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

[skristof at etczone.com]

For me, unfortunately, no. 

Steve AI9IN

On 2019-04-30 1:55 pm, Eric Skoog via AMSAT-BB wrote:

> 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 at 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 
> 
> On Tue, Apr 30, 2019 at 1:20 PM AI9IN via AMSAT-BB <amsat-bb at 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 at amsat.org> wrote:
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Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
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AMSAT-NA.
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_______________________________________________
Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership.
Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite
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Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb