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

30 Apr 2019

      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 <
[email protected]> 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
-----Original Message-----
From: AMSAT-BB [email protected] On Behalf Of Andrew
Glasbrenner
via AMSAT-BB
Sent: Tuesday, April 30, 2019 8:11 AM
To: [email protected]
Subject: Re: [amsat-bb] Fox -1B / AO-91 in trouble?
My first pass is just after noon. If it hasn't self-corrected by then, I'll
try a reset.
Drew
-----Original Message-----
From: AMSAT-BB [email protected] On Behalf Of Alan via AMSAT-BB
Sent: Tuesday, April 30, 2019 3:10 AM
To: 'Hans BX2ABT' [email protected]; [email protected]
Cc: [email protected]
Subject: Re: [amsat-bb] Fox -1B / AO-91 in trouble?
Hans,
Looks like if it IDs, the signal is normal and you get the usual 2
telemetry
frames.  If the transponder has been brought up, you get the odd signal,
with a brief switch to DUV at the end, but no telemetry.  The command staff
have been notified.
73,
Alan
WA4SCA
<-----Original Message-----
<From: Hans BX2ABT [mailto:[email protected]]
<Sent: Tuesday, April 30, 2019 01:14 AM
<To: [email protected]
<Subject: Re: [amsat-bb] Fox -1B / AO-91 in trouble?
<
<Hello Alan,
<
<Then you were luckier than I was. I couldn't get anything. Let's just
<wait
and see.
<
<73 de Hans
<
<BX2ABT
<
<
<On 04/30/2019 01:34 PM, Alan wrote:
<> Hans,
<>
<> Saw your post, and was able to catch part of a pass here.  As you
described.
<>
<>
<> There were two periods where the audio switched to the normal DUV
<rumble, <> and I got 2 frames each time.
<>
<> 73,
<>
<> Alan
<> WA4SCA
<>
<>
<> <-----Original Message-----
<> <From: AMSAT-BB [mailto:[email protected]] On Behalf Of <Hans
<>
<BX2ABT via AMSAT-BB <> <Sent: Tuesday, April 30, 2019 00:05 AM <> <To:
[email protected] <> <Subject: [amsat-bb] Fox -1B / AO-91 in trouble?
<> <
<> <Just had a good pass from Fox-1B, but it seems the bird is in trouble.
<> <No telemetry and no voices heard, just weird noises. I put a screen
shot
<> <on my website: BX2ABT.com. Let's just hope a reset will cure this bird.
<> <73 de Hans (BX2ABT)
<> <
<> <_______________________________________________
<> <Sent via [email protected]. 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 <>
<program!
<> <Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
<>
<>
<>
<>

Sent via [email protected]. 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 program!
Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb

Sent via [email protected]. 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 program!
Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb

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

Burns Fisher