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Re: AO-40 Beacon


I have been using the daily passes of UO-11. Gives several chances a day. 
Using the Down Converter Local Oscillator determination from these passes, 
I was able to track AO-40 last night very close to 2401.323 (with in the 
pass band). Listened until squint was too bad for good tm. Had S9 signal 
(with S1 noise floor).

I did not realize that Dove DO-17 also had S band.  But I see, looking back 
in my notes, QST Feb 98 that there is S band at 2401.220 Mhz. I will listen 
for that today or tomorrow.  Are there others that are not listed?

Jerry, W6IHG

At 10:31 PM 7/2/01 -0500, ken durham wrote:
>Can't seem to hear the mode S middle beacon. Sun noise is easily
>heard and aiming the antenna at the computer causes an increase
>in noise, but I can't hear the DO-17 carrier or the AO-40 beacon.
>Are there any other satellite (ham or commercial) sources of a signal
>to calibrate by? I sold all my test equipment and haven't any
>way to test the converter and antenna. The converter is a modified
>Drake and the antenna is an Andrews linearly polarized. I don't
>have a pre-amp. ...Maybe this is the problem? The NF spec for the
>modified Drake is 3.0 dB. The downconverter is mounted on the
>back of the antenna with no more than 3 ft. of low loss coax.
>Ken K5MBV
>Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
>To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org

Dr. Jerry R. Pixton, PIXOS Designs LLC

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