[amsat-bb] LO-78 passes.
tjschuessler at verizon.net
Sat Jul 26 05:53:34 UTC 2014
It is unpredictable, but I suspect that LituanicaSat-1, LO 78 will be on
for the morning decending (NW to SE passes on Satruday morning 7-26. In EM
12 I have a 26 degree pass starting at 1229Z. LO-78 was up for these
morning passes on Wednesday and Thursday mornings but not up on any passes
on Thursday late night (US time) or the Friday 124X Z pass for me this
morning but was on for my 0442Z here on the 26th. On Wednesday and Thursday
the only station besides myself was K8YSE/7. We never quite made it on
Wednesday but completed a QSO on Thursday morning. No one else was on the
bird. My 07-26 0442 pass saw no one else on the bird but myself.
My observations as a purely handheld (Sometimes tripod) operator are these.
The satellite is a challenge to work but provides quite nice audio
when you can.
As it decays, the pass times continue to shorten. They are now only
7 minutes. For us handheld guys, maybe 5 minutes of usable pass.
Mid pass it really trucks across the sky. Doppler shift is quite
fast as well on the 435 downlink.
Published downlink is 435.1755. I start at 435.1755 so I start at
435.185 and down.
67 Hz PL and Narrow FM at 145.95 or else keep your modulation quite
to avoid over-deviating. Doing so will cause the PL receive on the
satellite to squelch out.
Again low modulation bandwidth or talk quietly.
Repeater on board has a tail so if you hit it you will hear the tone
after you unkey.
There is even a voice and CW ID so that makes it interesting.
Satellite has hefty spin fades so that adds to the challenges.
Hope to see a few additional folks to try this before it goes away.
2713 Lake Gardens Drive
Irving, Texas 75060
n5hyp at arrl.net
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