You can easily monitor the wire temperature by measuring the resistance.
Copper has a known substantial positive temperature coefficient.
Rick N6RK
On 9/21/2010 7:15 PM, hanslg@aol.com wrote:
>
> Somehow I am not really comfortable with having a power supply connected to
> my antenna winter through. There need to be a balance between melting the ice
> and not melting the wire. I am not sure I will be able to do that. Anyone
> with experience how much power is needed. 0.1W/foot - 100W/foot? As the
> antenna is about 100 - 500 feet long it may require a lot of power = $$
>
> Hans - N2JFS
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: van wd8aam<vlincoln@frontiernet.net>
> To: TOWERTALK@contesting.com
> Sent: Tue, Sep 21, 2010 8:35 pm
> Subject: Re: [TowerTalk] Fwd: Fwd: How to support a large loop?
>
>
> Another idea I've never tried, but heard of and on a loop, it might just
> work, is to hook a 12vdc power supply with ammeter and voltmeter, and
> pump some power into the wire, heating it to warm, watching to make sure
> you don't overtax the power supply, and see if the ice melts off the wire.
> wd8aam
>
>
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