You might try talking with Jeff at Green Heron. He has excellent rotator
indicators and remote. boxes.
----- Original Message -----
From: "jimlux" <email@example.com>
To: "Jari Jussila" <firstname.lastname@example.org>; "TOWERTALK Reflector"
Sent: Monday, January 31, 2011 9:09 AM
Subject: Re: [TowerTalk] Wireless tower direction indicator?
> On 1/31/11 12:44 AM, Jari Jussila wrote:
>> I have a rotatable tower some 40m away from my ham shack. The old,
>> faithful tower rotator was hit in lighting and the potentiometer
>> telling the direction of my antennas was burned. The rotator being an
>> old, industrial model, the factory told me that there's no such
>> potentiometers available any more .......
>> Now ....
>> Does anybody know, if there are (commercial), potentiometerless
>> wireless (tower) direction indicators available in the market?
> I don't know that you actually need potentiometer-less.. if it's all in
> a box, then it will be pretty lightning immune.
> I'd look at wireless wind direction indicators. they're fairly
> in-expensive, because they're aimed at a consumer market, and you can
> probably retrofit the "windvane" part somehow. Not totally turn-key,
> but pretty close.
> You might also be able to modify a wireless thermometer, but you'd need
> to figure out how to turn angular position into a signal that matches
> the temperature sensor's output (typically a voltage on a semiconductor
> sensor or a resistance on a thermistor).
> Totally off the shelf, there are a variety of factory control and
> monitoring type systems available. I'd start by looking at the Omega
> Engineering catalog. they're mostly temperature sensing, but they've
> probably got something like what you're looking for, although I don't
> recall angular position or magnetic field. http://www.omega.com/
> there are, of course, electronic compass modules with serial and analog
> outputs, but they're not an off-the-shelf turnkey system. Look at what
> people are using for model airplanes and boats, for instance.
> For a more durable, and pricey, alternative, there are wireless
> compasses for boats.
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