[TowerTalk] Surge Arrestors for 2m QRO

Jim Lux jimlux at earthlink.net
Fri Mar 7 14:17:28 EST 2014


On 3/7/14 10:43 AM, Drax Felton wrote:
> What can used for lightening protection on 2 meters at the kilowatt power
> level?

A spark gap?
It's pretty easy to build an air gap that will fire at 1000V or so, and 
won't have much of an impedance bump at 150 MHz.

TESSCO shows this one
http://www.tessco.com/products/displayProductInfo.do?sku=22778&eventPage=1

Here's one for 5kW
http://www.tessco.com/products/displayProductInfo.do?sku=77855&eventPage=1
  but you need to add the gas capsule





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