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[N2MIR]

Does anyone know what desk mic would work on this radio. It says the mic impedance is 2k. I have been searching on Yaesu and other places but no info?

[N5XJT]

Is the connector 4 pin, 8 pin or modular?  If 8 pin most any 8 pin Yaesu mic will work.

[N2MIR]

Just got a reply from Yaesu tech. YAESU does not have a desk mic that will work on this radio due to the 2k impedance. Nor will any other pre amp mic on the market work.

[WA3SKN]

There is no "plug&play".
This radio uses the mh48a6ja mic.  It uses a 2000 ohm electret element and a 6 (six) pin RJ connector 6p6c.  Other desk mics can be made to work, but you need to make a adapter cable.
are you still interested?

-Mike.

[N3VET]

i HAVE A JDI JD-MD1   DESK MIKE  ON MY FTM 300    WORKS GREAT   HAS THE MODULAR JACK ON IT 
 IM SURE IT WILL WORK  ON YUR  YEASU 3100R/E
73 bRUCE n3vet

[K6CPO]

Does anyone know what desk mic would work on this radio. It says the mic impedance is 2k. I have been searching on Yaesu and other places but no info?

I use a Heil headset with a 600 ohm impedance on a Yaesu FTM-100 with the same 2K impedance with no adverse results. I've also used it on other Yaesu radios with the same 2kΩ impedance with no issues. The only time I had any reports of low audio was when I tried a Yaesu MD-100 desk microphone (500Ω impedance) on an FTM0350AR. I didn't play with the mic gain settings at the time. That is something I'm going to have to revisit.