Take a look at what is done in coax powered devices. I think the old
heathkit switch used 100mh to keep the rf off the dc stuff. Just look for a
common inductor in that range that will handle the current for whatever you
are doing and it should be ok. Just remember to put the mov on the line
side of the inductor, or if you put it up the tower put an mov on both sides
of the inductor... which may not be bad inside also just in case.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net
-----Original Message-----
From: johne tds.net [mailto:johne@tds.net]
Sent: Sunday, July 22, 2012 15:29
To: towertalk@contesting.com
Subject: [TowerTalk] 13.8 dc tower protection
I need to --build-- not BUY some type of lighting damage reduction for the
13.8 volt DC running to antenna switching. I did have a link that no longer
works of some information. I would like to use some MOV's and inductors /
and or other --to drain off the near junk.
Looking for any diagrams and inductor sizing information. Have been pursing
the web , Just not finding the link or info.
Thanks de John KØCQW
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