[amsat-bb] PO-28 SK
yokshs at sbcglobal.net
Tue Sep 19 14:03:05 PDT 2006
Thanks for the link, Pat. I have been asking for quite some time for an
update, ANY update on this bird.
Here is the post for those who may have missed it:
AMSAT-UK -- POSAT
Written by G3YJO
Monday, 18 September 2006
Following the recent kind agreement of Consórcio SAT, the owners of
PoSAT (PO28 or 1993-061D) which was launched on the Ariane V59 from Kourou
on the 26th September 1993, work has been progressing at SSTL and the
Surrey Space Centre to switch transponder frequencies to the amateur
satellite service to serve as a voice FM transponder for use by all radio
Unfortunately, recent investigations now indicate that the PoSAT
onboard NiCd batteries are showing the effects of 12 years in orbit and the
approx 100,000 charge /discharge cycles to which they have subjected and are
no longer holding sufficient charge to operate the downlinks. This may mean
that, sadly after all, it will not be possible for the satellite to be made
available for amateur use.
We fully understand the benefits that PO28 would offer radio amateurs
and work is continuing at Surrey to see if there is any way to revive this
'old lady'. Watch this space for further updates.
Martin Sweeting G3YJO
--- Original Message ---
Date: Tue, 19 Sep 2006 09:29:29 -0400 (EDT)
Subject: [amsat-bb] POSAT, PO-28
To: Amsat BB <amsat-bb at amsat.org>
To G3YJO, Martin
Regarding PO-28 and the NICAD batteries; Could the satellite operate
independant of the batteries in sunlight?
thanks, pat n2oeq
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