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[aprssig] sunroof antenna?

Jay Bareman Radio_Q at mchsi.com
Mon Nov 28 17:33:29 UTC 2005


I would suspect the material they use to provide a sun shield might
seriously affect the rf coupling mechanism.  The Chevrolet Tahoe uses a
metalized material in making their 'privacy' tinted glass for the side
windows.  It tells you in the owners manual you cannot put a 'through the
glass' antenna on the windows.  I suspect they use the same material in the
sun roofs to cut the sun intensity down.

 

A test might be to take your GPS and get a fix with the sunroof retracted.
Then slide the sunroof closed and see what happens to your GPS signal.  That
would tell you if you had a metalized material being used to provide the
window tinting.

 

Good Luck

 

Jim  K5QQ

 

  _____  

From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Rod,VE1BSK
Sent: Monday, November 28, 2005 11:23 AM
To: TAPR APRS Mailing List
Subject: [aprssig] sunroof antenna?

 

Has anyone had any experience with fastening a thru-glass capacitive antenna
to a sunroof, i.e., a horizontal versus vertical mounting of such an
antenna. It seems to me that it should be workable if the fastening can
withstand the effectsw of weather and direct wind effectg. Thanks for any
comments on this idea, 73 de Rod,VE1BSK.

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