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: k...@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:
> 1. Turn HRD control of your TS2K off
> 2. Set your uplink at 145.950 CW
> 3. At AOS you should hear the beacon about 8-10 kHz above the beacon freq of
> 435.895 (about 435.904 MHz)
> 4. 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).
> 5. 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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_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
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