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Re: [TowerTalk] spark gaps & GDT's for lightning/static

To: towertalk@contesting.com
Subject: Re: [TowerTalk] spark gaps & GDT's for lightning/static
From: jimlux <jimlux@earthlink.net>
Date: Mon, 10 Apr 2017 14:03:36 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 4/10/17 8:11 AM, Jim Thomson wrote:

##  You dont see am, fm broadcast or even cell sites with coax disconnected 
during lightning storms,
they all stay on the air.   The broadcast ants and towers on the rooftops in 
chicago + NYC get hit all
the time with lightning...so they must have it figured out.


Yes, but they typically do not have a sensitive receiver connected to those antennas.

Clamping the output of a 50kW transmitter to 2kV with a spark gap isn't going to be an issue, and a lightning stroke that results in 2kV on the transmitter output is something the transmitter can probably handle.


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