-This is a top-of-the-line MFJ 1272BYV TNC/Microphone Switch. It is compatible with KPC-3 and KPC-2 brands and is perfect for other radio communication accessories, parts, and accessories. The switch type is TNC/MIC and is a must-have for serious radio communication enthusiasts. It is made to work with any compatible radio i.e. ICOM, Yeasu, and Kenwood specifically listed on the bottom.
MFJ-1272BYV works with: KAM® VHF port, KPC-2, KPC-3. See photo for radio compatibility.
Includes:
MFJ-5084YH Cable (see photo for pinout)
MFJ-5080YV Cable (see photo for pinout)
On line manual.
Microsoft Word - 1272B_9D.DOC (packet-radio.net)
Page one has:
MFJ-1272B microphone switches were designed to be used with any
radio that has a standard, round, 8-pin microphone connector. Because
many TNCs have different connectors, MFJ offers 5 models:
MFJ Model Number TNC and Multimodes
MFJ-1272B All MFJ TNCs, TAPR TNC II clones, and PK 12/96/900
MFJ-1272BX PK-232
MFJ-1272BYV KAM® VHF port, KPC-2, KPC-3
MFJ-1272BYH KAM HF port
MFJ-1272BZ PK-88