REFLECTOR: Transponder Antennas

Scott Baker sbakr at comcast.net
Mon Feb 25 13:00:31 CST 2008


Please check with the radio shop regarding the antenna.
I understand that that the Garmin 330 requires a special antenna; using a high quality transponder cable.
I don't think that a home-made or Archer type transponder is going to work with the 330.
SB
  ----- Original Message ----- 
  From: Craig and Denise Woolston 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Monday, February 25, 2008 8:05 AM
  Subject: REFLECTOR: Transponder Antennas


  Hey all-

   

    John and I have a homemade ¼ wave transponder antenna mounted under the battery in the nose of the aircraft (completely) inside.  When we first started flying we got occasional complaints here in SoCal about losing our beacon.  Now it happens much more frequently and it appears to be when we are low and in the "ground clutter".  The frustrating part is the GTX 330 shows a reply light even when ATC says they can't see the code.  They are getting a primary but no code.

   

  Where have other located their antennas and what type?

   

  Has anyone tried the Archer or Advance Electronics Antennas I see in AS?

   

  Craig

  250hrs.XL-5FG Flying in Lancaster, CA

   



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