I was thinking that those coaxial t/r relays might work well. Right now I
disconnect the antennas by hand but there is always the day when I forget.
Also it is a lot of wear on the PL259 connectors over the years.
Mark N1UK
----- Original Message -----
From: "Gene Smar" <ersmar@verizon.net>
To: "Mark Robinson" <markrob@mindspring.com>; "David Gilbert"
<xdavid@cis-broadband.com>; "Rick Stealey" <rstealey@hotmail.com>
Cc: <towertalk@contesting.com>
Sent: Friday, 27 June, 2008 7:24 PM
Subject: Re: [TowerTalk] lighting protection setup
> Mark:
>
> At my station I have essentially this scheme. I have one run of coax
> out to the tower. At the tower base I have an antenna switch that I
> remotely control from within the shack. The five HF antennas atop the
> tower and around the back yard are connected into this switch. None of
> these antennas is connected when the switch is powered down.
>
> My only advice would be to make sure that whatever relay you select
> for this purpose that it is capable of operating at the power levels you
> expect. I would urge you not to use ordinary open relays for V/UHF work
> but purchase one(s) that are intended for those higher freqs.
>
>
> 73 de
> Gene Smar AD3F
>
>
> From: Mark Robinson <markrob@mindspring.com>
> Date: 2008/06/27 Fri PM 05:10:45 EDT
> To: David Gilbert <xdavid@cis-broadband.com>,
> Rick Stealey <rstealey@hotmail.com>
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] lighting protection setup
>
> Is it worth placing coaxial relays outside the shack and having the relays
> set up so that when these relays are not energised the antennas are
> disconnected from the shack and grounded. Powering up the relays would
> connect the antennas into the shack and remove the grounding. This would
> allow for an easy automatic disconnect and grounding of antennas when not
> operating.
>
>
> Mark N1UK
>
>
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