[TowerTalk] lighting protection setup

[Gene Smar]

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 at mindspring.com>
Date: 2008/06/27 Fri PM 05:10:45 EDT
To: David Gilbert <xdavid at cis-broadband.com>, 
	Rick Stealey <rstealey at hotmail.com>
Cc: towertalk at 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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