[Elecraft] Antenna static charge precautions - any tips?

[hawley, charles j jr]

I'll keep an eye on it :)

Sent from my iPhone

On Sep 9, 2012, at 10:53 AM, "Ron D'Eau Claire" <ron at cobi.biz> wrote:

> Many antenna systems do not require this protection. They are shunt fed
> which provides a direct-current short across the feed line at all times.
> 
> Chokes may work fine, but all chokes have some parasitic capacitance across
> the windings which means they have a series resonances somewhere across the
> RF spectrum. At those points the choke will greatly disturb the impedance
> presented to the rig and absorb RF, even to the point of catching fire! 
> 
> 73, Ron AC7AC
> 
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of hawley, charles j jr
> Sent: Sunday, September 09, 2012 6:29 AM
> To: k6dgw at foothill.net; elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Antenna static charge precautions - any tips?
> 
> Which begs the question...why isn't a 100K across the antenna jack in the
> original design?
> BTW, I use a choke across the antenna leads.
> 
> Chuck, KE9UW
> aka Jack, BMW Motorcycles BMWMOA #224
> 
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