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GPS antennas

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Dick Sipp

Joined: 11 Jan 2006
Posts: 215
Location: Hope, MI

Posted: Wed Jan 25, 2006 7:51 pm Post subject: GPS antennas

I know many folks have mounted their GPS antennas under fiberglass components like cowls.  Most have reported no problem with reception.



Has anyone  with this configuration had a problem they could identify?  Any reasons not to go this route?  Any other considerations other than insuring unrestricted view of the sky and no metallic materials in the fiberglass.?



Thanks



Dick Sipp

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aadamson(at)highrf.com
Guest

Posted: Wed Jan 25, 2006 8:07 pm Post subject: GPS antennas

Also, *do not* put it under carbon fiber... Might as well be aluminum as

it's conductive and is a great faraday shield 



Alan 



--

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bakerocb

Joined: 15 Jan 2006
Posts: 727
Location: FAIRFAX VA

Posted: Thu Jan 26, 2006 4:35 am Post subject: GPS antennas

Responding to an AeroElectric-List message previously posted by: "Richard 

Sipp" <rsipp(at)earthlink.net>



1/26/2006



Hello Dick, My Garmin GNS 430 came with an antenna and installation 

instructions for the antenna that called for a large metal ground plane 

under the antenna. I called the Garmin tech people and protested.



The technician said there was no real need for such a ground plane, but 

suggested that if I was going to put the antenna under a fiberglass upper 

cowling area near the engine that I mount it on a small metal shelf to help 

screen the antenna from electromagnetic junk that might be radiated from 

below.



This I did, ensuring that the antenna had a view clear of any metal 

obstruction in the entire upper hemisphere. It has worked great.



OC



<<I know many folks have mounted their GPS antennas under fiberglass 

components like

cowls.  Most have reported no problem with reception.



Has anyone  with this configuration had a problem they could identify?  Any 

reasons

not to go this route?  Any other considerations other than insuring 

unrestricted

view of the sky and no metallic materials in the fiberglass.? Thanks Dick 

Sipp>>

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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