https://wiki.oarc.uk/ 2026-04-13T22:17:33+00:00 https://wiki.oarc.uk/ https://wiki.oarc.uk/_media/wiki:logo.png text/html 2024-10-26T15:48:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:displayingesqlcards?rev=1729957685&do=diff Displaying eQSL Cards Electronic QSL cards are digital versions of QSL cards for confirming QSOs, with the most popular service for exchanging these being eQSL.cc. Unlike other electronic/digital means of confirming contacts, like LoTW and QRZ.com, they have a traditional postcard style, which can be customised by the sender, often including images of where they live or their shack. text/html 2025-08-24T15:00:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:g4klx-23cms-eme?rev=1756047631&do=diff The G4KLX 23cms EME Setup Background I have long wanted to start doing moonbounce, known as Earth-Moon-Earth (EME), as I felt it represented one of the most challenging parts of the hobby. It's almost at the extreme sports end of it in fact, everything has to be bigger, better, and well engineered, compared to other parts of the hobby. Having worked DX on most bands from 10m up to 3cms in my time, I needed a new challenge. text/html 2025-03-26T17:40:52+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:g4klx-qo100?rev=1743010852&do=diff G4KLX' QO-100 setup My QO-100 system started life in 2019 not long after QO-100 was launched, and during that year the system was built. My first QSO via the satellite taking place in the summer of that year. The system has been designed to be portable around the house since the best location for the dish has never been near to where the shack is located. Therefore the need for operation from 12V has not been an issue, being relatively physically portable, and with fast setup times has. text/html 2023-10-06T21:34:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:gm5alx-qo100?rev=1696628076&do=diff GM5ALX QO-100 Setup My setup uses the Pluto SDR+ as the transceiver. It's one of two common setups, the other being upconverter from a 2/70 radio. Here's the overall diagram: Also includes my estimates of the power. In operation I've found I'm at 85% in SDR console, which I think is circa 10-12W out, and I'm similar signal strength to the centre beacon. I've spoken to others with 1.2-1.8m dishes and they use 2-5W. text/html 2025-08-01T18:33:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:m0jqq_-_bpq_for_beginners?rev=1754073218&do=diff BPQ for Beginners Part of BPQ32 Config File Or “What I have learnt on my journey”... Things to check... * What s the relationship between NODESINTERVAL within the port config and SIMPLE in the config header? * Found a new command to temporarily stop ports (needs SYSOP access) <STOPPORT n> & <STARTPORT n> text/html 2025-12-28T18:59:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:quansheng-uv-k5-dc-charger-conversion?rev=1766948360&do=diff Quansheng UV-K5 13.8 V DC Charger Conversion The standard mains charger supplied with the Quansheng UV-K5 has been reported to generate significant radio-frequency interference (RFI). Although the transceiver supports USB-C charging, this method is comparatively slow and does not charge the battery beyond approximately 80 % of its nominal capacity. text/html 2024-01-13T12:22:44+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:sa0wii-icom?rev=1705148564&do=diff WIP The ICOM IC-728 has no serial port, which is of course common for older rigs. It does however expose two “ACC” ports, one of which has exposed lines for modulator input (Tx), audio frequency (Rx) and transmit control (PTT). These lines are on the ACC1 port respectively labeled MOD, AF, and /SEND. The IC-728 also exposes a serial CI-V interface, which can be driven by UART. text/html 2024-01-08T17:33:59+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:shelly1-12v-remote-relay?rev=1704735239&do=diff Shelly 1 as 12V Remote Relay A Shelly 1 is an inexpensive smart home relay, which can be configured to run and control 12V DC instead of 230V AC. It can also be flashed with Tasmota, for local integration with something like Home Assistant, or left using the stock firmware for use with its own cloud-based app. text/html 2025-08-02T15:59:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:start?rev=1754150343&do=diff Member Projects This page (and namespace) exists to showcase projects attempted / completed by members. It doesn't have to be finished, polished, or even work, but anything you accomplish (or indeed fail at!) is something other people can learn from or be inspired by. It isn't intended to be a bunch of authoritative reference material - just a place to show your stuff. text/html 2025-08-09T21:35:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:tait-cross-band-repeater?rev=1754775353&do=diff Tait Cross-Band Repeater Build For an event, I (Tom M0LTE) needed to provide a cross-band FM repeater. A cross-band repeater is a system which receives signal on one band and re-transmits it on one or more others. This is reversible, i.e. the signal can be received on either band and transmitted by the other radio. text/html 2025-03-18T18:15:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.oarc.uk/member-projects:xbox-360-psu?rev=1742321756&do=diff XBox 360 Power Supply It is possible to upcycle an inexpensive / free e-waste XBox 360 power supply into a relatively high-quality mid-capacity power supply. Positives: * Free/cheap * Seem to be low RF noise * Great for up to around 50W RF *