[time-nuts] Best location for a GPS antenna...?

[Bob Camp]

Hi

Do you have a reference for 100' distant strikes routinely destroying
receivers?

Bob

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Chris Albertson
Sent: Thursday, April 12, 2012 3:25 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Best location for a GPS antenna...?

On Thu, Apr 12, 2012 at 11:56 AM, Randy D. Hunt
<randy_hunt960 at yahoo.com>wrote:

> On 4/12/2012 1:10 AM, Heinzmann, Stefan (ALC NetworX GmbH) wrote:
>
>> What about mounting the antenna on the side of the metal pole, with the
>> top of the pole extending a foot or more above the antenna?
>
>
Typically when a receiver or other radio is destroyed it was NOT because of
a direct strike.  A strike within maybe 100 feet is enough.  There is a
_huge_ EMP field around the strike.  The field will induce large currents
in any nearby conductors.   Even if the strike is to bare Earth many feet
from the antenna the potential of the earth is raised by say 1,000 volts so
now anything connected between ground the power has 1KV across it.





Chris Albertson
Redondo Beach, California
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