[amsat-bb] Yaesu G-5500 meters and readings to LVB tracker not working

[Jim Walls]

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 at k6ccc.org
Ofc:  818-548-4804
http://members.dslextreme.com/users/k6ccc/
AMSAT Member 32537 - WSWSS Member 395