My original transponder installation in my panel. A Narco 50A. The transponder worked fine when I bought the airplane two years ago, but it was failing and obsolete. It was not worth repairing.
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Key Takeaways:
- The article describes the process of upgrading an airplane's failing and obsolete Narco 50A transponder and encoder with modern equipment.
- Key steps included installing a new, more accurate encoder and carefully positioning and installing a new external GPS antenna, which involved drilling and reinforcing the fuselage.
- The upgrade culminated in the installation of a Stratus ESG Transponder and a Stratus 2S receiver, with the latter now utilizing the new external GPS antenna for improved satellite data acquisition.
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