Here's a site with ideas: http://www.w8ji.com/contest_station_w8ji.htm
The pictures are worth studying. Grounding the antenna(s) when not in use is a
good idea. Disconnecting the antenna from the amps may help, but if you go that
route, best to disconnect all wiring, including ground. Any electrical path has
the potential of providing a path for lightning.
Check the polyphaser site as well: http://www.protectiongroup.com/Home
73,
Julius
Julius Fazekas
N2WN
Tennessee Contest Group
http://k4tcg.org/
http://groups.google.com/group/tcg1?hl=en
Tennessee QSO Party
1800z Sunday, September 4 until 0300z Monday, September 5, 2011
http://www.tnqp.org/
Elecraft K2 #4455
Elecraft K3/100 #366
Elecraft K3/100 #1875
--- On Mon, 6/20/11, tzikas tzik <tzitzikas77@gmail.com> wrote:
From: tzikas tzik <tzitzikas77@gmail.com>
Subject: Topband: improve the lightnings charges protect for my equipment 160m
To: topband@contesting.com
Date: Monday, June 20, 2011, 11:21 AM
Hello. I have a amplifier for 160m. 3 days ago a storm strikes my
transmitting area, and two lightnings strikes one of the building wherein i
have install
my vertical antenna's support rope. This building has lightning protect. The
result of these strikes was to cause damage to my amplifier. In particular
all of the output mosfets destroyed. My ground system is a single copper
ground rode, 1,5m length.
Here you can see the antenna tuner:
http://natural-gas.webs.com/antenna-tuner.JPG
I am using for protect against antenna high voltage charges a 2.5mH r.f
choke which is connected between antenna feedpoint and ground system.
But after these results i suppose that it isn't works well. I am looking for
an idea, or a cheap product to improve the lightnings charges protect
for my equipment. Thank you in advance.
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
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