23 Jul
2020
23 Jul
'20
6:15 p.m.
Hello all,
In order to evaluate antenna effectiveness in the 70cm downlink band, I'm trying to visualize the orbits of the following satellites:
AO-27 SO-50 RS-44
I can find the perigee/apogee and output power on these, and, so far, I have:
AO-27 788x801 km 1W/0.5W/0.1W SO-50 603x713 km 0.25W RS-44 1175x1511 km 5W
On the FM birds: My observed data shows that SO-50 is difficult to hear while AO-27 is booming, so I hypothesize that AO-27 is transmitting with 0.5W or 1W.
RS-44's beacon seems to be fairly weak, while CW/SSB signals on the transponder are quite strong.
Does anyone know where I might find more details on RS-44's construction such as antennas and power output for the beacon?
Thanks,
--- Zach N0ZGO EM12jw