Only problem is it takes quite a bit of voltage to fire the plugs! MUCH
better idea to use chokes or 100K resistors. For ladder line, use 2
resistors. 1 from each line to your station ground. Then the voltage can't
get very high!
And their a whole lot cheaper!
73
Jim W7RY
--------------------------------------------------
From: "Clint Talmadge W5CPT" <w5cpt@bellsouth.net>
Sent: Saturday, May 14, 2011 4:54 PM
To: "'W1JCW'" <W1JCW@hotmail.com>
Cc: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Discharge with a dipole
> Look at this:
>
> http://www.thewireman.com/prodpix5.html
>
> second row from the top.
>
> Clint Talmadge - W5CPT
>
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of W1JCW
> Sent: Saturday, May 14, 2011 6:49 PM
> To: reflector -tower
> Subject: [TowerTalk] Discharge with a dipole
>
> A previous post suggested a spark plug on each terminal the ladder line
> connected to.
>
> So the resister would go from each terminal and tie the other end to a
> ground rod ?
>
> I run 250' center feed 450 ladder line down to a 4:1 balun.
>
> 73-
> W1JCW
> John
>
>
> From: Jim Lux
> Sent: Saturday, May 14, 2011 5:59 PM
> To: K2VI
> Cc: <towertalk@contesting.com>
> Subject: Re: [TowerTalk] zapped with my dipole. OUCH!
>
>
> A 1meg resistor to ground?
>
> On May 14, 2011, at 13:29, "K2VI" <k2vi@cox.net> wrote:
>
>> It seems every time there's distant lightning and i go to disconnect
>> the dipole i get this nasty discharge when i touch the pl-259. Im
>> concerned it will eventually damage my tuner and or radio. The antenna
>> is not dc grounded like my beam or vertical are. It is a ladder line
>> fed antenna terminating into a 4:1 balun outside the shack and a 3'
>> run of rg8 coax to the tuner. How can i bleed this static off? I heard
>> from a ham friend the jump a 2.5 MH RF choke between the two terminals
>> of the 4:1 balun where the ladder line connects.Any advice would be
>> greatly apreciated.73 tony k2vi
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