I've even used larger pots like from 1000 to 5000 ohms. You will only use a
portion of the rotation but it will allow you to demonstrate the meter and
assonated electronics are working.
Julio, W4HY
----- Original Message -----
From: "Dale Martin" <kg5u@hal-pc.org>
To: <towertalk@contesting.com>
Sent: Monday, August 30, 2004 10:30 PM
Subject: RE: [TowerTalk] Ham IV rotor
>
> >
> >
> > Fellow Tower Talkians:
> >
> > Many many, thanks to all of you who have offered suggestions.
> >
> > From your suggestions I may have isolated the problem to the rotor
> > control box (I hope) so I don't have to go rent a scisors lift and crank
> > down my TriEx WT51. Now to get out the trusty DMM and check the box.
> >
> > The rotor rotates fine, and the brake release releases as it should.
> > Just the rotor box indicator needle goes crazy back and forth. Just got
> > through testing it Monday evening (again) with the help of my XYL
> > Cheryl, WY5H who hit the brake release and then the CW and CCW levers
> > separately as I was talking her through it on 2 meters.
> >
> > Tom, WW5L
> >
>
>
> Dig into your parts bins and find a 500-ohm (linear taper is best) pot and
> put it across the appropriate control box terminals (after disconnecting
the
> rotator pot wires, of course)? If you still get meter swings, that should
> verify the problem is internal to the box and not the control cable or
> rotator.
>
> 73,
> dale, kg5u
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|