Re: [amsat-bb] Fox -1B / AO-91 in trouble?

30 Apr 2019

      Interesting ......was this the first time we’ve experienced this “feature” on AO-91?   Or anything else similar?
Eric (K1TVV)
Sent from my iPhone
...
On Apr 30, 2019, at 1:29 PM, AI9IN via AMSAT-BB amsat-bb@amsat.org wrote:
I warned you it might be me. For some reason I used the time for the
pass coming up on Friday. Maybe I need a nap.
Steve AI9IN
...
On 2019-04-30 1:25 pm, Paul Stoetzer wrote:
What time did you have for the pass?
The last pass started around 12:13 pm EDT. Next pass is around 1:48 pm.
73,
Paul, N8HM
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On Tue, Apr 30, 2019 at 1:20 PM AI9IN via AMSAT-BB amsat-bb@amsat.org wrote:
Nothing heard from AO-91 on pass over EM79 a few minutes ago. Sometimes
it's me, so if somebody else was able to transmit through the bird, go
with that.
Steve AI9IN
On 2019-04-30 1:02 pm, Burns Fisher via AMSAT-BB wrote:
...
...
I cycled the power to the IHU and it popped right back the way it should
be.
Should be fine now, but reports for the next day or two will be
appreciated.
73, Drew KO4MA
AMSAT VP Operations
-Looks much better all right.  If cycling the  IHU fixed it, that does imply
it was an IHU problem, although we could have guessed that the tx was ok,
since we were getting telemetry ok.  Since the IHU cycled ok, that implies
that it was not the program memory.  Given that we got telemetry in idle
and for a few seconds after the transponder went off, that means a lot of
stuff was ok.  I'm guessing that probably some bits got flipped in the data
for the software high pass filter, which would explain why there was trash
in what should have been the telemetry audio frequency band (below 200Hz).
73,
Burns WB1FJ
AMSAT Fox Software
On Tue, Apr 30, 2019 at 12:17 PM Andrew Glasbrenner via AMSAT-BB <
amsat-bb@amsat.org> wrote:

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Re: [amsat-bb] Fox -1B / AO-91 in trouble?

Eric Skoog