[amsat-bb] When are the linear transponders turned on?

Mike Lemons becalmed9 at gmail.com
Sat Apr 1 17:31:01 UTC 2017

Thanks Paul! You answered most of my questions.

The only way that I have found to do pass predictions with SatPC32 is using
WinAos. I don not see a column for illuminated or not illuminated.


On Sat, Apr 1, 2017 at 8:44 AM, Paul Stoetzer <n8hm at arrl.net> wrote:

> Except for AO-7, AO-73, EO-88, LO-87, and EO-79, all of the active linear
> transponder satellites, including FO-29. are available around the clock.
> SatPC32 will tell you if a satellite is eclipsed or not. Most other pass
> prediction software can tell you as well.
> The XW-2 satellites are all easy to work, though XW-2D has some digital
> noise in the center of the transponder that seems to make it more difficult
> than the others to work.
> 73,
> Paul, N8HM
> On Sat, Apr 1, 2017 at 10:33 AM, Mike Lemons <becalmed9 at gmail.com> wrote:
>> I know that AO-73 and EO-88 are on while in eclipse and AO-73 is usually
>> on
>> for the full weekend, UTC.
>> I often can't hear the transponders 90 minutes after sunset, though. Is
>> there some kind of delay or are they still illuminated? Is there a pass
>> predictor software that tells you when they are illuminated?
>> When is FO-29 on?
>> What about the XW-2 series? (Nobody ever seems to talk about those
>> satellites. Are they difficult to work?)
>> 73
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