Actually, since you are running the balun, you could just run a piece of
copper flashing, say 1 to 1.5" wide from the coax shield to a ground rod
just outside of the entrance of the antenna cable into the shack. Would
also be a good place to include a lightning arrestor which will protect your
radio's receiver input and give a convenient place to make that connection.
The balun is making it so you can run coax, unbalanced line. Grounding the
shield should not affect antenna tuning and will provide a path for any
static buildup or worse.
Stan
----- Original Message -----
From: "W1JCW" <W1JCW@hotmail.com>
To: "reflector -tower" <towertalk@contesting.com>
Sent: Saturday, May 14, 2011 7:48 PM
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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