Kenwood MC-80 with Yaesu FT857d

Discussion in 'Microphones, Speakers & Audio Processing' started by 9M2PJU, Apr 12, 2012.

Thread Status:
Not open for further replies.
  1. 9M2PJU

    9M2PJU Ham Member

    im new to this forum.
    i got unused kenwood mc80 electret condenser mic and a yaesu ft857d.
    can i use that mic with that transceiver ? i have made a converter for the pins.
  2. 9M2PJU

    9M2PJU Ham Member

    ft857d mic impedance is 200 - 10 k Ohm (Supplied microphone: 2 k Ohm). mc-80 is 700ohm. do i need an audio transformer or not ?
  3. KD8DEY

    KD8DEY Subscriber

    I don't see any reason off hand why it should not work if you wired the converter right.
  4. 9M2PJU

    9M2PJU Ham Member

    how about the impedance ?

    i have tested the converter. it works 100%
  5. KD8DEY

    KD8DEY Subscriber

    The Impedance falls within the listed range and should be fine. The Yaesu md-100a8x for the radio is listed as 500
  6. 9M2PJU

    9M2PJU Ham Member

    from the yaesu md-100 is 500 ohm unbalanced. im not sure about mc-80 mic either it's impedance are balanced or unbalanced.
  7. K1DNR

    K1DNR XML Subscriber

    Unbalanced. Balance/Unbalance has to do with the way the cable works, not the mic or the impedance. It is an unbalanced shielded cable, like coax.

    I assume the power for the mic is a battery in the mic? A condenser or electret mic needs power to work. That can come from the radio or from a battery. It depends.

    The biggest potential issue is going to be RF getting into the audio. That seems to be the number one issue. Google Mc-80 and you'll find a lot of anecdotal reviews and remedies.
  8. 9M2PJU

    9M2PJU Ham Member

    Thanks for the reply,
    my last question is do i need any audio transformer for this mic in between to the transceiver or not ? can i just rewire it's connector and plug it to the transceiver ?
Thread Status:
Not open for further replies.

Share This Page

ad: chuckmartin