[AMRadio] Antenna Idea and lightning precautions

Mike Dorworth, K4XM k4xm at arczip.com
Mon Aug 7 15:45:20 EDT 2006

Motorola says the simple measure of placing a piece of pipe over the coax
where it enters the house and bending the coax sharply where it stops it's
downward run and enters the house is good. I KNOW that lightning goes in
straight lines and the few thousand amps on the coax would see the pipe as a
transformer with a single shorted turn that can handler thousands of amps
for long enough delay time for the juice to jump to ground . To help it
along. commercial installations strip the jacket off and wrap a copper strap
around the coax at the bend ( JUST BEFORE) AND CONTINUE ON DOWN WITH A
NUMBER 6 OR NUMBER 2 GROUND WIRE. The scrap of pipe, perhaps a foot long
need not be grounded it is merely a transformer turn that can " take it" a
very cheap insurance policy regardless of all the other really good advice
and opinion to be found on the sublect!  73 Mike

More information about the AMRadio mailing list

This page last updated 22 Feb 2018.