Knowledge Base
Answers to Your Questions about Radio and Wireless Voice Communications

GA General Aviation Two Plug Wiring Data

01 November 2015

 

5.2mm Plug (available here)

Mic -
Common Ground for Mic.

Mic +
Carbon Replacement Mic Levels.

PTT
Grounding to Mic Gnd will cause the radio to transmit.

 

6.35mm Plug

Spk+
Speaker Out and Side Tone

Spk Gnd
Speaker Ground (not necessarily commoned with Mic Gnd)

NC
Not Connected

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