The GME MC301B Electret Hand Microphone is straight-up replacement gear for TX3100 and TX3100DP UHF radios, keeping your cab setup simple and functional. It plugs into the standard telephone-style socket on the front of the radio and lets you control transmit across the usual 80-channel UHF band. This is the kind of kit that suits day-to-day trips between 0 km and 1000 km, from short runs to longer tours.

The microphone shell uses solid plastic with around 2–3 mm thickness to handle knocks in a work ute or touring wagon. A coiled lead stretches from roughly 0.3 m up to about 1 m, giving you reach across the front seats without ending up in a tangle. The electret insert draws very low current from the radio, so there is no separate power lead or extra box to mount. It is simple, honest gear that pairs neatly with a TX3100 on Aussie roads.

• Genuine GME electret hand microphone
• Suits TX3100 and TX3100DP UHF radios
• Telephone style plug connects to radio front
• Electret capsule tuned for voice use
• Coiled lead keeps excess cable compact
• Hard plastic housing for everyday handling
• Simple replacement for a worn or lost mic
• Radio accessory suited to in-cab installations
• Compatible only with specified GME models
• Supplied as microphone only with fixed lead

Q: Is this microphone compatible with any other GME radios?

This microphone is specified to suit TX3100 and TX3100DP radios. Using it on other models depends on having the same microphone connector and wiring. If the plug or pin-out differs, it may not function correctly. Always match the model number on your radio before ordering replacement gear.

Q: Does the microphone come with a hang-up clip or bracket?

The box includes the microphone only. If you need a dash-mounted hanger, that will need to be purchased separately. Many radios already have a compatible button or clip installed from the original kit. Check your cab first so you do not double up on hardware.

Q: Can I replace the lead on this microphone if it gets damaged?

The lead is fixed to the microphone body, not a plug-in type. Any replacement of the cable would usually be done by swapping the whole microphone. This keeps the radio wiring standard and avoids soldering inside the handpiece. Most users treat the mic as a complete service part.

Q: Is any extra programming needed after fitting the microphone?

No extra radio programming is required when fitting this microphone. Once it is plugged into a compatible TX3100 or TX3100DP, normal transmit and receive functions operate as before. You can keep using your existing channel memories and settings. It is simply a hardware swap with no menu changes needed.

• Suits GME TX3100 UHF radio units
• Suits GME TX3100DP UHF radio units
• Connects via radio microphone socket supplied on these models
• Intended as replacement hand microphone for compatible GME radios