We specialize in the repair of older, panel-mount transponders, such as the KING KT-76/78, Narco AT-50/150 series, Collins TR-661 series and others. Many shops refuse to work on them and would rather you buy a new transponder. It has been our experience that many older transponders can be brought back to life with a simple realignment to factory settings.

If you are not sure your transponder is working correctly, we offer a flat-rate service that won't break the bank.

• For $49 plus shipping, we will bench test your transponder and advise you of its condition.
  
  
• For $99 plus shipping, we will bench test your transponder and realign it to manufacturer's specifications, providing there is nothing else wrong.
  
  
• Encoder problems? We can test your encoder while evaluating your transponder for an additional $30.
  
  
• If your transponder requires parts or repairs, we will advise you of the cost and you can decide whether or not to have it repaired.

Before you send your transponder off to any repair facility, make sure they are an FAA-certified Repair Station using calibrated test equipment. We issue FAA 8130-3 airworthiness certificates with all repairs and certifications.

We also buy non-working transponders. Please contact us and let us make an offer.

PLEASE NOTE: Call 817-422-2714 before sending us your transponder. We are a small shop (which means low overhead and low cost for you) but we do, occasionally, take vacations.

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