Tomas OK2PNQ provides an update on the PSK31 transponders carried by the CubeSats PSAT (NO-83) and BRICsat (NO-84).
I am from the group, which have built the PSK transponders. The PSAT is working fine and the TLE from AMSAT works for the predictions. The receiver is a bit deaf probably due to the mistuning of the receiving antenna, so please use the power, which is necessary to get solid copy in downlink.
To the BRICsat, the satellite has negative power budget, it is off for the long periods of time and switches on for short periods varying between 5 and 20 minutes approx. In the previous weeks we had receptions every day on one pass, but between this occasions, there was week without a beep above Europe. Any kind of positive reception reports from both sides (PSK downlink, packet downlink) are welcomed.
The most important information: The BRICSAT is leading in orbit in front of the PSAT, we are using the TLE from the ULTRASAT team from the page
and we are using ULTRASAT1=90720 as BRICsat and ULTRASAT3=90722 as PSAT.
From the receptions on omni antennas and AOS/LOS times and Doppler, those are the right elements.
Thanks for reading a bit lenghty info.
73! de Tomas OK2PNQ
PSK31 satellites https://amsat-uk.org/beginners/how-to-work-psk31-satellites/
ParkinsonSAT (PSAT) http://www.aprs.org/psat.html