Bob,
So far I have uploaded 276 frames of telemetry using the 9600 port of the sub-band on my IC910h. This is wired directly to the "Line-In" of my desk top computer.
I would not recommend using the "Mic-In" jack, or a laptop computer. The 9600 port is used because it offers less filtering of the 0-200 Hz of the audio band pass. This is the portion that is filtered heavily to make PL tones sub audible in the radio , as well as remove 60 Hz and its 3rd at 180 Hz from the microphone input.
BOB KO6TZ
Hi,
Congrats to the AO-85 team!
Trying to decode telemetry using the 9600 output of the sub data (while radio is in Sat mode) from my IC-910H. Has anyone been able to do this? High elevation passes only?
9600 output is connected directly to mic input. No isolation transformers, etc. Seems like those making progress have gone the SDR route with IQ data?
Sound card input - 2 channel (L-R channels connected on cable), 24 bit, 48000 Hz
radio - cable to sub band data socket. 9600 bps transmission on. (Is this for TX only, does not change output and can be left of?)
AO-85 software
Source - mic input, 4800
start --> no joy,
Suggestions welcome.
Thanks, es 73
Bob N6RFM