REFLECTOR: GPS Antenna - External/Internal

[Andrew Ellzey via Reflector]

I did the same thing for my GNS-430 non WAS Nav Com, and it is working fine for me. The factory hatch cover on the XLRG is carbon fiber. GPS antenna’s don’t work under carbon fiber.

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Andrew Ellzey
XLRG

From: Kurt Winker via Reflector 
Sent: Friday, February 06, 2015 12:52 PM
To: Stockman, Bill ; Velocity Aircraft Owners and Builders list 
Subject: Re: REFLECTOR: GPS Antenna - External/Internal

I made a small shelf above the landing light for mine. Works well so far, and out of the way. 

Kurt

Sent from my iPhone

On Feb 6, 2015, at 11:42, "Stockman, Bill via Reflector" <reflector at tvbf.org> wrote:


  Most mount them in the nose, under the cover, a few even put them on the glare shield.

   

  From: Reflector [mailto:reflector-bounces at tvbf.org] On Behalf Of Tom Mann via Reflector
  Sent: Friday, February 06, 2015 1:21 PM
  To: Velocity Reflector
  Subject: REFLECTOR: GPS Antenna - External/Internal

   

  My Velocity Std/RG (DMO-249) came with a Trimble GPS that still works well.

   

  I am currently wrapping up a lost of restoration work I have been doing on the aircraft to bring it back into service and one of the things I was looking at addressing was the externally mounted GPS antenna. Most everyone mounts them inside and shoot through the glass which had me wondering why (in this age of composites) would you mount it externally in the first place.

   

  I happened upon a post in the reflector archives that mentioned that the early fuselages used U.S. Paints 545 White for the primer (zinc oxide) to create a better radar profile (which was a rather strange goal.) As such, I am assuming that this could explain the location of the antenna. 

  Does anyone know if this is a correct assumption?

  If that is the case, I would assume that it could be relocated under the canard cover without any issue.

   

  T Mann

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