Another solution is a double throw relay operating NC to ground with NO
power but open with power from the radio acc power jack. When closed the
static build up is drained. OR use AS-302U or AS302N I.C.E type protectors--
see http://www.arraysolutions.com/Products/surge_arrestorAS-3xx.htm
73 ES DX,
Gary -- AB9M
-----Original Message-----
From: Michael Clarson
Sent: Friday, March 07, 2014 2:49 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Surge Arrestors for 2m QRO
While all the gap type suppressors will protect the amp just fine, the
input of the rcvr is going to have over 1000V across it before the gap
fires. while a 1/4 wave coaxial stub is a bit long to be the only
protective device at 144 MHz, the stub will protect the amp and divert a
lot of the energy away from the rcvr. Having the antenna relay be in the TX
position when power is off will also help protect the rcvr. I sent this to
Drax before, but didn't copy the group. --Mike, WV2ZOW
On Fri, Mar 7, 2014 at 2:38 PM, Floyd Rodgers <kc5qbc@swbell.net> wrote:
Alpha delta transitrap also has a high power version
Floyd KC5QBC
> On Mar 7, 2014, at 1:26 PM, john@kk9a.com wrote:
>
> Did you look in the Polyphaser catalog? I seem to remember seeing high
> power protectors.
>
> John KK9A
>
>
> To: "towertalk@contesting.com" <towertalk@contesting.com>
> Subject: [TowerTalk] Surge Arrestors for 2m QRO
> From: Drax Felton <draxfelton@gmail.com>
> Date: Fri, 7 Mar 2014 13:43:42 -0500
> List-post: <towertalk@contesting.com">mailto:
towertalk@contesting.com>
> What can used for lightening protection on 2 meters at the kilowatt
> power
> level?
> The Polyphasers I know of top out at 350 watts.
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|