ADS-B Installation Gallery

Denny Kotz

Wednesday, June 28, 2017 at 02:18 PM ET

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Key Takeaways:

The article details the replacement of a failing and obsolete Narco 50A transponder with a modern Stratus ESG system in an airplane.
The upgrade involved installing a new transponder rack, a more accurate encoder, and a new GPS antenna, which required drilling a hole in the fuselage and careful positioning.
New antenna cables were routed to connect the GPS antenna to the Stratus ESG transponder, which now provides satellite information to a connected Stratus 2S unit, no longer requiring a direct view of the sky.

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My new GPS antenna before it was installed. An O-ring is provided to seal the antenna to the fuselage. In addition, a sealant was applied to the perimeter of the antenna in order to ensure leak-free operation no matter what the environmental conditions.