Thanks to Dave G0CER and Curt WE7U for your replies.
Dave, re using packet radio on 160m. I'll check the regulations. Local amateurs
did a trial run around the West Pennine hills last year to prove the idea. If
not we could also use 30m. Tests locally show reliable ground wave coverage out
to 13 miles using mobile equipment on 10 MHz..
Curt, I'll give some more info on the transceiver project. It uses direct FSK
modulation of the transmit carrier and phase lock loop detection of the
received FSK signal. There is no audio input or output so the use of computer
sound cards is out. My idea was to send and receive at 300 baud directly from
the serial port. The test with the OT1+ uses the direct FSK output firmware to
directly drive the transmit FSK modulator. It would be ideal if we could use
Xastir for it's messaging, igating and other properties.
73,
Chris, G4HYG
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