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Thread: Direct audio from MTM5400

  1. #1
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    Default Direct audio from MTM5400

    Hello everybody
    I'm working on a tetra gateway with mtm5400, and while looking at the installation manual I see there's a tx_audio and rx_audio pins on the accessory connector...
    I'm wondering can use them instead of speaker and microphone with audio transformers?
    Thanks.

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  3. #2
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    1 out of 1 members found this post helpful.

    Default Re: Direct audio from MTM5400

    Please check this site for the correct pins:
    https://db0wiz.de/mtm5400-via-urixb-mit-svxlink/

  4. Thanks c.magnum thanked for this post
  5. #3
    Junior Member Reputation: 13
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    Default Re: Direct audio from MTM5400

    Quote Originally Posted by starter View Post
    Hello everybody
    I'm working on a tetra gateway with mtm5400, and while looking at the installation manual I see there's a tx_audio and rx_audio pins on the accessory connector...
    I'm wondering can use them instead of speaker and microphone with audio transformers?
    Thanks.
    If I can ask a question on what you working on, are you doing the DMO gateway? and, is it possible to use an MTM5XXX radio as a gap filler or to repeat a TMO signal?

  6. Thanks c.magnum thanked for this post
  7. #4
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    2023-06-23
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    Default Re: Direct audio from MTM5400

    Quote Originally Posted by kideoIP View Post
    If I can ask a question on what you working on, are you doing the DMO gateway? and, is it possible to use an MTM5XXX radio as a gap filler or to repeat a TMO signal?
    For that you can use Gateway mode.

  8. Thanks c.magnum thanked for this post
  9. #5
    Junior Member Reputation: 13
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    Default Re: Direct audio from MTM5400

    Quote Originally Posted by 580-Gabor View Post
    Please check this site for the correct pins:
    https://db0wiz.de/mtm5400-via-urixb-mit-svxlink/
    I'm starting experiments. Thanks

    Quote Originally Posted by kideoIP View Post
    If I can ask a question on what you working on, are you doing the DMO gateway? and, is it possible to use an MTM5XXX radio as a gap filler or to repeat a TMO signal?
    Yes, I'm working on DMO Gateway. I'm not very familiar with TMO, but as es4tix said, I think it's possible.

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