Today's Message Index:
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1. 11:25 AM - ADS-B GPS / WAAS antenna install (rparigoris)
2. 03:18 PM - Re: ADS-B GPS / WAAS antenna install (Bill)
3. 05:16 PM - Re: ADS-B GPS / WAAS antenna install (rparigoris)
Message 1
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| Subject: | ADS-B GPS / WAAS antenna install |
Hi Group We have a Garmin GA35 GPS / WAAS antenna that needs installing for ADS-B
Garmin GDL-82. We want to install it about 2 feet aft of doors under ceiling.
Has anyone put a GPS antenna there? Any pics? What size and shape ground plane
did you use? Garmin is calling for a ground plane to extend 7.5" from the
edge of antenna all around which will make it an approx. 19" circle. Thx. Ron
P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498517#498517
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| Subject: | ADS-B GPS / WAAS antenna install |
Ron,
Normally a GPS antenna does not need a ground plane. It's part of the
antenna. I'm guessing they are calling it a ground plane when it's just
shielding RF from the transponder or com radio. I installed the EchoUAT in
my plane which uses a GPS with integral antenna. I just mounted it on a
piece of aluminum the width of the GPS and bent in an L shape and bolted to
the top of the back bulkhead. I'm getting a good GPS signal in my plane in
the basement.....
Bill Henderson
N51EU
Europa Monowheel Classic
Loganville, GA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of rparigoris
Sent: Thursday, September 24, 2020 2:24 PM
Subject: Europa-List: ADS-B GPS / WAAS antenna install
Hi Group We have a Garmin GA35 GPS / WAAS antenna that needs installing for
ADS-B Garmin GDL-82. We want to install it about 2 feet aft of doors under
ceiling. Has anyone put a GPS antenna there? Any pics? What size and shape
ground plane did you use? Garmin is calling for a ground plane to extend
7.5" from the edge of antenna all around which will make it an approx. 19"
circle. Thx. Ron P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498517#498517
Message 3
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| Subject: | Re: ADS-B GPS / WAAS antenna install |
Hi Bill The Garmin GA 35 is an active antenna and requires a ground plane that
extends 7.5" off the edge of the antenna. Somehow 5vdc gets put in and being active
it amplifies signal. I spoke to Garmin and Steinair and both said it's necessary.
Comant antenna does not need a ground plane. Ron P.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=498520#498520
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