I am working with a HT and a hand held arrow, so it can be challenging. If I understand correctly, My packet would travel this path. ME>>>ISS>>PSAT>>ME
yes, in the sense that the first ME is a TX, the next two are
DIGIpeats and the last one is RX.
But you have to set the correct PATH callsigns in your APRS radio. That would be NA1SS,PSAT for a dual hop. NA1SS would hear it first and then transmit it via the path of PSAT which then (if it heard it amongst all the other QRM on the channel) would then digi eat it too.
Doing the dual hops in this direction (assuming they can see each other (rare) is because the chance of the ISS hearing the weak 0.25W XMTR form PSAT is very small compared to PSAT hearing the 10W signal from ISS. So a dual hop path in this direction has a 16 dB better chance than one attempted in the opposite direction. And that is Huge.
Bob, wb4APR
On Sat, Oct 10, 2020 at 4:53 PM Robert Bruninga via AMSAT-BB < [email protected]> wrote:
Robert NcHale KE6BLR has turned on PSAT for digipeating. I have no idea if it has the power budget to support it, but we will see. If the telemetry counter gets above 90 (minutes) then it is surviving eclipses See http://www.findu.com/cgi-bin/raw.cgi?call=psat,psat-1&time=1&start=1...
Have fun. Try some double hops from ISS to PSAT using the path NA1SS,PSAT
If you simply used APRSAT,APRSAT, then PSAT might digi the first hop too and then be clobbered when ISS also does it. Then the second hop will not go via PSAT beacuse by then it is a dupe.
Bob, WB4APR
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