Or he could just use FM since hardly anyone uses the SSB birds compared to the other sats.
Although I am sure there are a million reasons not to use FM. even though it works just fine on the SSB birds. The feedback I got from the FO-29 Control Team was that SSB was pretty much "the rule" or "band plan" if you will.
I may be wrong in my opinion, but I dont see why we cant use FM other than to keep usage down? I hope everyone dosent freak out, as this seems to be "Taboo"
Kevin KF7MYK
To: amsat-bb@amsat.org From: k5oe@aol.com Date: Sat, 23 Apr 2011 15:08:12 -0400 Subject: [amsat-bb] Re: FO 29 help
Ted, It sounds like you are hearing a "reflection" of your signal, not the downlink from FO-29. This is a common malady associated with 3rd harmonic interference on mode J (V/U) satellites. Try this on a pass that will reach at least 30 degrees above the horizon:
- Turn HRD control of your TS2K off
- Set your uplink at 145.950 CW
- At AOS you should hear the beacon about 8-10 kHz above the beacon freq of 435.895 (about 435.904 MHz)
- Tune your receiver to 435.850 plus that same delta from beacon (about 435.859 USB). You should be able to tune your receive and hear your CW dits (clearly).
- Zero beat the CW dits on the low side, switch to LSB and you should be exactly on frequency and can turn on TRACE and go anywhere in the passband.
If you have auto-Doppler turned on in HRD, your program should do the same thing as this manual procedure.
You should be able to hear yourself. If not, Google the diplexer fix for the harmonic problem.
From the center of the passbands, whatever the UHF Doppler shift is, the VHF Doppler will be approximately 1/3 in the opposite direction. This is a helpful rule for finding your downlink manually.
73, Jerry, K5OE
-- original message -- Good morning,
Since putting up the Elk on a rotor (fixed el +- 25 deg), I decided to try some linear birds.
I have tried FO 29 about 3x but seem to have some issues. I am using TS-2000 in SAT mode with HRD Sat program. Up: 145.9 LSB Dn: 435.8 USB
I am clearly able to track the bird with doppler as I can hear the CW beacon through the entire pass (switching back and forth). I can also TX into the bird and hear my signal coming back duplex. However, what is coming back is my voice signal but totally unintelligible. Also, I have heard no other stations on these passes.
Am I doing something wrong?
Tnx for any help
Ted, K7TRK
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