[amsat-bb] Re: AO-27 (TOPR?) SCHEDULE

Eric H. Christensen eric at christensenplace.us
Thu Sep 13 03:24:57 PDT 2007

I've found that AO-27 generally turns on around the same time during
each pass.  Not sure if it is coincidence (as I haven't done the math)
but give a listen and see if you hear the same thing I have been.

Eric W4OTN

Eric Fort wrote:
> I just reviewed the pass predictions for ao-27 on the amsat website.  I then
> followed the link to ao27.org.  now I'm a bit confused.  On ao27.org there
> is listed a TOPR schedule with little explanation of what TOPR is.  It
> appears however that this causes the satellite to turn on and off it's
> transponder at various times.  If this is the case how does one determine
> usable passes?  A satellite overhead without a functional transponder is
> about as useless as mammaries on a bull! It seems it could be a source of
> significant frustration if trying to work a pass only to find out the sat
> had switched itself off!
> Eric
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