[amsat-bb] Fox Delta ST2 interface problem

[Gus]

On 12/02/2014 02:19 PM, Tim Goodrich wrote:
> Hi All,
>
> I'm posting this here because the Fox Delta Yahoo group seems to be quite
> inactive and I haven't received any responses that might fix this problem
> yet.
>
>   
>
> On my ST2, the azimuth indication doesn't stay at one heading. Instead, if
> it should be on say 210 degrees, it will rapidly change from 207, to 223, to
> 215, to 205, etc.. Fluctuating within a 15-20 degree range.  After being in
> contact with Dinesh and having replaced the PIC and crystal, the problem
> persists.
>
>   
>
> Any ideas of what could be causing this?
>
>

Crap in the position-sensor pot?  Bad voltage regulation feeding the 
high side of the position-sensor pot? Faulty lead or connection? Does it 
get worse if you shake the lead coming out of the control head, or going 
into the rotator?

-- 
Gus 8P6SM
The Easternmost Isle