ADS-B Installation Gallery

Panel cover
Gemini Sparkle

Key Takeaways:

  • The article details the replacement of an obsolete Narco 50A transponder and encoder with a modern Stratus ESG Transponder and Stratus 2S system in an older airplane.
  • The upgrade involved installing a new rack, a higher-accuracy (25 ft.) encoder, and carefully drilling and mounting a new GPS antenna, along with routing new antenna cables.
  • The new Stratus system provides enhanced functionality, including improved altitude reporting and the Stratus 2S now receiving GPS data from the newly installed antenna.
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Narco 50A rack, transponder, and encoder
Transponder rack installation

The Narco 50A rack, transponder and encoder. Out with the old to make way for the new. The weight of the old equipment was recorded in order to update the weight and balance for my airplane.

The installation begins with the installation of the new rack in the panel. The rack easily fit in the old location between the frame rails. Some new mounting holes were necessary for installation.
Encoder
My new encoder. Only 3 wires required, and improved accuracy. The older encoder could have worked, but it provides 200 ft. accuracy, while the new encoder provides 25 ft. accuracy.

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