[amsat-bb] Re: AO-7 observation

Bob,

I will leave the why to the builders, but I have also noticed ripples in the passband. I can't find my notes, but at one time I walked across the AO-13 passbands, stepping around QSOs, and found some reproducible modest variations. Not as easy as it sounds, since the AGC was constantly making changes.

Alan WA4SCA