Hi,
The manual is your friend. The secret sauce is to adjust your uplink on the CAT menu until you can hear yourself, then save the uplink calibration. Trying to tune the radio knob caused both the uplink and downlink to change and is not how you calibrate things, but is exactly the behavior you want (manually tuning to find someone to call, and being spot on with your downlink too. I do feel sorry for the folks, hundreds (thousands?), vainly sending dots/dashes during Field Day attempting to find themselves. The secret sauce is to do that before Field Day. With the exception of AO-7 which was unusually far off, all the other dozen+ satellites were within a couple hundred hertz or less of the calibration values I use at home on my 9100 (in a fairly stable thermal environment).
Good luck, but rest assured that SatPC32 works great controlling Doppler.
73, Bob, WB4SON
On Sun, Jun 23, 2019 at 5:49 PM Bruce via AMSAT-BB amsat-bb@amsat.org wrote:
I bought a Yaesu G5500 to use during field day this year, we got tired of the arm strong rotor. This is the first time I have used SATPC32 for anything more than AOS-LOS predictions. I still moved the rotor by hand. Have not been able to get the Yaesu cable built to have the LVB tracker control the rotor. May work on that for next year.
Used the ICOM IC-9100 and a laptop this year. It worked great to set the frequency for the FM satellites but was horrible for any SSB satellite. I can find myself with the computer turned off. When I tried to use Satpc32, it would jump to somewhere in the passband and no matter how i tried to adjust the radio to find myself, satpc32 had a mind of its own. So, never made an SSB contact. Of course it is more fun to do this during field day with everyone watching.
So what is the secret for making Satpc32 see where you have found the sweet spot on the up and down link when you click CAT control instead of doing what it wants? I would have thought it would read the settings from the radio and go from there. After all, it takes me a few seconds to find myself and really easier to adjust for Doppler manually. I wanted to give the automated feature a go for those watching.
73...bruce
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Bruce Paige, KK5DO
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