Here in Florida, I would recommend ANY external antenna or other roof
mounted device be bonded to the building ground system conductor. See
NEC and check Polyphazer's website for guidance. Polyphazer makes
devices to protect GPS equipment as does Huber and Suhner. Be sure the
device is rated to 2 GHz and that it passes through the bias voltage for
the LNA.
Also be aware that the ground rods installed at a residence will corrode
away over time, It is good insurance to install and bond (to the main
grounding conductor and rod), supplemental rods around the structure
where the antenna enters.
-----Original Message-----
From:[email protected] [mailto:[email protected]] On
Behalf Of Chris Albertson
Sent: Thursday, December 30, 2010 6:26 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] GPS Antenna
A few questions about GPS antenna....
3) Do people really run coax straight from a GPS antenna into their
house with no protection from lightening? Maybe a GPS antenna is a
small target compared to a 100 foot wire antenna in Florida
--
Joe Leikhim
President
Leikhim and Associates
Oviedo Florida
407-982-0446
[email protected]
www.leikhim.com
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