[time-nuts] Lightning strikes vs GPS antennas

[Rob Kimberley]

There are a number of solutions on the market. Check out PPM Vialite for
one.

http://www.chronos.co.uk/pdfs/comp/ppm/PPM227.pdf


Rob Kimberley

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Michael Baker
Sent: 04 July 2010 4:31 PM
To: time-nuts at febo.com
Subject: [time-nuts] Lightning strikes vs GPS antennas

Time-Nutters--

The 5-year Flash Density Map of the USA provided by the National Weather
Service indicates that my county here in N. Central Florida experiences "16
and up"
strikes/sq-km/year.

< http://www.weather.gov/os/lightning/images/map.pdf >

Experience bears this out...

I live on 6 heavily wooded acres and have had at least
6 trees struck and killed somewhere on my property over the last several
years.

I make it a faithful practice to disconnect antennas from any gear during
the frequent thunderstorms we experience.

I have considered fastening a GPS antenna on the end of a 12 foot fiberglass
pole and installing it in the top of one of the trees next to my workshop
building so that it has a clear 360 deg sky view down to within a few
degrees of the horizon.

It would be nice to come up with some way to use fiber optics to isolate the
GPS antenna from the receiver.
Coming up with a solar panel and battery to isolate the antenna and RF
preamp power is no big deal but coming up with a way to isolate the RF via
fiber is more problematic.

Any thoughts/comments on this...?

Thanks!!

Mike Baker
Micanopy, FL
-----------------------------





_______________________________________________
time-nuts mailing list -- time-nuts at febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.