I had forgotten about the RS satellites. Not sure if Wales would have been
in the footprint from where I was at in Iowa at that time. I sure miss
RS12/13. That was a great satellite to get on. Mode T worked very well.
Wish they would put another one up like it.
73s John AA5JG
----- Original Message -----
From: "i8cvs" <domenico.i8...@tin.it>
To: "John Geiger" <aa...@fidmail.com>; "AMSAT-BB" <amsat-bb@amsat.org>
Sent: Friday, December 02, 2011 9:47 PM
Subject: Re: [amsat-bb] HEO history question
----- Original Message -----
From: "John Geiger" <aa...@fidmail.com>
To: "AMSAT-BB" <amsat-bb@amsat.org>
Sent: Friday, December 02, 2011 8:58 PM
Subject: [amsat-bb] HEO history question
Back in late 1997 or early 1998 I was using a Kenwood TR9130 on 2m SSB.
One morning I was tuning from the FM to the SSB portion of the band, and
heard a station just below 146mhz. I tuned them in, and it was a station
from Wales! Obviously going thru a satellite as the 2 meter conditions
weren't that good that morning. I am now wondering what satellite it
probably was. Hearing it was enough to motivate me to eventually get
into
satellite operations-that took a few years though.
Anyways, what satellite was I probably hearing? I am guessing AO10 or
AO13 but were they operational at that time?
73s John AA5JG
Hi John, AA5JG
OSCAR-10 was launched in 1983 and it started to get problems with the
main computer in 1986
OSCAR-13 was launched in 1988 and reientered because of drag in 1996
Between 1997 or early 1998 OSCAR-10 was operating time to time with
low level signals in Mode-B, 2 meters downlink while OSCAR-13 was died.
If you are sure about the time of your reception back in late 1997 or
early
1998 I guess that probably you was hearing or OSCAR-10 or mostly RS-12
a powerful LEO satellite in Mode-KT with uplink in 15 meters and downlink
in two bands at the same time i.e.10 meters in the Mode-K and 2 meters in
Mode-T exactly from 145.907 to 145.953 MHz
BTW at that time 23 april 1996 OSCAR-10 was still well operational in
Mode-B because I have the QSL card from i8KRO for a QSO made through
two satellites OSCAR-10 and RS-12
The uplink on RS-12 for i8KRO was in 21 MHz and the uplink for me
on OSCAR-10 was in 435 MHz while the downlink for both of us was
in 145 MHz
Nice to remember !
73" de
i8CVS Domenico
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