John,

It is the same technology used for years by broadcasters, that is, bleeding 
off the voltage build up before a strike can develop.

Phil.



----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, June 20, 2009 12:58 PM
Subject: Re: Lightning Arresters


>A lightning arrester for inside the building? not good at all in my book,
> you don't want lightning anywhere near the inside of the building.
> ----- Original Message ----- 
> From: "Phil Scovell" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, June 20, 2009 2:48 PM
> Subject: Lightning Arresters
>
>
>>I was asking about lightning arresters based up what I have tried.  I once
>> tried an in-line arrester but discovered, on my R7 multiple band 
>> vertical,
>> it lowered the SWR by about 40 KHz.  I couldn't believe it so I tried
>> testing it in and out and sure enough, it did change frequencies.  No, I
>> can't remember the model and make of it.  I have, for several years, been
>> using the Alpha Delta gas tube arc-tube coax switch arrester.  They make
>> them for HF and for VHF-UHF operations but they ain't cheap.  They are
>> really rugged and strong and they make one to mount on a wall, desk, or
>> whatever, but they also make one with rubber feet for desk top usage.
>>
>> Phil.
>> [log in to unmask]
>