Sounds like your meter has static. (On the plastic faceplate)
Try cleaning the face with some Windex and a paper towel.
Just don't rub to hard. Let the meter face dry off by itself after you have
wiped the excess off.
If you keep rubbing...the static will come back.
----- Original Message -----
Sent: Wednesday, January 02, 2002 13:43
Subject: [TowerTalk] Ham IV indicator acting "funny"
| Hi all,
| I need some help in determining what the problem is,
| in my Ham IV control box meter.
| I pulled off the top cover to change the meter bulb and
| since then the meter has been giving erroneous readings
| Meter plate is South-center.
| 1. When power is off, I can't mechanically Zero the
| needle. It keeps drifting either side of Zero, with very
| small changes in the front panel screw. ( I'm using a
| nonmagnetic plastic Bournes plastic tuning tool).
| 2. With power on, I can calibrate the meter ok.
| 3. The meter indicates OK from South (center), thru West
| and up to North.
| 4. When rotating CCW from south, the meter will stay around
| 160 deg., then when the ant is stopped at 90 deg., the indicator
| will catch up in a slow continuous sweep.
| Note: I'm only turning a TH3jr and 3el 6 mtr yagi with this
| rotor. I can also see the antenna from the shack, when
| swinging it around.
| 5. From 90 deg, CCW to North, the needle will "lag" and slowly
| creep towards North, but never go past about 15 deg.
| 6. Thinking the needle was binding in spots, I tapped the face of
| meter (lightly) with my finger. The needle went crazy as if hit by
| a static charge....
| Next, I will try going thru the resistance and voltage checks to see if
| I can get a handle on the problem, unless someone out there has
| seen this condition before and has a solution.
| I appreciate any and all help and ideas.
| Thanks es 73,
| John K1RC
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This list is sponsored by the new eHam.net Store. When you buy products
like ICE filters, Array Solutions StackMatch, or M-Squared Antennas from
the eHam Store for the same price you pay direct, a portion of the sale
price goes to support this list. Check it out at http://www.eham.net.
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Administrative requests: towertalk-REQUEST@contesting.com