https://wiki.oarc.uk/ 2026-04-08T14:01:12+00:00 https://wiki.oarc.uk/ https://wiki.oarc.uk/_media/wiki:logo.png text/html 2022-01-20T08:00:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2e0rpz?rev=1642665640&do=diff Robert Putt (2E0RPZ) This is currently a placeholder for Rob's profile, ramblings and content. Fun Stuff DMR SMS on Retevis RT3S text/html 2022-05-29T07:47:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2e0rpz_retevis_rt3s_dmr_sms?rev=1653810429&do=diff DMR SMS on Retevis RT3S Recently I decided to check out the SMS feature of DMR using my Retevis RT3S. I received reasonable success via Brandmeister using both my hotspot and local repeater (GB7PL). You can use SMS to either reach other amateurs, use services baked into Brandmeister, or send SMS to a mobile phone number with varying success text/html 2023-04-17T22:13:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2e0sips_packet_musings?rev=1681769621&do=diff A collection of some thoughts about Packet Radio. Not anticipated for direct consumption but I might find it useful to refer to them in future. Security Authentication Currently authentication in packet radio is somewhat lacking. Passwords are sent in the clear over RF and could be intercepted by anyone. One exception is BPQ's SYSOP password tool that sends a string of characters over the air similar to a text/html 2023-01-20T09:14:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2m0iig-ads-b-journey?rev=1674206069&do=diff My ADS-B Reception Journey Introduction The last time I tried ADS-B reception I had to put my antenna inside, receiving signals through several walls and floors of a big Scottish tenement block, and it was absolutely awful. I’d receive basically no positions, just some basic data, and I literally only had one, single plane in a day with a full position track in any particular direction. I tried making a 8 segment coax collinear antenna out of some RG59 for it and a 1/4 ground plane, but owning… text/html 2022-10-03T00:00:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2m0iig-automated-wx-station?rev=1664755217&do=diff Automated RPi Weather Satellite Station Build Introduction 2nd October 2022 - It is my goal to build a fully-automated station for the reception of APT and LRPT weather satellite images. The station will work on its own and store images for later extraction, possibly with a high-gain WiFi link for network access. This page will serve as a landing page for everything related to this project, from useful links with good information to my own notes as I think things out. text/html 2022-12-08T19:34:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2m0iig-satellite-yagi?rev=1670528087&do=diff 2/70 Direct-Fed Satellite Yagi Introduction Based off a design by Adam Kimmerly K6ARK this direct-fed 50 Ohm Yagi is a stupidly simple build. It’ll get you up to satellites, it’ll work well on the ground, AND it’s adjustable and may work well across other VHF and UHF bands (at the very least on receive). SWR will be 1-2:1 on both bands depending on your tuning accuracy. The rotating elements also allow for storage without disassembly. There's a driven element, a parasitic element to bring 70cm… text/html 2024-05-22T14:44:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/145alive?rev=1716389043&do=diff 145 Alive A semi-regular 2m FM activity day, with multiple informal nets running nationally. See <https://145alive.uk/> for more information. text/html 2021-04-20T11:42:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/2021_field_day_planning?rev=1618918939&do=diff We are planning to organise field days so members of the community can get to know each other face-to-face and play with radios. The current plan is to have two events, ideally on the same day, covering the North and South of Great Britain respectively. text/html 2021-03-15T19:53:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/activities?rev=1615837993&do=diff Activities SOTA group text/html 2024-11-11T09:43:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/advice?rev=1731318234&do=diff Advice Moved from Home page, but nothing has been removed. * Acronyms and Jargon list - common terms, simple explanations * The Amateurs Alphabet - Amateur Radio Jargon Buster * Amateur Radio: What is it? - A simple guide to what Amateur / Ham Radio is * Audio Interfaces - list of audio interfaces for transceivers * Bands and Modes - a rough guide to what you'll find where text/html 2023-06-18T16:27:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/amateur-alphabet?rev=1687105670&do=diff A * In the UK and some other countries “/A” is added after the callsign if an operator is transmitting from a fixed location that is not their permanent location given in their licence. It is not taken as seriously as it used to be, and in practice you will probably never hear it. text/html 2026-01-20T14:02:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/amateur_radio_magazine_pdfs?rev=1768917772&do=diff Amateur Radio Magazine PDFs to Download * The World Radio History site has historic amateur radio magazines from UK, Australia, New Zealand and USA in PDF format. Titles include Ham Radio Today, Amateur Radio, Short Wave Magazine, Practical Wireless and QST. * The Ham Radio Today magazine archive is at text/html 2022-04-14T13:23:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/anytone-night?rev=1649942620&do=diff Anytone AT-D878UVII Plus night Video of the night is YouTube Link Here Goal Bring together users, potential buyers and those interested in the Anytone AT-D878UVII Plus DMR radio via a community night event. Date and time Confirmed Thursday 03 Feb 2022 20:00 Suggested Agenda text/html 2022-06-17T21:17:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/aprs-kit-build?rev=1655500655&do=diff APRS Kit Build Other Radio brands may work with the setup Idea * an APRS igate with Tx capability [for personal use] for a baofeng Inspiration There are many ways to achieve the audio cable connections. Below are simple diagrams. You can go even more advanced with more components and cleaning up audio. text/html 2025-03-30T14:47:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/aprs?rev=1743346078&do=diff APRS APRS is Automatic Packet Reporting System. It is related to, but distinct from, Packet Radio. Lots more info on APRS here, but for now, just some specific notes. APRS on BPQ BPQ (packet node software) supports APRS pretty well, it turns out. See BPQ Nodes on APRS for a how-to guide on integrating an text/html 2023-03-09T01:18:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/aprs_activity_week?rev=1678324719&do=diff OARC APRS Activity Week WIP APRS activity is low in some areas resulting in a chicken-egg situation where someone sets up an iGate but doesn't hear any packets, or tries beaconing but isn't heard by any digipeaters or iGates, and ultimately gives up. By focusing activity over a set period hopefully it'll boost traffic, giving everyone an opportunity to gate some packets or have their beacons received by someone. text/html 2024-05-26T20:44:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/archive?rev=1716756285&do=diff Community Night Events * Raspberry Pi Night - Thursday 14 April 2022 * Anytone AT-D878UVII Plus DMR radio - Thursday 3rd February 2022 20:00 (UTC) * QSO-ho-ho - Festive Fun Activities * Autumn OARC Portable Day 2022 - sign up for Portable day here. * TBD - EI SOTA / POTA Day 2023 - sign up for Portable day here. * Field Day Planning Other Stuff * Success Blog - What has happened, any member can update text/html 2022-05-03T13:20:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/astrophotography?rev=1651584030&do=diff Capturing 428-750THz Signals: Astrophotography in Light Polluted London - Szymon - M0GZP Radio Hams are often interested in Radio Astronomy either the study of celestial objects at radio frequencies using radio telescopes or radio inferometry, or closer to home the detection of meteors using reflected signals. text/html 2024-02-06T16:16:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/attenuator?rev=1707236195&do=diff Build Your Own Attenuator Discussion In my experience in professional radio, nobody uses dummy loads. We normally use attenuators. Either we connect transmission equipment to one side of an attenuator and connect measurement equipment (spectrum analysers, protocol analysers, reference receivers, etc.) to the other side; or we connect signal generators to one side and connect receivers to the other side. The attenuator simulates the path loss between transmitter and receiver. text/html 2025-08-23T21:55:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/attiny85?rev=1755986139&do=diff Where to buy <https://www.amazon.co.uk/dp/B07MB8Y8SF> Additional board manager: <http://drazzy.com/package_drazzy.com_index.json> <https://github.com/SpenceKonde/ATTinyCore?tab=readme-ov-file> Random tutorials that got me there <https://startingelectronics.org/tutorials/arduino/digispark/digispark-windows-setup/> <https://www.instructables.com/How-to-Setup-DigiSprak-Attiny85-Board/> Sample sketch with LED connected to pin 1 and GND void setup() { // Initialize the digi… text/html 2022-12-12T17:15:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/autumn-oarc-portable-day-2022?rev=1670865341&do=diff 1st Autumn OARC Portable Day 17th / 18th September 2022 TL;DR An opportunity to get outside and play radio before the long nights of winter set in. No restrictions on what counts as portable, do a SOTA, do a HEMA, activate a park or just find a local beach and work some contacts. Log all your contacts in any 12 hour period over the weekend. Anything, any band, any mode, just get out there and use your radio. text/html 2022-01-30T16:54:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/bands-and-modes?rev=1643561659&do=diff Bands and Modes This page is meant as a modern non-exhaustive high level reference of what kinds of propagation and activity you will typically find on the common amateur radio bands. It may be UK-centric. Your contributions welcome! Please edit this page directly or make suggestions via #wiki-discussion text/html 2022-01-20T13:48:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/baofeng-aprs?rev=1642686530&do=diff Baofeng APRS Build Other Radio brands may work with the setup Idea * Pull together all the parts to make an APRS igate with Tx capability [for personal use] for a baofeng * As per #homebrew-projects basically buy in the parts and resell * Have an evening where we build and record it text/html 2022-02-19T11:02:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/battery-advice?rev=1645268566&do=diff Battery Advice Wise words from Discord, collated by 2E0UMS, on batteries and chargers. Serial Item Category Item Cost (at time of link) Recommended by Notes 001 LiFePO4 Battery ECO-WORTHY 12V 8Ah Rechargeable LiFePO4 Lithium Iron Phosphate Battery £50 Mark - 2M0IIG 002 LiFePO4 Charger text/html 2024-10-23T21:28:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/bbc-radio-rbs-tests-2024?rev=1729718917&do=diff BBC Radio RBS Tests 2024 In the early hours of Wednesday 23rd October the BBC ran their yearly of their ReBroadcast Standby system on their FM radio network for 2024. The line feed to all of the FM network transmitters except Wrotham was cut at times between 0130 & 0500 and test signals and tones were played instead, followed by normal station output. These tones travelled from transmitter to transmitter across the country, with each main transmitter picking up a signal from a nearby neighbour… text/html 2024-09-25T20:09:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/bookshelf?rev=1727294970&do=diff Members' Bookshelf Reference Library This page is for Reference of amateur radio documents which can help with information on callsigns and social history of amateur radio. Due to copyright this page is to point to you who has copies and for reference only. If you want your own copies of items like the T&R Bulletin/Radcom the copyright is owned by the RSGB and you will have to go to the * text/html 2024-03-27T12:39:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/bpq_api?rev=1711543173&do=diff Migrated to rest_api text/html 2023-10-02T09:16:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/bpq_configuring_mail?rev=1696238168&do=diff WIP WIP WIP WIP - DO NOT USE BPQ - Configuring Mail BPQ includes a Bulletin Board System that can be used for sending and receiving mail between local users on the same BBS and further afield. bpq32.cfg To enable the Mail functionality you will need to edit your bpq32.cfg file. text/html 2025-01-21T09:50:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/branding?rev=1737453015&do=diff OARC Branding This page is designed to serve as a guide to our visual identity, including our logos, colour palette, and font information. The page is intended to help us represent ourselves consistently across all our communications Colour Pallets text/html 2026-03-10T21:08:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/brickworks?rev=1773176918&do=diff OARC RSGB Brickworks * RSGB Brickworks Info RSGB Brickworks - OARC Members Record of Achievement * Red - Activities not Completed * Orange - Activities in Progress * Green - Activities Completed * Completed - How Many Activities of the 23 Completed * text/html 2023-06-14T20:51:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/calendar?rev=1686775897&do=diff text/html 2026-01-11T15:09:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/callbooks?rev=1768144145&do=diff Callbooks Callbooks Years Digital Original Keeper Jack Hum G5UM 1920 - 1934 Y N 2M0OCC Letts' Amateur Wireless Callbook 1928 Y N G3AKA Gage & Pollard The G Callbook 1951 text/html 2023-01-05T20:39:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/cisco_setup_usage?rev=1672951185&do=diff The OARC PBX has been retired. This page remains for posterity Cisco Phones Instructions on setting up compatible Cisco IP Phones Cisco 79XX and other 4 digit models The Cisco 79XX (7940, 7960, etc) are primarily designed to be used with Ciscos proprietary SCCP protocol. Many can be converted to use SIP, but the process is painful, and the end result is severely limited and may not work at all. text/html 2025-03-28T07:46:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/classification_of_radio_waves?rev=1743147964&do=diff In 1927 the International Radio Consultative Committee or CCIR was formed (which would later become the ITU-R). In their first meeting in 1929 in The Hague they decided on how to classify “Hertzian waves” according to their frequency. It classifies them into: text/html 2025-10-18T23:01:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/clubcalls?rev=1760828469&do=diff OARC Cloudlog Logbook * OARC UK Logbook * OARC Ireland Logbook * Note: Although we are primarily UK based club, we have no issues with looking to get Club Style Callsigns if the option if available to us. How to use OARC UK Club Callsigns * M0OUK & M0OEI available in UK (or club/region variations text/html 2023-05-06T13:24:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/cm108_sound_interface_smd?rev=1683379454&do=diff CM108 Sound Interface (SMD edition) The CM108 is a USB sound interface chip that has become popular among radio amateurs due to it's low price (~£3.50), ease of modifications, and the presence of GPIO pins for triggering things like PTT or detecting squelch opening. text/html 2025-02-20T16:47:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/codeofconduct?rev=1740070030&do=diff OARC Code of Conduct We aim to be a friendly, active, and creative community where people can learn, share, and grow. We welcome new ideas and encourage collaboration between groups with different skills and interests. Our Code of Conduct helps us work together respectfully and responsibly. It applies to how we behave in public and private as members of OARC, and we expect everyone to follow it in both spirit and practice. text/html 2023-02-20T23:19:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/comet_cwa1000?rev=1676935147&do=diff Antenna makeComet CWA1000Antenna configuration (Horizontal, V, L, Sloper)one side is horizontal (attached to the house) the other is angled down slightly to a tree (the pulley on the tree is around 7m)Height over ground in meters 7 Is there anything between antenna and the ground text/html 2025-03-30T23:17:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/community_videos?rev=1743376650&do=diff Youtube Videos Latest Video Past Talk Videos (Youtube RSS Feed / Auto Updates) Past Talk Videos * OARC S2MS (Slow To Medium Speed) MORSE NET - 18 May 2023 * NinoTNC with Nino - KK4HEJ & Tadd KA2DEW - 28 Dec 2022 * Battery Building - Lukas MM0OKO - 23 Jul 2022 * OARC Makers Show & Tell - May 2022 - 27 May 2022 * Astrophotography in Light Polluted London - Capturing 428-750THz Signals - Szymon M0GZP - 13 May 2022 * OARC Knowledge Share - Raspberry Pi Night - 21 Apr 2022 * OARC - … text/html 2024-09-25T16:15:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/constitution?rev=1727280921&do=diff OARC Online Amateur Radio Community Constitution The ratified community constitution is the Second Edition - 28th August 2020 Constitution on Google Docs (original). The purpose of this copy is to identify minor errors/omissions for future votes, and to provide a place to work on potential developments. Until formally voted in [ text/html 2022-08-27T11:36:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/cwcontacts?rev=1661600185&do=diff WAOARC Sample CW Contacts Here are two forms of CW contact that could be used between OARC members for the purposes of fulfilling the exchange required for WAOARC. Your side is in BLUE – their side is in RED. The usual morse prosigns are used, such as AR (end of a message), K/KN (asking for a response), ES for “and” FB and RR (“fine business” and “roger” - you have copied their message properly) – there are other letters you can send too such as QSL, BT ( = ) for a short pause, BK for a quick… text/html 2024-04-16T18:58:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/decibel-primer?rev=1713293892&do=diff Decibel primer The key things to remember: * dB is a ratio * m in dBm stands for milliwatt * W in dBW stands for Watt * 0dB is 1x of anything * 3dB is x2 of anything * 10dB is x10 of anything * dB can be added and subtracted freely and in any order text/html 2022-05-29T21:20:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/digital_modes_setup?rev=1653859236&do=diff How to setup station for digital modes FT8 Audio setup 100% FT8 basics, don’t turn it up to 11 and hope for the best. Likely result is transmitting splatter across the passband, worsening your reception reports and causing a nuisance. My advice is to turn radio transmit power to 100%, turn PC volume to 0%, and WSJT-X slider to 100%. Call CQ at 1500Hz offset. Turn up PC volume until radio’s RF output meter reads whatever max power you want to transmit, eg 50W. Then, whatever you do in WSJT-X, … text/html 2023-07-04T22:21:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/digital_voice?rev=1688509308&do=diff OARC Digital Voice Gateway OARC has a cross-network Digital Voice (DV) gateway supporting most amateur DV modes - DMR, EchoLink, D-Star and System Fusion. Details are on the main OARC website here and guidance for setting up different modes is available below. text/html 2023-04-15T16:47:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/directory?rev=1681577266&do=diff A-Z Pages Directory Subnamespaces: * adsb * antennas * digital_voice * emcomms * event * flight * g6fji * game * hardware * health * hf * history * humour * lora * member-projects * members * morse * packet * packet_network_monitoring_project * pi * playground * qo100 * radios * repeatergroup * sandboxes * talk * waoarc25 * waoarc25-kit-builds * wiki Pages in this namespace: * 145alive * 2021_field_day_planning * 2e0rpz * 2e0rpz_retevis_rt3s_dmr_sms * 2e0… text/html 2025-11-28T17:45:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/directory_newpage?rev=1764351926&do=diff Delete this text/html 2023-01-08T12:06:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/direwolf_web_log_viewer?rev=1673179609&do=diff Direwolf Web Log Viewer Sourced from Alfredo Vania, IZ7BOJ, GitHub Repository. <https://github.com/IZ7BOJ/direwolf_webstat> Overview I am assuming you have set up and configured an APRS iGate as detailed in this post You might be interested in an easy way of showing what stations you are hearing. Direwolf outputs its logs in a delimited format which can be opened and parsed by a variety of applications. However, sometimes a web text/html 2024-11-11T09:56:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/discord_bots?rev=1731318989&do=diff OARC Discord Bots ---------- OARC Spot Bot Overview: This bot provides real time spots of requested OARC members from various sources - currently RBN and POTA. Owner/s: Anthony - M7TAW Steve - M1SDH Commands: Commands are only available to those with the 'pota-spots-mgr' discord role. text/html 2024-10-26T15:47:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/displayingeqslcards?rev=1729957646&do=diff Moved to Displaying eQSL Cards text/html 2022-04-13T18:45:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/dmrgatewaysetup?rev=1649875554&do=diff DMR Gateway setup - or how do I use Brandmeister and Phoenix on a hotspot at the same time? Hat tip to Daniel - MI0DNL/EI8ICB for the details DMRGateway config My rewrite rules are as follows - they go in the DMRGateway config file (access via the Expert editor in Pi-Star): text/html 2025-11-30T10:14:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/dmr_networks?rev=1764497669&do=diff Some Essential Terminology for Using DMR and the Networks The MCC - Mobile Country Code Everything in the world of DMR has to accept the use of the MCC code. Every country has one, and was derived primarily for the Mobile Phone Networks. It seemed logical for the DMR community starting out, that to adopt this internationally recognised system was advantageous. text/html 2025-12-30T20:28:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/doublet?rev=1767126517&do=diff This is a draft summary of Robin G5OUT's contributions to OARC Discord on the subject of doublet antennas Doublet Antenna Overview A doublet antenna is a wire antenna used on HF that consists of a dipole-style wire antenna fed with ladder line (also known as twin feed, window line, or open line) and used in combination with a tuner. Feeding a dipole with ladder line allows it to be used as a multiband antenna, though routing and accommodating ladder line can be inconvenient. text/html 2022-06-01T19:51:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/dwd-wefax?rev=1654113105&do=diff DWD (Deutscher Wetterdienst) Weather Fax - 24th Feb 2022 The following images are a collection of weather products decoded from the DWD station DDK3 Hamburg (7880 kHz centre frequency) on the 24th February 2022. Before the images are some notes on software/hardware used for this decoding. Images have been rotated if required before uploading. As the day went on the band seemed to get more noisier, meaning certain charts are somewhat blurry. There may also be some multipath shenanigans going on … text/html 2023-05-06T19:30:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/dxcodeofconduct?rev=1683401434&do=diff DX Code of Conduct DX Code of Conduct (Original) Below is a copy of the DX Code of Conduct:- * I will listen, and listen, and then listen again before calling. * I will only call, if I can copy the DX station properly. * I will not trust the DX cluster and will be sure of the DX station’s call sign before calling. text/html 2025-08-10T21:42:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/earthing?rev=1754862165&do=diff Earthing Do not conflate RF earth ("counterpoise") with electrical earth Resources specific to the UK [ RSGB EMC Advice Leaflet EMC 7 - Earthing and the Radio Amateur: Basic Leaflet ] [ RSGB EMC Advice Leaflet EMC 7 - Earthing and the Radio Amateur: Advanced Leaflet ] [ IET Earthing - your questions answered (2011) ] Warnings for the UK Installing earth rods for RF is misguided. (a) it doesn't work very well due to skin effect, (b) it is not permitted for a non competent person to make ch… text/html 2026-04-07T14:41:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei-licence-statistics?rev=1775572878&do=diff EI Licence Statistics Skeleton page The total of live EI licences as at June 30 each year: 2005 - 1583 2006 - 1549 2007 - 1494 2008 - 1495 2016 - 1801 2017 - 1836 2018 - 1868 2019 - 1924 2020 - 1945 2021 - 2014 2022 - 2102 2023 - 2149 text/html 2025-03-13T18:38:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei5iybpastebin?rev=1741891093&do=diff Antenna calculators * <https://m0ukd.com/calculators/slim-jim-and-j-pole-calculator/> * <http://www.m0nwk.co.uk/slim-jim-antenna-calculator/> * <https://jeroen.steeman.org/Antenna/Slim-Jim-Antenna-Calculator> Moxon 2m Final lengths of copper 15mm pipe were: 1 x 707mm 2 x 352mm 2 x 132mm 2 x 74mm (Plus four 15mm corners) Tuning Gap 45mm Feedpoint gap 2mm Coax connected via 4mm brass screws, via a tapped hole in the copper and wood underneath, which makes the connection on the fron… text/html 2022-01-23T23:11:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei5iybpastebin2?rev=1642979509&do=diff Raspberry Pi Headless operating system Raspberry Pi Advanced Hidden Menu <https://www.tomshardware.com/news/raspberry-pi-imager-now-comes-with-advanced-options> press CTRL + SHIFT + X I found that this only works if you have on-board WiFi Defaults Default user: pi Default password: raspberry Change password sudo passwd pi Enable SSH text/html 2022-04-12T21:56:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei5iybpastebin3?rev=1649800565&do=diff How to connect external GPS module to Yaesu FTM-300 List of parts Production * 2.5mm TRR jack cable or adapter from 3.5 mm TRR cable * USB cable to power the system * MAX3232 chip * GPS module Beitian BN-220 * Heat Shrink Development and testing text/html 2024-03-26T23:07:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei5iybpastebin4?rev=1711494440&do=diff [Unit] Description=Direwolf Daemon Wants=network-online.target After=sound.target syslog.target network-online.target OnFailure=notify-pager@%i.service [Service] User=pi ExecStart=/bin/sh -c 'rtl_fm -f 144.80M -s 24000 - | direwolf -c /etc/direwolf.conf -t 0 -a 600 -' StandardOutput=syslog StandardError=syslog SyslogIdentifier=direwolf Restart=always [Install] WantedBy=multi-user.target text/html 2025-07-03T22:30:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ei5iybpastebin5?rev=1751581818&do=diff I wanted to add monitoring LDC display to my Pi Materials: * Some Dupont connectors to attach display to Pi pins * OLED example <https://www.amazon.co.uk/dp/B07MHGPNVT> I2C OLED Display Module 0.91 OLED Specimen: Software backup - in case repository is gone from git I add it here: text/html 2021-12-01T22:45:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/emf?rev=1638398738&do=diff Useful Links Below is a link to the OfCom flow chart for EMF compliance, anyone with an amateur radio licence, foundation or otherwise should complete this for every station they use, handheld, mobile, fixed or otherwise, if there is any chance they will operate near someone else: text/html 2023-09-11T20:55:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/events-plan?rev=1694465745&do=diff Event Planning Below is guidance for coordinating a Zoom Event destined for both the community and wider YouTube audience [including live streaming]. Community Representatives can support delivery as they have access to the various systems, but the actual work should be lead by the person proposing the event. text/html 2026-04-08T10:40:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/events?rev=1775644831&do=diff Online Amateur Radio Community Events Welcome to the Online Amateur Radio Community! There are two ways you can enjoy our events. Members can take part in events on Zoom. Our community is free to join, and is built on the community platform Discord. We offer a club without a committee, built and run by its members for its members. Rooms are open 24/7, we have specialist chat, training at all levels, and we are associated with the RSGB & provide their Brickworks scheme. text/html 2025-06-15T19:27:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/examfaq?rev=1750015676&do=diff Frequently Asked Questions about RSGB Amateur Exams Q. When can I get my callsign? After your exam RSGB forwards the results to OFCOM. OFCOM may do some validation, then will update the website to allow you to apply for a callsign, and send you a certificate. text/html 2025-10-31T11:29:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/exams_overseas?rev=1761910182&do=diff UK Exams from Overseas If I live in a different country, can I take the UK amateur radio exams? Yes anybody can take the UK amateur radio exams from any country. You can take the exams online and book the exams on the RSGB website. There are 3 levels of Licence, Foundation, Intermediate and Full. text/html 2021-04-20T10:30:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/field_day_planning_meeting_14_04_21?rev=1618914626&do=diff field day planning meeting 14/04/21 Notes taken on the 1st field day discussion held on 14/04/21 Objective and purpose * Public vs Private - Club/Community Field Day Event * Not a family event but family & friends are welcome * Children must be supervised text/html 2022-04-13T10:49:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ftm300gpsmod?rev=1649846991&do=diff How to connect external GPS module to Yaesu FTM-300 TL;DR Yaesu FTM-300 requires higher logic levels than BN-220 can provide. MAX3232 is used to translate lower TTL logic levels to higher RS232 logic levels - Quick tutorial here. GPS module will require to be set to GPS constellation only in u-center. Radio needs to be set to external GPS device. Transmit from the radio Data Tx to GPS receive Data Rx does not need to be connected. Baud rate is set to 9600. text/html 2023-04-13T11:53:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/g6fji?rev=1681386781&do=diff G6FJI's Ramblings BPQ32/Linbpq Configuration Custom Applications in LinBPQ Annotated bpq32.cfg for ABNGDN experimental node Tait 2010 to Tiny-2 TNC text/html 2021-06-20T23:33:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/gb0arc?rev=1624231998&do=diff GB0ARC Stats from Event * 331 QSOs * 20m 216 QSOs (FT8 & FT4) * 10m 66 QSOs (FT8) * 6m 26 QSOs (FT8) * 30m 12 QSOs (FT8) * 40m 6 QSOs (FT8) * 70cm 5 QSOs (DMR) * Furthest contact 4,468 miles (20m FT8 to Florida, & in last hour) text/html 2026-02-09T14:19:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/german-licence-statistics?rev=1770646762&do=diff Amateur Radio Information for Germany Germany has three categories of licence: * Class A, CEPT HAREC, all bands with up to 750 watts output * Class E, CEPT Novice, prefix DO, 100 watts on 1.8/3.5/21/28 MHz, 75 watts on 144/430, 5 watts 2.3, 5, 10 text/html 2025-05-02T19:03:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/gi3jmc-pastebin-coaxlist?rev=1746212593&do=diff Coax attenuation figures in dB per 100m Be aware that this table is designed to give approximate values for HF, VHF, & UHF use. Some values that were not available in the original specification details for an entry have been extrapolated using adjacent values and should be close enough for amateur use. Where conversion between meters and feet has been necessary, a standard of 30m = 100ft has been used. As the saying goes text/html 2025-03-22T01:07:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/glossary?rev=1742605672&do=diff Glossary of amateur radio terms The RSGB manuals lack a consistent index or glossary, so this has been created to aid in study. The definitions have been taken from the texts, or where the definition does not exist in the manuals, from other reliable sources. If you see an error, notify @trainers on the Discord server and it will be checked & corrected as necessary. - There is also text/html 2021-09-13T22:27:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/gnuradiotips?rev=1631572066&do=diff GNURadio Tips and Notes Introduction GNURadio is really cool. But the documentation is quite poor. With that in mind here are some random, unorganised tips and useful flowgraphs that will get you started and provide a base for your own projects. Mark MM3IIG text/html 2023-01-05T20:39:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/grandstream_setup_usage?rev=1672951194&do=diff The OARC PBX has been retired. This page remains for posterity Grandstream Phones Instructions on setting up compatible Grandstream IP Phones Grandstream 21xx series The 21xx series are still in production, with regular firmware updates. If these instruction don't work for you then please check your firmware version, by pressing the phone's up-arrow key. The example screenshots are from a GXP2140, but should be the same on any Grandstream 21xx phone. } text/html 2022-12-03T19:36:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/group-buy-builds?rev=1670096195&do=diff OARC Group Buy Builds NinoTNC November 2022 Group Buy facilitated by Tom M0LTE * NinoTNC - NinoTNC Builds Suggestions for Future Group Buys Builds Please add suggestions below. text/html 2023-08-05T12:27:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hamclock_joggler?rev=1691238429&do=diff Hamclock Joggler by Jonathan, 2E0LXQ Despite being out of production for nearly a decade, the O2 Joggler is still a useful & capable device that was probably a little too expensive for what it did when it launched in the early 2000s. However, being well-made and with good components, it means there's still quite an active hacking community around the devices, mainly centred on the text/html 2023-03-03T22:40:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hamnews?rev=1677883257&do=diff News Feeds To Add RSGB GB2RS links RSGB News ARRL News QRZ News DX News Reddit Ham Radio News * Built from news post with following keywords (amateurradio, hamfest, hamradio, hsmm_mesh, hamitforward, antennasporn, yaesu, morse) text/html 2023-11-24T20:43:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hamradiodiscord?rev=1700858626&do=diff Ham Radio Discord OARC Discord * Join OARC OARC's Own Discord Server UK based Discord * Clublog by Michael G7VJR * DX Commander run by Callum M0MCX International Discord Servers * Gridtracker founded by Tag N0TTL * Ham Radio Crash Course run by Josh KI6NAZ * Hamshack Hotline founded by John K1WIZ * Pride Radio Group ran by Michaela VK3FUR text/html 2023-05-25T21:27:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/health?rev=1685050033&do=diff Health Started after a friend of someone on Twitter attempted suicide. We're going to make sure the resources for health and mental health stuff are available here. NHS Mental Health List * NHS List of mental health charities Other Mental Health & Support Charities * Gendered Intelligence - Gendered Intelligence Support Line Service text/html 2024-09-19T12:32:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hf?rev=1726749125&do=diff HF Operating HF is a massive subject area. This section is intended as a bit of a newcomer's guide to try to make it easier to get up and running on HF. Note: contributors wanted - please feel free to edit this or any of these pages. Antenna systems Transceivers Transmission lines Bands Voice modes Digital modes EMC / RFI text/html 2022-03-06T16:36:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hotspot_dmr_decode_trouble?rev=1646584575&do=diff I decided to try and decode the DMR data coming out of my hostpsot using various pieces of software, in order to listen to the resulting voice communications from my PC. For simplicities sake, to get a relatively frequent stream of data, I have opted to enable DMR2YSF mode on my hotspot which will let me listen to an active YSF reflector, AmericaLink, over DMR. text/html 2023-07-22T15:43:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/hsmodem?rev=1690040623&do=diff AMSAT-DL Multimedia HS Modem Official wiki: <https://wiki.amsat-dl.org/doku.php?id=en:hsmodem:start> Official Windows setup instructions: <https://wiki.amsat-dl.org/doku.php?id=en:hsmodem:installwin> The official download has no PTT support, use M0LTE's fork with PTT support: <https://github.com/M0LTE/AMSAT-DL-QO-100-Modem/releases> Prerequisite If a message about missing DLLs appears when the program starts (msvcp140.dll and others), the Microsoft package: vc_redist.x86.exe must be install… text/html 2024-11-21T22:58:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ideas?rev=1732229907&do=diff Idea of what we should add to the wiki List below. Please add a date along with any future entries you make. Also if you want to work on a page, but there isn't a place for it yet on/via the Start page, please add here for now. Ideas * Radio Accessibility (For Radio Amateurs with Disabilities), and how can we support them (RAIBC) text/html 2025-05-31T22:29:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/iss-eu633?rev=1748730562&do=diff text/html 2022-04-13T14:46:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/isssstvgallery?rev=1649861199&do=diff ISS SSTV OARC Reception Gallery Here’s gallery of ISS SSTV images received on 2M FM by members of the club. These are all received on 145.800 MHz at 25 kHz bandwidth. Details of the setup for receiving each pass are included. 6-7th August 2021 Capture text/html 2024-08-13T11:34:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/jargon?rev=1723548846&do=diff Jargon and Acronyms Leep in Alpha order please - There is also The Glossary A-Z list Term Meaning Link (if available) APRS Automatic Packet Reporting System APRS ARRL Amateur Radio Relay league (US society) ARRL CEPT European Conference of Postal and Telecommunications Administrations text/html 2022-07-21T10:05:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/js8-call-net?rev=1658397942&do=diff OARC JS8 Call Net Night TL;DR An opportunity to work other OARC members in a net on 40m JS8 Call. Come and experience a new mode and learn in a fun, friendly way. Date Time The Net is planned for Thursday 28 July at 2000 BST on 40m JS8 Call 7.078 text/html 2023-06-27T18:53:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/js8?rev=1687892037&do=diff JS8 (JS8Call/FT8Call) JS8 is a weak signal mode similar to FT8. JS8 provides keyboard-to-keyboard chat, mailboxes, station query and more functionality. The official JS8 website can be found at: https://js8call.com/ ---------- Get JS8 The JS8 installation is simple! JS8 is available for Linux, MacOS and Raspberry Pi. text/html 2024-09-17T09:56:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/land_speed_record_rules?rev=1726567005&do=diff Radio Data Land Speed Record Goal: Measure the fastest data transfer speed over RF. Motivation: Drive forward the state of the art in data transfer speeds, by having a competition. (Rules: Version 20240917) * All transmissions must be done within the amateur bands using amateur license rules. text/html 2022-01-16T15:57:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/leaflet?rev=1642348648&do=diff What on Earth are you doing? If you're reading this, chances are that you've bumped into me out doing my hobby of Amateur Radio a.k.a. “ham radio”. I might be taking part in a radio contest, up on top of a hill or by the coastline to get a good take-off for radio signals, or I might be just enjoying some time playing with radios and antennas. text/html 2025-07-06T09:41:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/learning_dsp?rev=1751794871&do=diff Perry (M0PYL)'s advice for learning Digital Signal Processing. This is extended from an email I sent to someone asking for advice. I'd suggest starting with an RTL SDR, they're super cheap, RX only enough to start playing around. They're relatively cheap, and so less concerning if you damage or mod it or whatever. TX capable SDRs are expensive (relative to RX SDRs) and the cheaper TX capable SDRs often introduce a lot of noise. None of the transmit capable SDRs output significant power, y… text/html 2024-09-23T20:46:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/licence?rev=1727124419&do=diff Current UK Amateur Radio Licence Previous versions 21 Feb 2024 [ Amateur Radio Wireless Telegraphy Licence Conditions Booklet OFW611] - your licence [ Licensing guidance document for amateur radio] - guidance notes to help you interpret your licence [ Notice of coordination procedures] - specific restrictions / procedures which apply to parts of the amateur allocation [ General notice of decision to vary amateur radio licences ] - the outcome of the 2024 consultation text/html 2025-11-29T15:01:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/licence_statistics?rev=1764428500&do=diff Licence Statistics Some countries do not issue individual amateur radio licences, instead the hobby is licence-exempt (known as a Class licence in Australia and New Zealand). To be able to operate individuals must first achieve an amateur radio qualification, they can then apply either to the regulatory authority or the national society to get a callsign. For example in Sweden, which became licence-exempt in 2004, amateur callsigns are issued by the National Society the SSA. text/html 2025-10-15T12:18:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/logging?rev=1760530700&do=diff Ham / Amateur Radio Logging Programs Comparison Below is a comparison table of popular Ham Radio logging applications. This includes each program's cost (free/paid), and supported platform(s), to help you select the best logger for your station needs. text/html 2024-01-14T15:56:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/m0tzoconky?rev=1705247771&do=diff background yes use_xft yes xftfont 123:size=8 xftalpha 0.5 update_interval 1 total_run_times 0 own_window yes own_window_type normal own_window_transparent yes own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager double_buffer yes minimum_size 250 5 maximum_width 460 draw_shades no draw_outline no draw_borders no draw_graph_borders no default_color gray default_shade_color red default_outline_color green alignment top_right gap_x 10 gap_y 10 no_buffers yes uppercase no cpu_avg_sampl… text/html 2024-04-23T22:33:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/m0tzoinkyphat?rev=1713911632&do=diff #!/usr/bin/python3 # -- coding: utf-8 -- # Fetches text from the api and displays it on the screen, made for OiFrog # before running make sure you have python3, then install libraries: # sudo pip3 install inky font_fredoka_one requests Pillow import os import argparse import requests from inky import InkyPHAT from font_fredoka_one import FredokaOne from PIL import Image, ImageDraw, ImageFont from datetime import datetime PATH = os.path.dirname(__file__) API_URL = 'https://m.0tzo.me/index.php… text/html 2023-11-06T18:51:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/m1sdh-portable-equipment?rev=1699296674&do=diff M1SDH - My HF Portable Equipment Below is the equipment I use for portable HF, specifically designed to all carried in a back pack for fairly lightweight POTA/SOTA/WWFF activations. The equipment I have here is with the Xiegu G90 radio, but nothing specific here that couldn’t be used with any HF radio. This is for text/html 2022-03-20T20:25:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/m7twspb1?rev=1647807947&do=diff M7TWS Pastebin 1 Community idea: "OARC experiments - The forgotten modes" “OARC experiments - The forgotten modes” refers to the idea of using data modes on any band which are typically not heard as commonly as they once were, now that newer modes have taken over. The idea came about on 20/03/2022 while we were playing with RTTY with little success. It was suggested we attempt to use a slower mode that is able to break through the noise, Olivia 4-125 was the mode of choice. With this alternati… text/html 2022-06-10T19:44:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/maker-show-and-tell?rev=1654890269&do=diff OARC Makers Show and Tell Night This is a bit of an advert and a little bit of a sign-up sheet for the proposed Makers Show and Tell Night. Feel free to edit this page and add your ideas! Goal Bring together the OARC community and show off our projects, talk about ideas for projects, inspire one another or just learn a few things. text/html 2023-01-07T22:54:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/mats-packet-scratchpad?rev=1673132090&do=diff Mat's packet scratchpad Somewhere to hold some notes. If useful I'll migrate them to separate pages. text/html 2023-01-30T21:00:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/maxon-transceiver?rev=1675112429&do=diff Maxon info Some info on the Maxon PM160V and friends. Info Modification text/html 2024-07-13T09:07:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/mcmichael_meetup_2024?rev=1720861655&do=diff WAOARC Net #003 Introduction The McMichael Radio & Electronics Rally and Car Boot Sale is a staple of the Radio Amateur calendar. We're using the Rally as a Meetup venue convenient for OARC members living in the South and South East (although come from further afield, by all means). text/html 2026-03-07T20:49:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/memberarticles?rev=1772916579&do=diff Member Articles Simon M0GZP * A review of a powered antenna switch for SDR Darrell M0ODH Here are some cheatsheets I put together on Ham Bands and my QRP tranceivers for easy reference * [UK Ham Bands Cheatsheet] - A 2 page summary of UK Ham Bands and useful information for handy reference * [Xiegu x6100 Cheatsheet] - Handy reference cheatsheets for Xiegu x6100 tranceiver text/html 2026-02-12T01:41:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/memberships_stats?rev=1770860462&do=diff Members * 31/01/2026 3,200 * 13/10/2025 2,800 * 17/09/2025 2,700 * 30/03/2025 2,050 * 23/02/2025 1,925 * 07/09/2024 1,725 †† * 13/08/2024 2,500 * 22/07/2024 2,450 * 27/06/2024 2,400 * 19/05/2024 2,350 * 22/04/2024 2,300 * text/html 2023-01-05T20:40:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/mitel_setup_usage?rev=1672951203&do=diff The OARC PBX has been retired. This page remains for posterity Mitel Phones Instructions on setting up compatible Mitel IP Phones Note: Mitel phones can be a bit tricky about working with SIP, and you may need a TFTP server to update the firmware. Some models aren't supported. text/html 2022-07-27T18:12:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/motzopastebin?rev=1658945522&do=diff Conky * M0TZO's Conky Script * M0TZO's InkyPhat Script Pager curl curl -H "Content-Type: application/json" -X POST -u "m0tzo:GetOwnPassword" -d '{"text":"I am currently on 20m FT8 de M0TZO","callSignNames":["m0tzo"],"transmitterGroupNames":["all"],"emergency":false}' http://hampager.de/api/calls text/html 2024-10-11T17:41:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/mp-compression-plug?rev=1728668497&do=diff How to terminate coaxial cable with Messi & Paoloni compression plug text/html 2022-12-28T12:43:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/nationalsocieties?rev=1672231415&do=diff National Societies Europe * Sweden - SES - The Association of Swedish Broadcasting Amateurs * UK - RSGB * UK - OFCOM (Gov) America * Canada - Radio Amateurs of Canada * Canada - Innovation, Science and Economic Development Canada (Gov) * USA - <http://www.arrl.org/The American Radio Relay League> * USA - FCC (Gov) Australia * Australia - The Radio Amateur Society of Australia * Australia - Wireless Institute of Australia * Australia - ACMA (Gov) text/html 2023-04-02T17:22:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_apr_23?rev=1680456126&do=diff National Packet Update - April 2023 Introduction Welcome to the National Packet Update, where we document the progress made in increasing packet radio activity in the UK and Ireland and our aspirations to re-build a useable packet radio network. It's been another busy month for packet radio, with more people getting involved, new nodes popping up, and more viable RF paths being discovered. To keep things synchronised at a slightly lower pace a new UK Packet Radio mailing list has been created… text/html 2023-09-14T11:53:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_aug_23?rev=1694692428&do=diff National Packet Update - August 2023 Introduction Welcome to the latest edition of the National Packet Update, where we strive to collate updates on our endeavors to increase packet radio usage and expand its coverage in the United Kingdom, Ireland, and beyond. text/html 2023-09-26T20:08:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_draft?rev=1695758908&do=diff National Packet Update - September 2023 Introduction Welcome to the latest edition of the National Packet Update, where we strive to collate updates on our endeavors to increase packet radio usage and expand its coverage in the United Kingdom, Ireland, and beyond. text/html 2023-07-04T17:05:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_jul_23?rev=1688490314&do=diff National Packet Update - July 2023 Introduction Welcome to the latest edition of the National Packet Update, where we strive to collate updates on our endeavors to increase packet radio usage and expand its coverage in the United Kingdom, Ireland, and beyond. text/html 2023-07-04T07:46:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_jun_23?rev=1688456763&do=diff National Packet Update - July 2023 Introduction Welcome to the latest edition of the National Packet Update, where we strive to collate updates on our endeavors to increase packet radio usage and expand its coverage in the United Kingdom, Ireland, and beyond. text/html 2023-03-31T17:43:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_mar_23?rev=1680284586&do=diff National Packet Update - March 2023 Introduction Welcome to the first update on the National Packet Project! It's hoped it'll help keep people up to date on the progress we've made, generate some interest and spark some conversations. First, a brief introduction. Packet Radio gained popularity in the amateur radio community in the 80s and 90s as a method of transmitting data split into text/html 2023-05-08T20:33:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_may_23?rev=1683578015&do=diff National Packet Update - May 2023 Introduction Welcome to the National Packet Update, where we track and report on our efforts to increase packet radio usage and coverage in the United Kingdom, Ireland and beyond. The Online Amateur Radio Community (OARC) have begun to organise another NinoTNC Group Buy. The NinoTNC is a modern text/html 2023-10-06T09:30:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/national_packet_update_sep_23?rev=1696584619&do=diff National Packet Update - September 2023 Introduction Welcome to the (slightly delayed) the National Packet Update, where we strive to collate updates on our endeavors to increase packet radio usage and expand its coverage in the United Kingdom, Ireland, and beyond. text/html 2022-12-02T12:24:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/newmembers?rev=1669983894&do=diff Info for New Members * Read our Constitution here * Join Here * If new to Discord Community Reps are on hand when you join the Discord Server * You will need to update Username & post a message to show you've read the joining process * Watch the welcome video. * We have a twice monthly online pub meet text/html 2022-01-14T23:10:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/newtoradio?rev=1642201827&do=diff New To Radio or What I need to get on the Airwaves. For some software, you will need to register and may need to supply copy of your licence. When building this list, we tried to use available UK vendors and avoid the larger international sites, so prices may differ. text/html 2023-10-07T16:26:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ninotnc-3d-printed-cases?rev=1696696019&do=diff Moved to NinoTNC text/html 2023-02-20T22:48:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ninotnc-aprs?rev=1676933310&do=diff APRS with the NinoTNC Note: This is currently a WIP The NinoTNC can be used to send and receive APRS which will allow you to run an iGate, Digipeater or position beacon when used in conjunction with some additional software. As well as contributing to the text/html 2023-10-07T16:27:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ninotnc-builds?rev=1696696046&do=diff NinoTNC Builds Members: feel free to create a section / page here (or linked) to here with your own build. Simon M0SMU is known to have built a revision 4 NinoTNC. Tom M0LTE has built and operates two revision 3 NinoTNCs on his node GB7RDG. One is 1200 baud on 2m, and the other is 9600 baud on 70cm. text/html 2023-10-29T16:50:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ninotnc-on-hf?rev=1698598215&do=diff See ninotnc-on-hf text/html 2024-01-14T11:09:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/nordicqso?rev=1705230552&do=diff Nordic QSOs Swedish English Swedish Find a free channel, and after listening, call: Hitta en frekvens som låter ledig och ropa: “This is _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (you) – Is this frequency in use?” “ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (du) – använder någon frekvensen?” text/html 2023-10-13T21:32:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-ei?rev=1697232776&do=diff This page hosts activity of OARC-EI Activation Reports POTA EI-0150 text/html 2023-10-13T21:27:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-ei_pota-ei0150?rev=1697232468&do=diff POTA EI-0150 - Youtube So I may not be new to radio but I'm new to ham radio, so some of the lads thought I should do a POTA and meet up in person. We looked at a map and saw the centre of gravity for OARC hams in Ireland was somewhere near Athlone. So Ben (EI9IUB) and Vic (EI5IYB) organised a POTA activation in the Portlick Millenium Forest (EI-0150) which is indeed somewhere near Athlone. text/html 2025-05-09T20:03:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-privacy?rev=1746821033&do=diff OARC GDPR / Privacy Policy Status: DRAFT At OARC, we take your privacy seriously. We aim to collect as little personal data as possible and keep it only for as long as necessary. This policy applies to our main website and any affiliated projects or initiatives. text/html 2022-06-26T16:20:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2022-2m0pvp?rev=1656260449&do=diff Back to the main 2022 page 2M0PVP Activation Report Circumstances took me away from my home QTH up to Orkney for the SOTA day. Plans were made and remade as I worked out what options I'd have for transport and time. Finally I setted on Mid Tooin (GM/SI-190). They forecast leading up to the day started out saying it wouldn't be too wet, but as the day got closer it steadily improved until they day itself dawned very misty but with a promise that I'd need plenty of sunblock and a hat before the… text/html 2022-06-26T22:33:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2022-ei5iyb?rev=1656282825&do=diff Back to the main 2022 page EI5IYB Activation Report 2022 EI/IE-052 Little Sugar Loaf EI/IE-022 Great Sugar Loaf text/html 2022-06-26T17:31:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2022-g6awk?rev=1656264695&do=diff Back to the main 2022 page G6AWK Activation Report 2022 25th June, 2022. As someone who gets a fair amount of 'mic fright', the chance to do my first SOTA activation on a day where a bunch of lovely OARC people would also be out and active was an instant yes from me! I'd been to Ditchling Beacon a few weeks ago to scout the area and get an idea what it might be like on the day, its a lovely area with great views and a nice big fairly flat activation area. The bus from Brighton drops you of… text/html 2023-10-23T09:23:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2022?rev=1698053028&do=diff Back to the main page OARC SOTA Activity Day - 25th June 2022 The first OARC SOTA Activity Day happened on 25th June 2022. This page is an archive of the day will be a repository for reports and write-ups from OARC members. Here is the thread for 2022 on the SOTA Reflector, should you want to discuss things there with a more public audience: text/html 2023-10-23T09:31:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2023?rev=1698053487&do=diff Back to the main page OARC SOTA Activity Day - 8th July 2023 The second OARC SOTA Activity Day happened on 8th July 2023. This page is an archive of the day will be a repository for reports and write-ups from OARC members. Here is the thread for 2023 on the SOTA Reflector, should you want to discuss things there with a more public audience: text/html 2024-11-01T10:05:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-2024?rev=1730455531&do=diff Back to the main page OARC SOTA Activity Day - 29th June 2024 The third OARC SOTA Activity Day happened on 29th June 2024. This page is an archive of the day will be a repository for reports and write-ups from OARC members. Activation Reports (table to be cleaned up) text/html 2022-05-31T22:05:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-activation-report?rev=1654034755&do=diff Back to the main page Writing an activation report It is customary (although not mandatory) to create an activation report of your trip. This can take many forms, from words to pictures, a human-readable log of your contacts, a QSO map, or a video perhaps. Anything is cool, really, and you are encouraged to be creative. text/html 2023-03-06T10:34:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-activity-plan?rev=1678098867&do=diff Back to the main page Activity Plan * Be sure to post where you’ll be in advance on SOTAWatch as an alert so people will be ready to chase you. Mention OARC if space allows. After logging in click on Alerts and then Add Alert. When adding your frequencies and modes make sure you use the correct format, for example: [7-ssb, 14-cw, 145.4-fm] (please really try to get this right, I have OCD and I think it's better if we ALL match the format, so people using filters will find us properly). text/html 2025-04-03T19:46:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-antennas?rev=1743709576&do=diff Back to the main page | Back to What Should I Take Antennas The primary goal for any SOTA antenna is to be lightweight while also being somewhat efficient. Typically setups use low power (unless you have strong arms!) so we want to get the best out of them. We have to also consider the support structure for the antennas as well as the antennas themselves. Fiberglass poles are popular as they won’t detune any attached antennas. They are also lightweight and can usually stow to a short size, … text/html 2025-04-03T20:06:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-beginners?rev=1743710769&do=diff Back to the main page What should I take? Planning your first SOTA activation, or returning after some time, can feel overwhelming, but it’s important to remember that the skills you already bring to the table can make the experience uniquely your own. Whether you're an experienced hiker, an expert cartographer, a seasoned outdoors worker, or simply someone who’s great at preparing a packed lunch, these transferable skills will serve you well on your activation. With a bit of preparation, you’… text/html 2022-05-26T21:35:01+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-power?rev=1653600901&do=diff Back to the main page | Back to What Should I Take Power options for SOTA expeditions Power options will depend entirely on your kit, of course. If you have multiple pieces of equipment to power you may want to look into distribution panels and Powerpole plugs. Or you may just want to wind wire around the battery terminals if you have an all-in-one radio with a tuner included. text/html 2025-04-03T20:47:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-radios?rev=1743713262&do=diff Back to the main page | Back to What Should I Take Radio choices for SOTA expeditions This guide aims to help you choose the right radio setup based on the type of activation you’re planning, the power you need, and the mode that suits your style. There’s no one-size-fits-all, and the gear you choose will depend on whether you’re going for a quick VHF activation with a handheld (HT) or a more involved HF setup, which might require a bit more preparation and practice. text/html 2025-06-02T19:34:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day-scoring?rev=1748892889&do=diff Back to the main page SOTA Exchange, Scoring and Logging The usual SOTA exchange is callsign and summit reference. Names and signal reports are nice but not technically part of a SOTA log. Be sure to also record the UTC time of each QSO you have as you will need this later when logging. text/html 2025-06-06T20:07:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc-sota-day?rev=1749240455&do=diff OARC SOTA Activity Day - Saturday 14th June 2025 Past Events/Activation Reports 2022 | 2023 | 2024 Introduction This came about originally because Mark (2M0IIG) wanted an RSGB Brickworks point for organising a club meeting or event. He toyed with a few ideas but it seemed like the easiest thing to do was to arrange a text/html 2025-06-15T19:16:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarcfaq?rev=1750015007&do=diff Frequently Asked Questions (FAQ) New Questions * If you have a question, ask here, and we will attempt to answer * what is SIP service? * how do I use the digital bridge? FAQs Answered OARC * How to I join OARC * Visit <https://www.oarc.uk/join> and click Image or the Click Here link and we use the Discord platform text/html 2022-02-01T16:44:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarclogo3dprint?rev=1643733885&do=diff OARC Logo 3D Print - 2E0UMS (Simon) The Finished Product STL Files to create your own * OARC Logo V1 - Version 1 of the logo - 5mm raised text and logo * OARC Logo V2 - Version 2 of the logo - 3mm raised logo, 1.5mm raised text Reference files to customise * OARC logo as SVG - SVG of original logo for upload into your CAD package text/html 2023-01-05T20:39:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/oarc_pbx?rev=1672951147&do=diff The OARC PBX has been retired. This page remains for posterity OARC PBX The Online Amateur Radio Community host a PBX to allow members to contact each other and hold SIP nets (also known as Conferences) To request an extension join #sip-network on the Discord server and check the links at the top. Once you've filled in the form someone should be in touch in a day or two to give you the login details. text/html 2024-10-20T20:18:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/ontheair?rev=1729455497&do=diff On The Air Schemes Scheme Acronym Location Website Notes Beaches Acronym Location Link Bunkers Acronym Location Link Churches Acronym Location Link Flora and fauna Acronym Location Link text/html 2026-04-01T23:48:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/opengd77?rev=1775087300&do=diff OpenGD77 is popular DMR radio firmware Website - <https://www.opengd77.org/index.php> Web Flasher - <https://grid.radio/opengd77/> SMS release for OpenGD77 <https://www.opengd77.org/viewtopic.php?t=45> OpenGD77 boot melody: Nokia Tune - 45,5,43,5,35,10,37,10,42,5,40,5,31,10,33,10,40,5,38,5,30,10,33,10,38,20,0,0 OpenGD77 boot melody: Nokia Tune (slower) - 44,4,42,4,34,8,36,8,41,4,39,4,30,8,32,8,39,4,37,4,29,8,32,8,37,16,0,0 text/html 2022-01-16T19:41:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/openstudy?rev=1642362090&do=diff Open Study Group The intention of this group is to be holistic in the way we offer training and tailor to the requirements of the current group/individuals. The ideas below are suggestions, and many may not be used or required. This is not an Official Course or Training, but will take suggestions of topics people want for the next session, and offer a discussion and/or live demonstrations (via Screenshare). text/html 2021-08-21T23:05:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/openstudyantennas?rev=1629587140&do=diff Open Study - Antennas Antennas was the first topic selected by the Community on the #open-study-group channel as the first topic to collate Information and Resources on. Please feel free to post information, links (web pages, videos) on this page, or to linked pages. If you need to sign up to the Wiki, please post on the text/html 2023-07-16T17:41:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/openwebrx?rev=1689529305&do=diff OpenWebRX OpenWebRX is a multi-user SDR receiver that can be operated from any web browser without the need for any additional client software. Raspberry Pi + SDR Play Setup Walkthrough This guide does assume some Linux terminal experience. There are multiple variants of OpenWebRX out there - this guide is for the basic text/html 2025-12-23T23:09:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/operating_abroad?rev=1766531351&do=diff Operating Abroad Information Elsewhere * CEPT License (Wikipedia) * RSGB Operating Abroad * ARRL CEPT Information * Worldwide Information on Licensing for Radio Amateurs by OH2MCN (hasn't been updated in a while) Africa * South Africa (CEPT - Yes / HAREC) * National Society South African Radio League (ZARL) * CEPT Licensing in South Africa Antarctica * Falkland Islands, South Georgia and South Sandwich Islands (CEPT - No / HAREC - No) text/html 2024-11-08T21:39:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/orphans?rev=1731101940&do=diff Orphan Pages Wanted Pages Valid Pages text/html 2022-12-02T17:27:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-leaf-station-cookbook?rev=1670002046&do=diff Interactive Packet Stations Things to write up Dire Wolf + AGWTerm NinoTNC / Dire Wolf + QtTermTCP KISS modem + Linux kernel kissattach + axcall It is possible to use the traditional AX.25 tooling in the Linux kernel to talk to a KISS modem, including Direwolf. The advantage of this is that you have access to 30 years worth of tools and documentation. The disadvantage is that you have tools and documentation which might not have been updated for 30 years. text/html 2023-04-03T22:17:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-linbpq-config?rev=1680560274&do=diff Moved to linbpq-sample-config text/html 2023-04-03T22:11:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-linbpq-x86?rev=1680559915&do=diff Moved to linbpq_pc_installation text/html 2023-04-03T22:10:47+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-linbpq?rev=1680559847&do=diff Moved to linbpq_pi_installation text/html 2023-04-10T17:14:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-ninotnc-next-steps?rev=1681146868&do=diff I've built my NinoTNC, now what? First thing you need to do is build or buy a radio cable. Building a radio cable is easy. The radio connector on the NinoTNC is a DB9 socket, and you need a DB9 plug to interface it. The pinout is the Kantronics standard: text/html 2022-12-29T18:05:41+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-node-station-cookbook?rev=1672337141&do=diff Building / running a node There are many ways to run a node. Here are some. LinBPQ on Pi Tom will write up the setup he uses for GB7RDG here. For now, here's the config file. TARPN TARPN is a prescriptive formula which builds on G8BPQ in order to achieve a certain network topology and very good throughput at the expense of dedicated point to point links, rather than point to multi-point, so more radios. text/html 2023-10-29T16:58:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-radio-in-the-2020s?rev=1698598733&do=diff Packet Radio in the 2020s This write-up is from the early part of the project, and as such may not be fully up to date. Packet radio is a means of “networking” together amateur radio stations using inexpensive and potentially home-built equipment and open source software. Specialised applications can then operate over that network - commonly including keyboard-to-keyboard chat, and BBS including routing mail between remote BBSs and to/from the internet. Surfing from node to node is also possib… text/html 2023-04-09T12:54:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet-station-building?rev=1681044875&do=diff Packet Station-Building Here is a collection of resources on interfacing various hardware and software. * Tait TM8105 notes from TARPN * Direwolf for Windows with Hamlib * Member-contributed list of suitable radios * Selection of common transceiver wiring diagrams text/html 2026-02-20T18:28:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet?rev=1771612088&do=diff What is Packet Radio? MB7NAF Packet Node, with a TNC and Radio Packet Radio gained popularity in the amateur radio community in the 80s and 90s as a method of transmitting data split into “packets” across the country and even further afield, before the internet was widely available. text/html 2023-11-11T13:41:54+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet_glossary?rev=1699710114&do=diff Moved to Packet glossary of terms text/html 2023-01-23T19:49:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet_hf?rev=1674503347&do=diff This is beginning of packet on HF page Direct NinoTNC to Icom 7300 Hooking up NinoTNC to Icom 7300 - still figuring out how to do this Required to make it work: TNC: NinoTNC, Soundmodem, or Dire Wolf packet terminal software - for example QtTermTCP text/html 2023-10-04T07:25:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet_messaging?rev=1696404317&do=diff See packet:mail text/html 2025-01-29T23:02:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/packet_peer_finding?rev=1738191778&do=diff Finding other Packet peers This service is no longer running To participate in the OARC Packet Project stations need to find other stations that are in range in order to hopefully peer with them. We have a map of members interested in participating, but it doesn't tell us who is actually in range of one another. text/html 2026-02-09T22:28:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/passed?rev=1770676120&do=diff I Passed with OARC (or with other clubs) If you passed any level with OARC, or elsewhere, feel free to post here. If you don't have/want access, let someone on the Discord channel #wiki-discussion know and can be updated for you. Callsign in Red & Bold indicates an OARC Pass text/html 2025-07-02T20:45:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pastebin?rev=1751489123&do=diff Members Pastebins M0TZO M0TZO's Pastebin EI5IYB EI5IYB's Pastebin EI5IYB's Raspberry Pi EI5IYB's FTM-300 External GPS EI5IYB's Pager Pi watchdog Raspberry Pi monitoring OLED 2E0RPZ 2E0RPZ's Pastebin of Sorts M7TWS M7TWS Pastebin 1 - The forgotten modes G6FJI G6FJI's Pastebin GI3JMC GI3JMC's Coax List text/html 2021-07-22T15:40:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pbx_do_list?rev=1626968425&do=diff PBX To Do List Post Migration Since the migration there's a few things outstanding that need to be resolved. I'll list them here so we can chip away at them * Re-instate trunk to Ham Shack Hotline * Re-instate Rx only link to the OARC Digital Bridge text/html 2023-07-05T17:47:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/persistent_sound_interface?rev=1688579266&do=diff Persistent Sound Interfaces in Linux If you've got several sound interfaces in Linux it can be useful to give them persistent names. I'm using identical sound interfaces which don't have a unique identifier of any description, so instead I can assign them names depending on which text/html 2024-07-11T14:33:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pi-star-dapnet-pocsag?rev=1720708404&do=diff DAPNET – POCSAG Setup on MMDVM Pi-Star Requesting DAPNET Credentials To get setup on the DAPNET / POCSAG pager network you’ll need to raise a ticket to be added to the network/database as an account. Most information can be found the main DAPNET website text/html 2022-03-07T21:07:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pinight?rev=1646687234&do=diff Raspberry Pi Night Goal Bring together users, potential buyers and those interested in Raspberry Pi's via a community night event to learn and share about the uses of Pi's in our hobby [and more generally] Date and time Thursday 14 April 2022 20:00 text/html 2025-11-30T10:12:13+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pi_software?rev=1764497533&do=diff Raspberry Pi Compatible Ham Radio Software Packages Available in Raspberry Pi Repos Below is a list of packages maintained in Debian that have been pulled through to Ubuntu, Mint and Raspberry Pi OS. The linked packages starting with `hamradio-` are called metapackages, installing that will install everything below - unfortunately this doesn't work in Raspberry Pi text/html 2025-02-28T21:09:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pi_star_hotspot?rev=1740776974&do=diff A quick guide to setting up your pi-star as a DMR hotspot. This guide is badly out-of-date. The current recommended hotspot software is WPSD, available at https://w0chp.radio/wpsd/ I recommend that you connect your pi-star using an Ethernet cable as I have had it disconnect from WiFi and need a power cycle to re-connect it. text/html 2024-09-06T20:52:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/pl2303?rev=1725655949&do=diff PL2303 That pesky Prolific driver needs replacing with an old one. Here it is. text/html 2023-01-05T20:40:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/polycom_setup_usage?rev=1672951211&do=diff The OARC PBX has been retired. This page remains for posterity Polycom Phones Instructions on setting up compatible Polycom IP Phones Polycom VVX 450 The VVX 450 is one of the current offerings from Polycom, featuring a colour screen, 12 line keys and support for low bandwidth and high quality codecs such as G722 and Opus. They can be purchased as cheaply as £30 on EBay if you get lucky at auction time. text/html 2025-11-20T11:32:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/propagation?rev=1763638353&do=diff Propagation Some propagation prediction / modelling tools: * HF Propagation Prediction * Short-Path Propagation from UK * High-Frequency (HF) Propagation Prediction software * Propquest * Spotty - live mapping of PSK Reporter data * <https://ft8.live/> - live mapping of PSK Reporter data * Live raw PSK Reporter data * Hey what’s that contains a frequency-aware path profiler * DXView nice visualisation of current activity (rather than propagation) text/html 2025-03-15T19:53:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/publink?rev=1742068416&do=diff Rubber Duck Link Click to Join This page will be updated each Pub Meet with Zoom link after 7pm, and removed after midnight. * If Zoom link is showing as Youtube link (hover over), it's not ready, so check back later on Day of Pub Meet * Zoom Link Sync Tube Link text/html 2022-11-16T14:45:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/qo100bom?rev=1668609905&do=diff Austere QO-100 Bill of Materials and Plan TL;DR I want to work QO-100 but I don't know if I want to work it and I'm done, or if I want a permanent QO-100 station. So, I want a plan to build my QO-100 in an Agile fashion, based on my interest and time. text/html 2024-01-14T00:16:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/qsosamples?rev=1705191410&do=diff QSO Samples VHF/UHF Voice * To follow HF Voice * To follow Morse / Worked All OARC * WAOARC Sample CW Contacts External Links * Essex Hams Amateur Radio Resources & Downloads - HF QSO Script & VHF QSO Script under Training Material section Other Languages * Nordic HF QSOs - Rubber Stamp QSO Samples in Nordic Languages. text/html 2022-12-03T20:00:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/radioaccessibility?rev=1670097634&do=diff Radio Accessibility FAQ * I have a disability, can I get a licence? * Yes. There is nothing to stop someone with a disability getting a Amateur Radio licence. * In the UK during exams, if requested in advance (via RSGB) you can have someone to help with the questions (eg read them), but you must still answer. text/html 2023-01-15T17:29:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rallies?rev=1673803776&do=diff UK Rallies 2022 January February * RadioActive Fair, Nantwich, Cheshire - RadioActive Fair - Sunday 20th February 2022 September * National Hamfest - TBC 2023 February * RadioActive Fair, Nantwich, Cheshire - RadioActive Fair - Date TBD February 2023 March * Lagan Valley Amateur Radio Society Annual Rally - The Village Centre, 7 Ballynahinch Road, Royal Hillsborough, Co. Down, BT26 6AR, Northern Ireland text/html 2025-06-08T19:30:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/raspberry_pi_igate?rev=1749411059&do=diff Raspberry Pi iGate Setup Assumptions * You are running this on a Raspberry Pi with built-in WiFi * Running Raspberry OS Lite 32 Bit (Bullseye 2022-09-22). * DireWolf DEVELOPMENT version 1.7 E (Jan 7 2023) * This system will run headless, without a monitor or external display connected. text/html 2024-07-31T17:11:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/real_antenna_plots?rev=1722445885&do=diff Real Antenna Plots This page holds a list of SWR plots taken in situ at various locations. You can use the template below to add your setup * Template to follow <- This will make your life easier ;-) * Comet CWA1000 text/html 2023-02-20T18:09:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/real_antenna_plots_rap_template?rev=1676916558&do=diff Antenna makexAntenna configuration (Horizontal, V, L, Sloper)xHeight over ground in meters x Is there anything between antenna and the ground x Coax makexCoax length in metersxDate20230219 Antenna Design SWR Plots Picture of the setup text/html 2022-07-31T14:32:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/referencelibrary?rev=1659277935&do=diff Reference Library This page is for Reference of amateur radio documents which can help with information on callsigns and social history of amateur radio. Due to copyright this page is to point to you who has copies and for reference only. If you want your own copies of items like the T&R Bulletin/Radcom the copyright is owned by the RSGB and you will have to go to the * text/html 2022-09-17T19:07:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/repeaters?rev=1663441647&do=diff Members Repeaters * Maps of up to 5 repeaters heard by each member * Please currently only list 2m & 70cm analogue (including dual mode) repeaters * Check if repeaters already listed, and if so add to heard list Icons text/html 2025-02-06T12:38:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/repsandleads?rev=1738845504&do=diff The OARC is a community run by its community.We do not have a traditional committee but rather individuals who propose ideas for which they have a passion to lead. The following directory provides a list of contact details for each activity currently underway. To contact an individual send them a message on Discord! text/html 2025-07-28T20:44:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rpi-watchdog?rev=1753735484&do=diff Raspberry Pi Watchdog The Watchdog feature of the Raspberry Pi is both under-rated and under-publicised. As this website explains, Watchdog can be used to automatically restart your Raspberry Pi in the event of a system error that otherwise bricks the device. It takes <5 mins to install and enable Watchdog, and particularly for remote RPis, you could find it saves the day. text/html 2026-02-08T13:13:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rs928ampreview?rev=1770556439&do=diff RS-928 HF amplifier review Background About a year ago I wanted an SDR transceiver and didn't really take to the user interfaces on any of the “black box” SDRs, so started to think about PC-based SDRs. The performance of a Flex or Anan would have been wasted for the odd rag chew on my backyard antenna system, I needed something Linux based and wanted something with a bit of potential for tinkering-with so I settled on a Hermes Lite 2. text/html 2023-10-14T15:48:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rsgbconvention23?rev=1697298535&do=diff RSGB Convention 2023 Live Stream Link LIve Stream text/html 2023-02-22T21:24:02+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rtl_sdr_aprs_igate?rev=1677101042&do=diff Creating an APRS iGate with an RTL-SDR and Dire Wolf This is not finished yet, don't use! It's possible to create an APRS iGate using a relatively cheap RTL-SDR “dongle”. As is common with SDRs they don't perform quite as well as a real radio, but they're a versatile tool that's worth having in the shack. text/html 2024-01-06T18:19:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/rubberduckpub?rev=1704565144&do=diff Next Event Next Pub Meet: 1st and 3rd Saturday of the month. Subject to change but check the #rubber-duck-pub channel for info. Typically starting at 8pm (UK local) until Late Click here to Join the Discord Server Link for Pub Meet At Online ARC we like to let out hair down regularly and due to distance and the pandemic we've setup our own Virtual Pub nights. You can choose to drink alcoholic (beer, wine, cocktails, spirits, etc) or non alcoholic drinks (tea, coffee, hot chocolate, fizzy dr… text/html 2023-03-03T23:10:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sandboxes0?rev=1677885003&do=diff Sandboxes moved to new page, link below Sandboxes text/html 2024-03-17T19:40:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sdrswitch?rev=1710704435&do=diff SDR TX/RX Switch Review Introduction For anyone using a HF rig and an SDR, or just two HF radios and wants to share the antenna so that you can listen on both, I thoroughly recommend one of these SDR TX/RX Switches. This is an alternative to the MFJ1708B-SDR, but at a much more acceptable price text/html 2022-03-02T18:41:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sdr_setup?rev=1646246504&do=diff Setting up SDR++ On this page we will discuss the installation of SDR++ SDR++ is software that will allow us to control the RTL-SDR device after the drivers have been installed. Using SDR++ We can receive and decode signals from the sdr dongle itself text/html 2022-03-02T18:39:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sdr_tech_project?rev=1646246374&do=diff SDR Tech Project This is an index for the upcoming SDR tech project. All tutorials and guides will be here sdr++ setup Weather Fax Tutorial and capture Content to follow shortly text/html 2025-06-15T21:31:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/selfeducation?rev=1750023076&do=diff Self Education Expanding your knowledge One of the fundamental concepts of Amateur Radio is the expansion of knowledge through self education. Having a broad knowledge of most topics is fairly typically but most people are interested in specific topics and delve into those subjects to get a better understanding and be able to do more. text/html 2023-08-17T18:50:00+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sending-wefax?rev=1692298200&do=diff Sending WEFAX transmissions with FLDigi Introduction One of my favourite things in amateur radio is to work modes that are quite niche. This was especially the case after I had made my custom audio interface PCB for use with my 2M and HF rigs. I had lots of fun sending all sorts of beeps and boops over it. This came during a period when there was lots of experimentation in OARC with lots of different modes that people had never used before, as well as coinciding with the appearance at the time… text/html 2025-01-28T15:30:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/serversupport?rev=1738078252&do=diff Server Support Team Recruitment, Responsibilities, and Dismissal Status: draft, alongside proposed new organisational framework. Supported systems section captures current reality. The Server Support Team (SST) play a crucial role in upholding the values and functionality of the OARC community. This section outlines how SST members are selected, what is expected of them, and how dismissals are handled to ensure transparency and accountability. text/html 2021-03-14T16:36:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sip-network?rev=1615739816&do=diff Name Name Call Sign Ext lanM6WHH 4020 Andy2E0VNX / M7VNX4321CiemonG0TRT4008 & 5008Duncan2E0GQC4666 text/html 2023-05-21T18:38:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/software_building?rev=1684694313&do=diff PLEASE NOTE THAT THIS PAGE IS A WORK IN PROGRESS Building Software from Source Code Abstract How to use commonly accepted methods for building software from source code. This software may be from a developer's tar.gz (tarball) download, from github.com or other git repositories such as SourceForge or Gitlab. Other source code repository types also exist but are largely no longer used in favor of git. text/html 2023-01-11T00:32:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/soldering_resources?rev=1673397146&do=diff Soldering Beginner Videos * EEVblog #180 - Soldering Tutorial Part 1 - Tools * EEVblog #183 - Soldering Tutorial Part 2 * EEVblog #186 - Soldering Tutorial Part 3 - Surface Mount * Basic Soldering Lessons 1 - 9 - PACE World Wide * bigclivedotcom - Soldering basics and choosing a cheap soldering iron * bigclivedotcom - Cheapest way to learn to solder Soldering Beginner Writeups * [Soldering is easy - Here's How to Do It] text/html 2023-12-28T20:32:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sota-packet-node?rev=1703795529&do=diff Automated SOTA Packet Node - This is unfinished! Introduction Lots of folk run packet radio nodes on a Raspberry Pi, but not many use them as portable/deployable packet radio devices. A friend and I have experimented with this, making relays from hill to hill so that I could connect to stations I couldn't usually reach, with computers connected to a pair of text/html 2024-01-31T01:01:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sotabypublictransport?rev=1706662889&do=diff SOTA by Public Transport SOTA - Summits On The Air - is a popular activity scheme enjoyed by radio amateurs globally. The Summits are high points identified by the scheme, usually requiring some effort to get to, and often set in a rugged, sometimes remote natural landscape. The challenge is to reach a selected summit location and to use radio to communicate with other amateurs. This takes a combination of planning, expertise & technique, and a measure of determination, to achieve. Working … text/html 2025-04-03T20:16:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sotapersonalequipment?rev=1743711419&do=diff Back to the main page | Back to What Should I Take Essential Outdoor Gear for xOTA and Portable Activations xOTA activities like SOTA (Summits on the Air), POTA (Parks on the Air), and literally any other outdoor radio award or activation-based activity combine the thrill of radio communication with the adventure of being outdoors. Whether you're hiking up a mountain or activating a park, it's essential to be prepared with the right gear—not just for the radio side of things, but also for yo… text/html 2024-08-12T13:54:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/spotbot?rev=1723470868&do=diff OARC Spot Bot To automatically spot live OARC members on POTA activations (and SOTA in the future) or live pings on the RBN, the channel utilises the Discord “pota_bot” developed here: cwhelchel/pota_bot In order to have your operations spotted in the #oarc-spot-bot channel please send a message to @pota-spots-mgr from any channel in the Discord, and ask to be added to the list; one of the managers will llet you know when it's complete. text/html 2023-04-06T12:27:39+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/sstv_basics?rev=1680784059&do=diff SSTV Basics Introduction SSTV is an umbrella term for a variety of image modes that work by converting a picture into sound and transmitting it over the radio. As the sound is separate from the radio, any SSTV mode can be transmitted over any radio modulation with enough bandwidth. text/html 2025-10-25T01:08:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/start?rev=1761354525&do=diff Online Amateur Radio Community Wiki You can join the Online Amateur Radio Community Discord Server at www.oarc.uk/join Welcome to the Online Amateur Radio Community Wiki. We are a UK online based community, here to have fun and experiment with and provide training on amateur radio – An Amateur Radio ( text/html 2023-04-22T19:01:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/start_ninotnc?rev=1682190087&do=diff relocated to start_ninotnc text/html 2021-05-14T20:21:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/successes?rev=1621023715&do=diff Success Blog May 2021 * 14/05/2021 AGM & Community Night (20+ members attended via Zoom) text/html 2025-11-30T10:10:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/svxlink?rev=1764497427&do=diff SVXLink The current role of Svxlink, is as a single and complete package of softwares providing connectivity between amateur radio users and nodes in the following ways: 1. A duplex and simplex repeater controller, based upon the small size factor computers such as the raspberry pi, using as few external components as possible. A Raspberry Pi and 16 Gb SDCard and a CM108 text/html 2023-06-03T18:36:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/syntax?rev=1685817385&do=diff Formatting Syntax DokuWiki supports some simple markup language, which tries to make the datafiles to be as readable as possible. This page contains all possible syntax you may use when editing the pages. Simply have a look at the source of this page by pressing text/html 2022-11-30T21:25:24+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/toms-packet-scratchpad?rev=1669843524&do=diff Tom's packet radio scratchpad This is Tom's scratchpad and hopefully evolve into: * How to build a standalone packet node * What you can do with it * How you can get it talking to other packet systems * Interlinking with high-bandwidth private IP networks like hamwan text/html 2025-12-02T23:02:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/training?rev=1764716537&do=diff Training Online Amateur Radio Community Training Links * OARC Foundation <https://www.oarc.uk/foundation> * OARC Intermediate<https://www.oarc.uk/intermediate> * OARC Full<https://www.oarc.uk/full> * OARC Open Study Group - Note: This is informal group, & doesn't have page on main website * UK Exams from Overseas To Apply for OARC Courses Join our Discord page text/html 2025-12-28T23:29:30+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/uk-band-limits?rev=1766964570&do=diff Amateur Radio Band Limits and Licence Level Permissions Note: This is intended as a reference for comparison between the UK Amateur Radio Licence levels, and should not be relied upon as an authoritative source. The information has been extracted from the licence parameters tables in OFW611 - Amateur Radio Wireless Telegraphy Licence Conditions Booklet, available at the links below, published 21 February 2024. text/html 2026-03-30T14:52:09+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/uk-callsigns?rev=1774882329&do=diff UK Callsigns These prefixes are used for UK and Crown Dependency (CD) amateur call signs, unless otherwise stated suffixes may be one, two or three characters in length: * Foundation M3, M6, M7 + three character suffix * Intermediate 2#0, 2#1, M8, M9 + three letter suffix, two letter suffix 2#0/2#1 calls were issued in 2018-19 text/html 2026-03-30T15:58:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/uk-licence-archive?rev=1774886288&do=diff UK Amateur Radio Licence Archive 21 Feb 2024 [ Amateur Radio Wireless Telegraphy Licence Conditions Booklet OFW611] [ Amateur Radio Sample Licence] [ Notice of Coordination Procedures] [ General notice of decision to vary amateur radio licences ] [ Harmonised Amateur Radio Examination Certificate (HAREC) issued 2024] 2021 * [ 18 May 2021 Licence Terms and Conditions] * Addition of Section 3 - Conditions relating to Electromagnetic Fields (EMF) Compliance 2018 * [ IR 2028 Amateur… text/html 2024-05-28T22:25:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/uk-licence-archive_becoming?rev=1716935121&do=diff Becoming a Radio Amateur In Amateur Radio we are constantly looking for interesting ways to appeal to those outwith the hobby, to encourage new blood to join our ranks. While nowadays this may be achieved through a well presented Tiktok video or a well planned outreach endeavour, in times past things were a little more text/html 2025-06-08T21:13:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/usefullinks?rev=1749417236&do=diff Organisations * Radio Society of Great Britain * International Amateur Radio Union * AMSAT-UK Operating Through Amateur Radio Satellites. * RAYNET-UK Is the UK’s National Voluntary Communications Service Provided for the Community by Licensed Radio Amateurs. * UK Microwave group UK Amateur Radio Microwave Group. * British Amateur Television Club. * GQRP Club Low Power Operation. text/html 2025-04-27T19:56:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/using_sdr?rev=1745783788&do=diff How to use WebSDR sites This page is intended to serve as a basic guide for using 'WebSDR' to listen to radio activity in your web browser. If you want to learn how to setup your own SDR, click here. What is SDR? An example of a spectrogram 'waterfall' showing a section of the 2m band. The left most column is a strong signal of someone speaking using FM, with other transmissions to the right of it. Different sorts of transmissions (or interference) appear differently and you can learn to dif… text/html 2023-06-04T01:00:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vectorial_drawings?rev=1685840423&do=diff Vectorial Drawings Amateur Radio Logo I tried to recreate the Ham Radio logo in vector format so that it does not lose its quality when it is scaled up or down. I tried to put “OARC” inside the logo. SOTA Drawing Just an Idea. OA-R-C If OARC is a circuit text/html 2021-08-14T18:15:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfsatellite-gallery?rev=1628964915&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery OARC reception gallery If you're adding entries please add the start time of the pass, or for composites feel free to specify a time range. APT Captures Capture Date Time(s) (UTC) Callsign/Name Notes <https://ibb.co/QvKHgWT> 21/07/2021 text/html 2021-08-14T18:15:04+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfsatellite-general?rev=1628964904&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery General tips/data for APT and LRPT decoding Frequency list NOAA-15: 137.6200 MHz | NOAA-18: 137.9125 MHz | NOAA-19: 137.1000 MHz | Meteor M-N2: 137.1000 MHz Obviously for those of you wanting to do LRPT as well you will have to deal with the overlap and shared frequency of NOAA 19. This is always irritating and there isn't much you can do. An APT signal will destroy a digital LRPT signal, and if you try decoding APT with LR… text/html 2022-05-08T01:40:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfsatellite-sw?rev=1651974036&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery Software overview + tips SDR Receiver software Honestly, it doesn’t really matter what software you use as long as it can pipe out audio to a virtual cable or record the audio or baseband for use later (for APT be sure to resample recordings to 11,025 kHz with your software of choice - see below). For LRPT you may wish to use SDR# as the plugin and setup is well-supported, but it can be difficult to get set up right. Alterna… text/html 2021-08-24T18:13:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfwxsatellitetips-activitynight?rev=1629828825&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery The OARC VHF Satellite Activity Night! Eastern Atlantic, Ireland, and the British Isles imaged by NOAA 15, 23/08/21, 1912 UTC - Mark MM3IIG Seen the images and thought it looked fun? Want to try out a shonky antenna you’ve made to see if it’s any good? Want to try and do something a bit more advanced that we didn’t tell you about during the talk like telemetry data and other science sensors? Introducing… the OARC VHF Satell… text/html 2022-05-22T22:28:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfwxsatellitetips-antenna?rev=1653258507&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery Antenna considerations + links to projects V dipoles (Will add links to some good quality construction plans/ideas here.) Easy to make, scope for modest improvements, but annoyingly low gain at times. You may have to tilt your antenna from side to side (so not facing straight up) to aim the pattern at a satellite. Try to visualise the waves coming out from the satellite, but also that you’re not directly underneath it and o… text/html 2021-08-14T23:43:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfwxsatellitetips-hw?rev=1628984592&do=diff Front Page | Antennas | Hardware | Software | General Tips | Gallery Hardware Overview Radios It is entirely possible to do this with just an RTL-SDR dongle and nothing else. You may struggle with LRPT a bit, but APT is a doddle. Sometimes the dongles are a little lacking in gain for LRPT unless it’s a really good pass. text/html 2022-05-08T01:39:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhfwxsatellitetips?rev=1651973971&do=diff OARC VHF Weather Satellite Reception Tips & Tricks Meteor-M2 LRPT capture of the Eastern Atlantic and the U.K. & Ireland - MM3IIG This is the home of what will hopefully become a useful club resource for people wanting to do some VHF satellite reception of either NOAA APT signals or the LRPT signal from the Russian meteor satellites. There’s no need to reinvent the wheel as plenty has been written before on this subject. Instead there will be links to other places around the Internet, but als… text/html 2025-04-27T20:42:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vhf_uhf_beginners?rev=1745786535&do=diff VHF/UHF for beginners (WIP) This page is intended as a guide for absolute beginners to amateur radio to help them get acquainted with using VHF/UHF radios as a cheap entry point into the hobby. It isn't an exhaustive guide, it simply explains some of the basics of how to get started yourself and what some of the terminology you might hear means. text/html 2023-01-03T21:46:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/virtual_packet?rev=1672782409&do=diff A place holder text/html 2023-01-03T21:50:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/virtual_packet_environment?rev=1672782619&do=diff A place holder text/html 2024-06-30T14:06:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/vlf?rev=1719756382&do=diff Introduction Although there are no ham bands for VLF, there are VLF transmissions that hams can receive. This page is about how to receive the transmissions from the Alexanderson transmitter at Grimeton in Sweden, sent on Alexanderson Day (Sunday closest to the last day of June) and Christmas Eve (24 December) every year. text/html 2024-08-13T22:28:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/waoarc2024?rev=1723588128&do=diff Worked All OARC Nets EMF Camp net #001 Saturday 1st June 2024from 7pm on * On EMF Camp site using the DMR 70cm Repeater GB7NQ (Time Slot 2) * Net Hosts - Paul G1ZQN, Havoc 2E0EMO, may also use G1EMF callsign * ECHQ Services * GB7NQ * via OARC Bridge modes below text/html 2025-08-27T22:20:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/waoarc2025?rev=1756333255&do=diff Worked All OARC 2025 - 5th Anniversary Edition The aim is to get people on the radio and have fun. This year WAOARC will be themed around building radio related projects and Short Wave Listeners. Start Date 01st June 2025 - End Date 31st August 2025 text/html 2023-06-14T14:41:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/weatherstations?rev=1686753681&do=diff Weather Stations A lot of radio amateurs are interested in meteorology, not only whether it will be sunny or rain today, but also whether the atmospheric conditions will enhance or degrade radio communications. This also leads onto space weather and how that can effect on global communications. This page is about the measurement of met conditions associated with our local environment, and how the data can be used for historical reference, used on the Web, and how it can be shared via amateur ra… text/html 2025-03-18T21:00:10+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/websdr?rev=1742331610&do=diff Web SDRs A list of UK based WebSDRs for your perusal. If you are new and would like to know how to listen to amateur radio on a WebSDR site, click here. North West England Hack Green, Nantwich Nantwich Secret Nuclear Bunker, formerly R.A.F. Hack Green HF: text/html 2022-06-06T16:26:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/whatamateurradio?rev=1654532792&do=diff What is Amateur Radio RSGB Quote Amateur radio is a popular technical hobby and volunteer public service that uses designated radio frequencies for the non-commercial exchange of messages, wireless experimentation, self-training, and emergency communications. text/html 2023-12-19T09:17:55+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/winlink?rev=1702977475&do=diff Winlink Winlink Global Radio Email®️ “...is a network of amateur radio and authorised government stations that provide worldwide radio email using radio pathways where the internet is not present. The system is built, operated and administered entirely by licensed Radio Amateur volunteers. It supports email with attachments, position reporting, weather and information bulletins, and is well-known for its role in interoperable emergency and disaster relief communications. It is capable of operat… text/html 2022-07-02T20:40:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/workedalloarc?rev=1656794427&do=diff Worked All OARC tl;dr A fun contest for all OARC members, to encourage contract between community members. Work as many OARC members as you can, by any means, over June, July & August. Get out there, promote OARC and have fun playing radio. If you have a QSO with another member, then log it here: text/html 2023-03-23T21:24:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/working_p_first_activation?rev=1679606646&do=diff Working/P, making my first SOTA activation and operating HF. On a Saturday morning in early March, I had to ferry my son to Brighton and return to home, which, with a small diversion, brought me near Ditchling Beacon, a SOTA summit at 248m ASL, so I decided to seize the opportunity for some fresh air and altitude. Working on 2m & 70cm, I’m always up for some height assistance, and the view from the Beacon is usually spectacular. text/html 2022-12-24T13:36:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/xmas-elarc-portable-day-2022?rev=1671889004&do=diff SOTA / POTA Day Thursday 29th December 2022 Intro The East Leinster ARC in EI land is planning another 4 Summits (might be just 3, we'll see what happens) on 4m between Christmas and New Year's Day. The summits will be on the east coast of Ireland in Wicklow and/or Cooley Mountains. So QSO's into GW and northeast G will be highly probable, especially on 4m. The primary event date is Thursday 29th Dec. with Friday 30th as an alternate date. The weather will be the main factor. We'll post an u… text/html 2023-01-05T20:40:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/yealink_setup_usage?rev=1672951218&do=diff The OARC PBX has been retired. This page remains for posterity Yealink Phones Instructions on setting up compatible Yealink IP Phones Yealink T4XG The Yealink T4XG series is no longer in production but it still a functional and fairly up to date phone that can be picked up cheaply on EBay. They're highly flexible, configurable but lack support for modern codecs such as Opus. text/html 2023-10-14T15:47:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/youtube?rev=1697298434&do=diff YouTube Video Below is a list of YouTube channels and Most Popular video for each from a list started by Kim @_M0JJF on this Tweet. Ham Radio Clubs, Societies & Groups * Radio Society of Great Britain * Amateur radio - a 21st Century hobby * RSGB Convention 2023 - Videos from the 2023 Convention * Online Amateur Radio Community OARC * FT8 on Raspberry Pi & Cloudlog * ARRL American Radio Relay League