The wires from the center of the pots LOVE to become intermittent. If you decide to open the rotator up let me or the list know and I will explain more thoroughly.
73, and Good Luck, Joe kk0sd
-----Original Message----- From: AMSAT-BB amsat-bb-bounces@amsat.org On Behalf Of Jim Walls via AMSAT-BB Sent: Saturday, October 3, 2020 4:54 PM To: amsat-bb@amsat.org Subject: Re: [amsat-bb] Yaesu G-5500 meters and readings to LVB tracker not working
On 10/03/2020 13:59, John Brier via AMSAT-BB wrote:
Hi fellow satops,
I have a Yaesu G-5500 I got used a couple years ago. In February I hooked it up for the first time on the ground with an LVB Tracker and MacDoppler.
<snip>
Sounds like the position pots in the rotor (not the controller) are dirty. That does make some sense with it not being used for several years. Step one (the easy way) is to use the manual control levers on the controller and repeatedly move the rotors from end to end while watching the needles. If you are a bit lucky, after a few passes back and forth, the needles will start responding correctly. Keep trying at least a dozen full passes back and forth before giving up on this method. The next method requires disassembly of the rotor - now you know why I suggest giving the first method lots of tries before giving up on it. If you have to resort to the second method, I will let someone who has done that more recently than I (about 20 years) give instructions.
-- 73 ------------------------------------- Jim Walls - K6CCC jim@k6ccc.org Ofc: 818-548-4804 http://members.dslextreme.com/users/k6ccc/ AMSAT Member 32537 - WSWSS Member 395
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