REFLECTOR: Radio weak and scratchy

[Kirk Aragon]

Noel,


I probably should look at the pillar, to verify it's just glass.  :-)



Kirk








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From: gattenby at tulsaconnect.com
To: reflector at tvbf.org
Date: Fri, 4 Sep 2009 12:04:24 -0500
Subject: Re: REFLECTOR: Radio weak and scratchy



Kirk,
 
Is the "pillar" in front of you door made of carbon fiber? Some are.
 
Noel
 
 
On Fri, 4 Sep 2009 09:57:24 -0400
 Kirk Aragon <aragon_kirk at hotmail.com> wrote:
> 
> 
> Rene,
> 
> 
> 
> I experience many radio problems and I have Shaw wings 
>also. Two years ago when I was at the factory, they 
>confirmed that the winglets are carbon fibre and 
>explained to me that radio waves will "ground" (maybe not 
>the exact word that they used) to the carbon.
> 
> 
> 
> I can receive from 60+ miles away, but transmission is 
>only good for 2-3 miles. I currently carry a portable 
>tranciever and when I get tired of hearing everyone 
>telling me I'm "breaking up," I switch to it. With the 
>portable, I can talk with ATC at 30+ miles.
> 
> 
> 
> I've tried the "Advanced Aircraft Electronics" no ground 
>plane antenna at the front pillar on the pilot side door, 
>but have not noted substantial improvement in 
>performance. I attribute that to the curved path that the 
>antenna must take to conform to the aircraft hull. 
> 
> 
> 
> Since there are no other flat and vertical surfaces in 
>the aircraft, I am unsure as to what my next steps will 
>be to correct this issue. Perhaps some "surgery" on the 
>winglets to create fiberglass windows. Maybe glassing in 
>an aluminum or stell mesh in the floor of the aircraft 
>and mounting an external antenna.
> 
> 
> 
> I would be interested in your fix if you find one. I 
>would also be interested in other aircraft owners (with 
>Shaw wings) radio experience.
> 
> 
> 
> Cheers
> 
> 
> 
> Kirk 
> 
> N360TV, 1996 Velocity SERG
> TO-360-E1A6D
> 
> 
> 
> 
> 
> 
> 
> EMAILING FOR THE GREATER GOOD
> Join me
> 
> 
> 
> 
> 
>From: dugasd at bellsouth.net
> To: reflector at tvbf.org
> Date: Thu, 3 Sep 2009 18:08:57 -0500
> Subject: REFLECTOR: Radio weak and scratchy
> 
> 
> 
> 
> 
> Dear Radio Wave Gurus,
> I have a number one radio that is weak and scratchy per 
>ATC. I have dual Garmin 430s with Shaw wings and embedded 
>ant.  I cleaned all my connections in the radio stack and 
>the BNC connectors to the wing ant connection.  I 
>confirmed continuity of the shielding and central 
>conductor.  I had made no changes in over 300 hour of 
>flying without problem.  So I sent it in to Garmin who 
>“realigned something” and charged me $1,000.00 through my 
>avionics shop.  It is no better.  Can only partially be 
>heard by atc on the taxiways.  I suspect and antenna or 
>wiring problem but I am unsure what to do next.  I have 
>run a new coax outside of the plane to the wing BNC and 
>no difference.  If it is the antennae what can it be and 
>how do I check it?  If it is the rack – ideas?  My next 
>thought was to replace the BNC connector on the antenna 
>itself but I was reluctant to if I was just missing 
>something.  I now have upgraded both 430s and can swap 
>them in the rack and it seems to be slot one problem.  I 
>don’t think it is a Garmin problem.
> Any help would be appreciated.  Is there a Radio Shack 
>fix? 
> Rene’
> 
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