2021-04-19, 22:43:32
The software Packet-Radio TNC http://uz7.ho.ua/packetradio.htm
http://uz7.ho.ua/modem_beta/user_guide_v105_EN.pdf
Years ago, it was fun to tinker with packet radio, I liked 300 baud on 80m, I had many qso's keyboard to keyboard, and the great thing about AX.25 is forward error correction or FEC. This means that what you send is retried till the checksum matches and your message is correct and complete. Gene VE3IJD had a packet BBS at his qth in Keady, we were on 2 meters so 1200 baud was used, and the system had a 9600 baud UHF link to Barrie VE3LSR via Bon VY2NX's place in Woodford. It brings back some fond memories.
At the time I had a Kantronics KAM dual port TNC which means I could use an HF rig and an VHF rig at the same time... it could even digipeat from one band to the other and it had a built in mailbox so others could leave messages. 144.390 simplex on vhf.
https://privat.bahnhof.se/wb758759/
Soundmodem
[*]AFSK 300, 600, 1200, 2400 bps
[*](D)BPSK 300, 600, 1200, 2400 bps
[*](D)QPSK 2400, 3600, 4800 bps
[*](D)8PSK 4800 bps
High-Speed Soundmodem
[*]G3RUH 4800, 9600, 19200 bps
[*]Manchester 1200, 2400, 3600, 7200 bps
[*]HAPN 4800 bps
[*]GOMX-1/3, Mobitex-NX (BeeSAT-2/4), AAUSAT-4, LilacSat-2 decoders
http://uz7.ho.ua/modem_beta/user_guide_v105_EN.pdf
Years ago, it was fun to tinker with packet radio, I liked 300 baud on 80m, I had many qso's keyboard to keyboard, and the great thing about AX.25 is forward error correction or FEC. This means that what you send is retried till the checksum matches and your message is correct and complete. Gene VE3IJD had a packet BBS at his qth in Keady, we were on 2 meters so 1200 baud was used, and the system had a 9600 baud UHF link to Barrie VE3LSR via Bon VY2NX's place in Woodford. It brings back some fond memories.
At the time I had a Kantronics KAM dual port TNC which means I could use an HF rig and an VHF rig at the same time... it could even digipeat from one band to the other and it had a built in mailbox so others could leave messages. 144.390 simplex on vhf.
https://privat.bahnhof.se/wb758759/
Soundmodem
[*]AFSK 300, 600, 1200, 2400 bps
[*](D)BPSK 300, 600, 1200, 2400 bps
[*](D)QPSK 2400, 3600, 4800 bps
[*](D)8PSK 4800 bps
High-Speed Soundmodem
[*]G3RUH 4800, 9600, 19200 bps
[*]Manchester 1200, 2400, 3600, 7200 bps
[*]HAPN 4800 bps
[*]GOMX-1/3, Mobitex-NX (BeeSAT-2/4), AAUSAT-4, LilacSat-2 decoders