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Mic adapter

CousinEarl77

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Hello, this is my first post to radio reference. I have a Uniden PRO401HH handheld that I am trying to make into a small but reliable unit. I have replaced the rubber duck antenna with a 51 inch whip and am looking to throw on a hand mic. I will have to make an adapter, but the wiring seems odd. The jack on the mic that Uniden sells only has 2 contacts, how can this work? Since it’s a mic and speaker in one does the mic ground instead use the ground side of the speaker? Or is there only a need for 2 of the mic contacts? Thanks all!

Earl

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ladn

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The jack on the mic that Uniden sells only has 2 contacts, how can this work?
The mic plug has four contacts! Look at the little black rings on each pin--they're insulators. Each pin has a "tip" and a "ring" connection. I don't know Uniden connectors, but from the photo it looks like it's using 3.5mm and 2.5mm pins which are pretty easy to find.
 

CousinEarl77

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The mic plug has four contacts! Look at the little black rings on each pin--they're insulators. Each pin has a "tip" and a "ring" connection. I don't know Uniden connectors, but from the photo it looks like it's using 3.5mm and 2.5mm pins which are pretty easy to find.
The mic a speaker built in, which is what the larger jack is for. The plugs for mic and speaker are side by side on the radio, and it plugs into both. One jack for speaker, and another for mic.
 
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