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Icom SM-5 Microphone

Discussion in 'Microphones, Speakers & Audio Processing' started by VK4FEEL, Jun 10, 2013.

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  1. VK4FEEL

    VK4FEEL Ham Member QRZ Page

    Hello All From Australia,

    As I am very new to this hobby and don't have a lot of technical know how I was wondering is it possible to get the Icom SM-5 desk microphone to work on a Yaesu FT890 transceiver.

    73's

    VK4FEEL
     
  2. WP2XX

    WP2XX Ham Member QRZ Page

    AFAIK, the SM-5 uses and electret element, and the Yaesu is designed to work with a dynamic mic. Check the pin-outs of the 890's mic connector. You'll need to figure out a way to connect the AF and PPT/ground lines, as well as provide power to the SM-5's mic element.

    http://ve5kc.amateur-radio.ca/ftp_files/icom_sm5_manual.pdf

    According to this manual, the AF and power travel on the same pin, pin 1. PTT is enabled between pins 5 and 6.

    http://www.ko4bb.com/Manuals/Yaesu/Yaesu_FT-890_Operating_Manual.pdf

    According to this manual, pins 5 and 6 enable PTT, but AF travels on pin 8 and there's no power coming from the rig at all.

    So in order to use the SM-5 with the 890, you'll need to devise a circuit to reroute the AF and provide power.
     
  3. KA0GKT

    KA0GKT Ham Member QRZ Page

    Disregard. I saw SM-5 and immediately thought Shure SM-5, a now discontinued though greatly sought after Low Z Dynamic Microphone used for Vocals.
     
    Last edited: Jun 17, 2013
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