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Re: Lightening and mast mounted preamps



Hi John,

I always put a lightening protector right at the antenna.
so the preamp and the coaxial cable are protected. Some
antenna designs are already at DC ground so you may not
need it for them.

73,
Tony AA2TX


At 01:55 PM 3/8/03 -0800, John Geiger wrote:

>I have a question that I have not seen addressed
>before.  Asked my friend Don, NL7CO, who is a big VHF
>operator, and he didn't know but said put it on the
>reflector, so here it is.
>
>We generally unhook our antennas during thunderstorms
>because a nearby lightening strike can cause enough
>energy to burn out the receiver's front end-or at
>least important components in the front end, like the
>RF amp.  What happens with mast mounted preamps?  You
>usually cannot unhook the coax from them during a
>thunderstorm.  Do they have some sort of protection
>device built in to handle surges down the coax?
>
>WOuld be interested to know, as we get pretty good
>thunderstorms around here.
>
>73s john NE0P  EM04to-Lawton, OK
>
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