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chasb(at)satx.rr.com
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 Posted: Sun Jul 01, 2007 6:01 am Post subject: Antenna Ground Plane |
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Should the antenna shield be connected to the ground plane or
isolated from it?
Charlie Brame
RV-6A N11CB
San Antonio
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bobf(at)feldtman.com
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| Posted: Sun Jul 01, 2007 9:10 am Post subject: Antenna Ground Plane |
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connected to it - I suggest the antenna handbook from ARRL as a reference.
bobf
Glastar
Amateur W5RF
On 7/1/07, Charles Brame < chasb(at)satx.rr.com (chasb(at)satx.rr.com)> wrote:[quote] --> AeroElectric-List message posted by: Charles Brame <chasb(at)satx.rr.com (chasb(at)satx.rr.com)>
Should the antenna shield be connected to the ground plane or
isolated from it?
Charlie Brame [quote][b]
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sarg314(at)comcast.net
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| Posted: Sun Jul 01, 2007 9:50 am Post subject: Antenna Ground Plane |
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Looking at my Comant CI-122 antenna, it looks as though they intend the
mounting screws to contact the fuselage electrically. I can find no
instructions in this regard on the Comant website (if any one knows of
any, please tell me). The gasket thay give you pretty much rules out
contact of the antenna's base with the skin of the plane, at least in
any reliable way. The screws seem to it.
I've mounted platenuts on my doubler plate and I'll see that it has
contact with the (bare) fuselage skin underneath, but I'd like to see
some more positive connection.
Does any one have any Comant documents that addresses mounting details
like this?
--
Tom S. , RV-6A
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wgill10(at)comcast.net
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| Posted: Sun Jul 01, 2007 10:06 am Post subject: Antenna Ground Plane |
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Tom,
The screws are the only paths necessary. Also, 'Lectric Bob advises
discarding the Comant cork gasket and use RTV sealant.
Bill
--
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recapen(at)earthlink.net
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| Posted: Sun Jul 01, 2007 4:37 pm Post subject: Antenna Ground Plane |
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I just finished the double and installation of my CI 122.
Per responses from Bob Kuckolls and a few others....I cleaned the primer
away from where the screws contact each other (providing continuity from the
antenna base through to the airframe) and ran a drill through all of the
rivet holes prior to riveting. I'm gonna pitch the cork gasket and use some
non-acidic RTV as a sealant.
I've had numerous requests for the photos of my installation - zap me
direct....
Ralph Capen
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nuckollsr(at)cox.net
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| Posted: Mon Jul 02, 2007 1:00 pm Post subject: Antenna Ground Plane |
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At 08:33 PM 7/1/2007 -0400, you wrote:
| Quote: |
<recapen(at)earthlink.net>
I just finished the double and installation of my CI 122.
Per responses from Bob Kuckolls and a few others....I cleaned the primer
away from where the screws contact each other (providing continuity from
the antenna base through to the airframe) and ran a drill through all of
the rivet holes prior to riveting. I'm gonna pitch the cork gasket and
use some non-acidic RTV as a sealant.
I've had numerous requests for the photos of my installation - zap me
direct....
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Ralph, If you'd care to share your photos on my server,
I'd be pleased to post them.
Bob. . .
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