Differences

This shows you the differences between two versions of the page.

--- ei5iybpastebin [2022/07/13 18:03] – ei5iyb
+++ ei5iybpastebin [2025/03/13 18:38] (current) – ei5iyb
@@ Line 148: / Line 148: @@
 The Icom 251 and the 211  are pin diode switched. You could add the Bartram board that added proper relays
 Older rigs do FT8 via the mic connector and often have PTT output somewhere on the back panel
+----
+Check noise level by M0LTE
+IPO on (preamp off)
+ATT off
+RF gain max
+AGC on
+Tune to a gap, read the S meter
+----
+G5RV
+For what it’s worth the G5RV isn’t really rated that highly nowadays
+It was originally designed as a 20M antenna, people then added antenna system tuning units to the bottom of the feeder and loaded it up on other bands. There was a design of a doublet that was based upon the G5RV which attempted to improve the design for a variety of different HF bands.   An article was printed in a copy of RadCom in 1993 and was written by ZS6BKW (G0GSF).
+The other problem with the G5RV is that people change the design and call their antennas a "half size" or "double" G5RV when really what they've made is a doublet fed with open wire feeder.
+----
+Letter to captain of the vessel at sea
+"I would be attempting to make contact with other licensed amateur radio operators. A typical contact would involve exchanging callsigns, names, locations, reports on the quality and strength of the signals, information about the equipment and antennas in use, and perhaps a brief chat about some inconsequential topic such as the weather."
+"Amateur radio is a heavily regulated technical hobby - broadcasting of music or other programming such as you would hear on a standard radio station such as BBC is not permitted, and controversial topics such as politics and religion are not discussed"
+The captain is responsible for any transmissions made from the vessel, so you need to convince them that you're not going to do anything that would reflect badly on them - hence I would go for a very upfront description like that
+{{:screenshot_2023-02-15-17-45-55-034-edit_com.discord.jpg?600|}}
+BPQ settings for HF
+<code>
+;**********  Port 1  **********
+PORT
+   PORTNUM=1                                     ; Port number
+   ID=7.052 MHz 300 bps                          ; PORTS command text
+   TYPE=ASYNC                                    ; RS232 connection
+   COMPORT=/dev/ttyACM0                          ; Serial port
+   SPEED=57600                                   ; Serial port speed
+   PROTOCOL=KISS                                 ; KISS protocol
+   KISSOPTIONS=ACKMODE                           ; KISS options for TNC
+   CHANNEL=A                                     ; TNC channel
+   MAXFRAME=2                                    ; Max outstanding frames
+   FRACK=7000                                    ; Level 2 timeout (ms)
+   RESPTIME=1000                                 ; Level 2 delayed ACK (ms)
+   RETRIES=10                                    ; Level 2 max retries
+   PACLEN=40                                     ; Max packet length (bytes)
+   TXDELAY=500                                   ; Transmit keyup delay (ms)
+   SLOTTIME=100                                  ; CMSA interval timer (ms)
+   PERSIST=64                                    ; Persistence (256/(# transmissions-1)
+   DIGIFLAG=0                                    ; Allow Digipeat on this port
+   QUALITY=191
+   MINQUAL=20
+ENDPORT
+</code>
+VHF SETUP
+;**  Port 2  **
+PORT
+   PORTNUM=2                                     ; Port number
+   ID=NinoTNC VHF 144.950 1200bps                      ; PORTS command text
+   TYPE=ASYNC                                    ; RS232 connection
+   COMPORT=/dev/ttyACM0                          ; Serial port
+   SPEED=57600                                   ; Serial port speed
+   PROTOCOL=KISS                                 ; KISS protocol
+   KISSOPTIONS=ACKMODE                    ; KISS options for TNC
+   CHANNEL=A                                     ; TNC channel
+   MAXFRAME=4                                    ; Max outstanding frames
+   FRACK=7000                                    ; Level 2 timeout (ms)
+   RESPTIME=1000                                 ; Level 2 delayed ACK (ms)
+   RETRIES=6                                    ; Level 2 max retries
+   PACLEN=250                                    ; Max packet length (bytes)
+   TXDELAY=500                                   ; Transmit keyup delay (ms)
+   SLOTTIME=100                                  ; CMSA interval timer (ms)
+   PERSIST=64                                    ; Persistence (256/(# transmissions-1)
+;   DIGIFLAG=1                                    ; Allow Digipeat on this port
+NOKEEPALIVES=1
+QUALITY=210
+KISSOPTIONS=ACKMODE
+MHEARD=Y
+MINQUAL=200
+ENDPORT
+---
+Software to program scanner
+ARC125 Windows programming and control software for Uniden UBC125XLT / AE125H / BC125AT / BC126AT scanners
+https://www.butel.nl/shop/uniden-ubc125xlt/21-arc125-software.html
+https://www.nick-bailey.co.uk/scan125/
+---
+SOTA is fairly simple arrangement. Best way to do it first time is to go with someone who's done it before. Find hill that you can climb with your ability level. Create SOTA account at https://www.sotadata.org.uk/en/. Find out if you need VHF or HF radio. You cannot use repeaters so you need direct contact. Most people seem to use VHF and have HF backup. Make sure you are safe. Weather is good and you are prepared for climb. Figure out how are you going to log contacts, paper, mobile. Charge batteries. Don't forget microphone (ask me how I know). Make a list of things you do not want to forget. Think what antenna you are going to use.
+On the day: Make sure you are safe  Take radios up the hill. Make sure general public is safe with your antenna system. Call: CQ SOTA CQ SOTA, CQ Summits on the air. Wait. Make contacts. Spot yourself on the App or ask others to spot you on the app. Get ready for a pileup. Deal with the pileup. Descend. Log activation on https://www.sotadata.org.uk/en/. Profit :D
+---
+So to complete the experiment. We were trying with @Ben - EI9IUB - IO63fj to run 9k6 IL2P at 12kHz ( @Ben - EI9IUB - IO63fj hope it was 12.5kHz ) and we had some success. 30W over 40km (with a hill in the way) with 11.7dB gain and 15m or so heliax coax. Sometimes it just worked and sometimes it was really bad. All in all marginal. DEV was nearly all the way up on NinoTNC. TXDELAY was in 3rd quarter. We were using Motorola GM360 with SQL on.
+Very happy to see you.
+GB7RDG is at 7052.75 kHz (7051.25 USB dial for NinoTNC), mode is QPSK600 IL2P+CRC.
+NET/ROM enabled, please keep nodes broadcasts short, i.e. MINQUAL set high
+GB7IOW is in its usual spot.
+C 1 !M0AAA
+The ! forces a L2 (non NET/ROM) connection
+SENDNODES to send a broadcast now -ish