PSK31 do RAFT ainda sem downlink aceitável

O RAFT já está programado para PSK31. Contudo, ainda não há resultados "palpáveis".

Reproduzimos aqui o comunicado de WB4APR.

RAFT lives!

Throught overnight sleepless efforts, RAFT was finally commanded into PSK-31 mode by the combined efforts of DK3WN, PA3GUO, and PE1ITR and others.

The problem has been that the RAFT command receiver is deaf when the bus voltage is over 8.1 volts. But at night in the dark, it works OK. SO here is how to work RAFT PSK-31. (we have heard no signals yet, and do not know if the HF wire antenna got deployed. So we welcome MAX power on the 28.120 USB PSK-31 uplink. Listen with FM on 145.825 downlink. It is very weak and needs a beam.

Someone in the footprint needs to bring up the PSK-31 transponder with their own TNC command on 145.825 uplink. Just send C RAFT. This connect request packet will activate the PSK-31 transponder for about 90 seconds. You will not get an ACK however.

You may TX on 28.120 USB PSK-31 with max power throughout the pass until we find out if the HF RX is working.

Oh, notice that the "C RAFT" probably will not work in the daytime since the BUS voltage is above 8.1V and so the command receiver is deaf. But you are welcome to try.

Good luck!
I am on slow dialup this weekend, so will have little comment.

Bob, Wb4APR
USNA RAFT command station.

PSK31 via RAFT

A frequência de TX do RAFT para PSK31 será 28.122 MHz e a de RX 145.825 MHz, mas estão condicionadas às frequências legais de cada país.

Segundo a AMSAT , só para Fevereiro estará activo no RAFT o modo PSK31.

Pedi ajuda ao colega Maurício do ISSFANCLUBEBRASIL.

Email de resposta:

Ainda não Fernando. Li no site da Amsat que possivelmente em Fevereiro esse modo estará activo no ANDE. Grande abraço amigo. MAURICIO BERALDO - PY4MAB