16 Apr
2015
16 Apr
'15
11:05 p.m.
Hi from David EA4SG.
I send this short AO-73 SWL report hoping it could be useful to the AO-73 Command Team.
In the lasts two orbits (#7434 and #7435) over my QTH located in Colmenar Viejo (Madrid) locator IN80CP, the bird reached AOS with the transponder ON as expected, downlink signal was slightly weaker than usual, modulation was quite distorted (similar to the one we get from AO-7) and transponder switched off exactly at the expected "ilumination time" (20:31UTC and 22:08UTC).
I was also listening to the telemetry and it was affected by the above mentioned distorsion too. I didnt try, but I am sure that this distortion will make telemetry harder to be decoded.
Best 73s de David EA4SG