[time-nuts] GPS-Attached Equipment Lightning Protection

Jack Hudler jack at hudler.org
Sat Mar 1 10:01:05 EST 2008


I found a site that has some great links on grounding.

http://www.n0hr.com/hamradio/152/10/ham_radio0.htm the link to
"Choices and consequences of station lightning protection" 
http://members.cox.net/pc-usa/station/ground0.htm
is most excellent. I have implemented this (right down to common bonding the
grounding system for the pool equipment).

Jack
-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Matthew Smith
Sent: Thursday, February 28, 2008 3:40 PM
To: Time Nuts List
Subject: [time-nuts] GPS-Attached Equipment Lightning Protection

Hi Folks

Is anyone implementing any form of lightning protection for their
GPS-attached equipment?

If my antenna gets struck or we have a nearby hit (nearest strike to
ground since we moved here was about 470m away, IIRC), I would like to
limit the damage to the GPS module.

My thought was to stick an optoisolator or similar between the serial
and PPS pins and the level converter (MAX232 equivalent) and power the
GPS module itself with one of those little Meanwell high-isolation DC/DC
converters.  This is very similar to what I am planning to do with the
outside components of my 1-Wire weather system.

I'd be interested to know what everyone else is doing in this respect
(if anything).

Cheers

M


-- 
Matthew Smith
Smiffytech - Technology Consulting & Web Application Development
Business: http://www.smiffytech.com/
Personal: http://www.smiffysplace.com/
LinkedIn: http://www.linkedin.com/in/smiffy

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