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First Pass on the Transponder



AOS = 0710 utc 7/21/2001:

Well, I was still up on the roof re-installing the preamp in a wx-proof box
as a light mist dropped ;-)  I had decided to get the system back on-line.

Finally turned on everything at 0730 utc.  Found the beacon at 123.295.5 =>
2401.299 MHz; pretty strong so I copied a few blocks of telemetry.  Then I
went tuning for my uplink.

Called CQ at 0744:  435.628.2 Tx => 123.336.8 Rx => 2401.342 with about -29
Hz doppler.
First QSO was with JA0TOG at 0800.
Tuning I found my neighbor Mike,WL7BQM-mode LS, in contact with KO6RS,
Dave.  Then joined by WB6LLO.
Had a nice contact with them for an hour when JF1SAG, JH1NPQ, and later
VK4AFL, VR2XMT.
Went QRT at 0945 utc then collected some telemetry for awhile.

Good strong signals with the low squint.  I did find that signal was
slightly distorted when using my internal preamp turned-on in the FT-847.
Voice much clearer with it turned off, though the s-meter dropped from s-7
to s-3 on most stations {noise floor went from s-3 to s-1/2 {receiver also
quieter between words}.  I ran about 9w into the M2-436CP42 {16.5 dBic} for
an ERP of ~400w.  Heard myself with an S-2 signal.

This was my first operation on AO-40 from home {operated from WL7BQM one
night during the first xponder test}.
Tomorrow I will get the 1269/145 Tx-conv. set up {AOS = 0209 utc}.

73, Ed
FT-847, Drake, Kuhne preamp, 5-turn helix feed to a 33-inch dish on 2.4G



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