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03-01-2018, 12:08 PM
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Join Date: Apr 2016
Location: Yorkville Il
Posts: 67
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Marker Beacon Ant ?
Anyone using a coax wire stripped to copper and glued in? In the wing tip instead of a CI 102 ant ? If so how is it working for you Thanks Jeff
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RV 7 test flight summer 19!
1948 C-140 Flying By us for 14yrs
Dues PD for 2019 Jeff
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03-01-2018, 02:48 PM
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Join Date: May 2006
Location: Pocahontas MS
Posts: 3,884
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I'll confess to no direct experience, but it's been discussed over on the Aeroelectric Connection quite a bit, and experts seem to agree that something as poor as the proverbial wet noodle hanging inside a main gear leg fairing will work fine for a marker beacon ant. Reason given is that the signal is so strong when you need it to work, the receiver will pick it up even with a very poor quality antenna. I've heard tales of people just tying a length of insulated wire to the center conductor of the coax.
FWIW...
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03-01-2018, 02:58 PM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,152
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Wet noodle here. No problem at all. Over 10yrs of flying the ILS with it (coax glued in a wing tip) and have never thought twice about it. It just works.
No marker beacon in the next one!
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Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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03-01-2018, 03:03 PM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,048
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Why would you want a marker beacon receiver these days.....?
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020 
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03-01-2018, 03:32 PM
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Join Date: Aug 2006
Location: Sydney Australia
Posts: 220
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Wet noodle here as well. Routed down the gear leg fairing. Easy. Works fine.
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Richard
RV7 VH-XRC Sold :-(
RV10 in progress.
Sydney, AUS
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03-02-2018, 09:29 AM
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Join Date: Dec 2007
Location: Fredericksburg, TX
Posts: 662
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What Scot and Mike said. Why waste the time/effort/money to install a marker beacon?
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Jim Averett
RV-8
TS36 - Silver Wings
Fredericksburg, TX
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03-02-2018, 10:31 AM
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Join Date: Apr 2016
Location: Yorkville Il
Posts: 67
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Marker beacon
Thank You VAF and the people that respond. Sometimes these sound like crazy ?'s to the pros but were not all pro's just trying to get this 7 done and in the air with as little having to go back and add or remove wrong thoughts or stuff. Thanks Again Jeff
__________________
RV 7 test flight summer 19!
1948 C-140 Flying By us for 14yrs
Dues PD for 2019 Jeff
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03-02-2018, 11:16 AM
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Join Date: Jan 2010
Location: Southern Michigan
Posts: 1,964
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I put a nice expensive Comant MB antenna in the wingtip on the RV-10 when I was building it. I pulled it out before the plane was finished.
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David C.
Howell, MI
RV-10: #41686 Under Construction
RV-9A: #90949 Under Construction
RV-10: #40637 Completed/Sold 2016
Cozy MKIV:#656 Completed/Sold 2007
"Donor Exempt" but donated through Dec. 2020
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03-03-2018, 11:09 AM
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Join Date: Jul 2013
Location: US
Posts: 2,245
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Stripped coax glassed into the lower cowling. Works great.
Why? Because the audio panel has the lights and sounds for MBs, so why not?
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2019 Dues paid!
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03-04-2018, 07:54 AM
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Join Date: Jan 2014
Location: Lewiston, Maine, USA
Posts: 13
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Store bought antenna
I first went with the glassed in wet noodle in the cowling it worked but not well. I then tried stripped coax out in the breeze and that worked better. I then found a boat style MB antenna and installed it. It works great. In my opinion no antenna you make in your garage is better than a tuned antenna that was designed for the intended use.
Russ Keith
RV9-A Flying
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