Microphone ↔ radio adapter finder
Every documented mic-to-radio pairing by connector family and microphone brand, covering Heil, MFJ, and OEM mics across all major transceiver lines. Click any cell.
Why you need this
Every amateur radio manufacturer uses a different microphone connector. They all look similar (8-pin round plugs) but the pinouts are completely different. An Icom mic plugged into a Yaesu radio will not work and may damage the radio.
This is the #1 compatibility question in amateur radio: "what adapter do I need?"
Heil adapter cables
Heil Sound microphones use XLR connectors on the headset end and require a radio-specific adapter cable. Current Heil part numbers: AD-1-I (Icom 8-pin round), AD-1-IM (Icom modular), AD-1-Y (Yaesu 8-pin round), AD-1-YM (Yaesu modular), AD-1-K (Kenwood/Elecraft 8-pin round), AD-1-KM (Kenwood modular), AD-1-KX3 (Elecraft KX2/KX3 TRRS), and AD-1-C (Collins/Drake 3-pin).
Yaesu round vs modular: check your specific model
Yaesu has used BOTH connector types for decades, and the split does not follow age. The compact/portable line uses the 8-pin RJ-45 modular jack (FT-817/818, FT-857D, FT-897D, FT-891, FT-991A, FT-450D, going back to the FT-900 in the mid-1990s), and the split continues in the current line: the FTDX10 and FT-710 use the modular jack (their SSM-75E mic has an RJ-45 plug), while the FTDX101D/MP uses the traditional 8-pin round jack (SSM-75G). The suffix matters: SSM-75E is the modular version, SSM-75G the round one. So an FTDX101 mic will NOT plug into an FTDX10, and vice versa. Always check your model before ordering a mic or adapter.