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

Paul Stoetzer n8hm at arrl.net
Sat Apr 1 15:44:22 UTC 2017

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.


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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