Hopefully someone from ARISS will chime in if I am wrong, but I believe that the astronauts are only allowed to use frequencies that have been pre-approved and ground-tested for safety with the ISS subsytems.
Also, you would only have to correct for the doppler shift of the satellite you are listening/transmitting to. The ISS would have to correct for the doppler on their end.
George, KA3HSW
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Douglas Quagliana Sent: Thursday, December 21, 2017 10:53 AM Cc: AMSAT -BB Subject: Re: [amsat-bb] Has anyone made a satellite QSO with an orbiting ISSastronaut?
Friends, Having hosted an ARISS contact myself earlier this year, I am well aware of direct contacts between the astronauts and someone on the ground.
The relevant part of the question was the part about the QSO being *THROUGH an AMATEUR RADIO SATELLITE TRANSPONDER*.
If you are aware of a success (or a failed attempt) I would be interested in knowing which astronaut and which amateur radio satellite was used.
Lastly, does anyone have a technical references for correcting calculating the Doppler for a QSO from ISS through a satellite to the ground? (And no, you can't just change the tracking program's ground station latitude/longitude every second to match the ISS satellite subpoint.)
Thanks and 73, Douglas KA2UPW/5 _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb