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07-11-2016, 09:43 PM
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Join Date: Feb 2012
Location: Leesburg, VA
Posts: 550
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Archer antenna
I have a recent panel modification to all glass AFS. No GPS Navigator. Thus I am depending on ILS for IFR approaches. I am getting marginal reception of localizer/glide slope and would not be comfortable flying IMC with this level of reception. I have an Archer antenna installed in the left wingtip. Purchased the airplane flying. Here is a pic of the Archer antenna. Is there anything obvious that might be causing the poor reception?
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Jim
Leesburg, VA (KJYO)
RV4 N444JT (  sold)
RV8 N37PK
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07-11-2016, 09:57 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,767
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It needs to be flipped, left right!
The side which is shown right needs to be electrically attached to the metal wing and end rib. One way would be to remove the nutplates, slide the now right, soon left, arm under the nutplates and re-rivet. Or just rivet a few aluminum straps to the antenna and the metal nutplate backing strip. Make sure there's no paint under the attach screws between the wing and the nutplates.
The arm shown left, should be right, will be outboard. Use some epoxy or fiberglass to keep it from floping around.
PS Hard to tell in the photo, but the piece at the bottom should, in flight, be reasonably horizontal.
PPS Amazing it works at all, as it is!
Last edited by BobTurner : 07-11-2016 at 10:07 PM.
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07-12-2016, 06:30 AM
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Join Date: Jan 2005
Location: Twin Cities, MN
Posts: 1,565
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Do you have the installation instructions? If so, those would be a great place to start. In addition to everything Bob said above, I recall the instructions wanted wires to not be perpendicular to any portion of the antenna.
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Brad Benson, Maplewood MN.
RV-6A N164BL, Flying since Nov 2012!
If you're not making mistakes, you're probably not making anything
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07-12-2016, 06:32 AM
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Join Date: Jul 2009
Location: Mojave
Posts: 4,643
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Yep. Agree with Bob. Needs to be flipped and grounded through the nut plates to the wing. I have the same antenna in my Rocket and reception is rock solid.
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WARNING! Incorrect design and/or fabrication of aircraft and/or components may result in injury or death. Information presented in this post is based on my own experience - Reader has sole responsibility for determining accuracy or suitability for use.
Michael Robinson
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Harmon Rocket II -SDS EFI
RV-8 - SDS CPI
1940 Taylorcraft BL-65
1984 L39C
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07-12-2016, 09:39 AM
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Join Date: Feb 2012
Location: Leesburg, VA
Posts: 550
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Soooo....
So I need to drill holes in the short arm on the right and sandwich this part under the nut plates? The point of the antenna will now face to the rear?
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Jim
Leesburg, VA (KJYO)
RV4 N444JT ( sold)
RV8 N37PK
Last edited by SMRacer : 07-12-2016 at 09:41 AM.
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07-12-2016, 09:52 AM
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Join Date: Feb 2006
Location: Baltimore, MD
Posts: 1,039
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Jim,
This is how my Archer NAV antenna installation looks -
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07-12-2016, 09:52 AM
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Join Date: Jun 2016
Location: McKinney, TX
Posts: 22
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check this out
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07-12-2016, 10:14 AM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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07-12-2016, 01:12 PM
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been here awhile
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Join Date: Dec 2004
Location: North Alabama
Posts: 4,300
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Last edited by Sam Buchanan : 07-12-2016 at 01:14 PM.
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