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Just re-read the installation requirements for the Comat GPS antenna that comes with the new Chelton Pinpoint GADAHRS. It requires an aluminum ground plane and cautions the user to clean and Alodine it for better electrical contact. Sooooo - whaat is the reaal story?
Robert M. Simon
ES-P N301ES
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From: Lancair Mailing List on behalf of Dan Schaefer
Sent: Fri 8/11/2006 8:22 PM
To: Lancair Mailing List
Subject: [LML] Re: GPS ground plane
Mike, Chat - GPS antennas don't require an external ground plane, whatever
they need is internal to the antenna module. Mike, what you're calling a
ground plane in the submitted photo is probably nothing more than a mounting
shelf. Mine is mounted just behind my head aft of the roll-bar on the
center-line on a fiberglass shelf (no metal other than the connector and
cable) and does just fine (very high S/N ratio on a bunch of satellites).
Dan Schaefer
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