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Thread: Quantar Microphone

  1. #1
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    Default Quantar Microphone

    We still service Motorola Quantar radios. It would be nice to know if there is still a compatible microphone for the Quantar, the HMN1001B was discontinued long ago.

    Thanks

    J Shearer


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    You could rewire an 8pin microphone with the 6pin cable. Have you checked eBay for that mike?
    Apparently NOT a radio professional.

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    I have, the problem with being Federal, we cannot officially purchase items from Ebay, it would have to come from my pocket book if I had to take that route. thanks for the response.

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    How does one re-wire a 8-pin mic to 6-pin?

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    Quote Originally Posted by Chief801 View Post
    How does one re-wire a 8-pin mic to 6-pin?
    You could always build an adapter. Female jack, male plug.

    There will be five useful lines, common to both handsets: (telephone style)

    - PTT
    - Ground
    - TX audio (mic)
    - RX audio (ear piece/receiver)
    - VCC (power for amplified mic)

    It’s possible power may be on the mic line with a DC blocking capacitor in series

    If all you need is a “mic”, (no RX audio) you can likely use a maxtrac mic (or equivalent) with the adapter. RX audio available from front speaker, if equipped.

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    motorola_otaku (Jun 17, 2019)

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    Quote Originally Posted by Mars View Post
    You could always build an adapter. Female jack, male plug.
    This is the route I would take. The pinout for the RJ11 jack on the Quantar is in the service manual, and pinouts for Maxtrac/CDM/MCS mics are on Batlabs and Repeater Builder.
    "The Girl Scouts found several hungry REACT members at the finish line..."

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    Mars (Jun 17, 2019)

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    Ok thank you...