[amsat-bb] Re: AO-7 Mode Switch
w7lrd at comcast.net
Thu Jun 10 11:21:09 PDT 2010
It's a very old "bucket of bolts", therefore reserves the right to be be a bit tempermental, for whatever reason.
73 Bob W7LRD
----- Original Message -----
From: "John Papay" <john at papays.com>
To: amsat-bb at amsat.org
Sent: Thursday, June 10, 2010 4:50:54 AM GMT -08:00 US/Canada Pacific
Subject: [amsat-bb] AO-7 Mode Switch
AO-7 has normally switched modes every other day
except during periods of eclipse when it stays in
Mode B. On June 8th, it was in Mode A as predicted,
however, when it was supposed to switch to Mode B
between 0200 and 0500 on June 9th, the AO-7 log reported
that it was heard in Mode B at 0407z by SP9TTX and then
was reported off on the next pass at 0600z. When it came
back on at 0800z, it was in Mode A rather than Mode B.
Then it switched back to Mode B on the 10th at the normal
time. In other words, it has skipped a day in the switching
I didn't see any eclipse event and even if there was, the
satellite would normally come back in Mode B rather than Mode
A. Is there an explanation?
john at papays.com
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