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HEIL ICM icom only mic.

Discussion in 'Ham Equipment' started by 190, Oct 25, 2008.

  1. 190

    190 Active Member

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    has anyone tried one of the heil icm icom only mic.?? they say they are for the older pre-pro icoms with the low output front ends but will work with the newer 706 series and the 756pro series if you turn the mic gain back. i got a new 706mk2g and a 756pro2 and was looking for any feed back from anyone useing those mics on either one of these radios. thanxs.


     
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  2. W0FRG

    W0FRG Member

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    190,

    Try this link to Heil Audio. I use a Heil IC on my 746 Pro and get get reports. Also used it on my 751 too with great reports.

    All Things iCOM - Amateur Radio - Heil Sound
     
  3. 190

    190 Active Member

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    i ended up buying one a few months ago for my 706mk2g. works great. thanx.
     
  4. Riverman71

    Riverman71 Part-time Member

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    Anyone used one of these on a IC-7200?
     
  5. jon666

    jon666 Sr. Member

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    i use one on my 7300 works great
     
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  6. Riverman71

    Riverman71 Part-time Member

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    Great!
    Did it plug into your radio straight out of the box, Jon, without any modifications?
     
  7. Hurricane145

    Hurricane145 Active Member

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    You should be able to as long as you have the right adapter cable, if one is even needed at all.
    I had one for a while on a 746 Pro and it worked just fine. They have very "hot" sensitivity.
    You don't need much mic gain.
    Really there are several electret elements out there that are just as good I think. You can brew up your own electret mic for a lot less money than the Heil. The only thing I found that was all that special about the iCM mic was that the electret element seems to have the biasing built into the element itself. I sure couldn't find a biasing resistor anywhere else inside the mic or connector
    You can buy new inexpensive studio mics on Ebay that work great for the housing of a handpicked electret mic. The electret elements are very inexpensive, usually $5 or less.
    I picked a couple for high sensitivity and a flat response.Panasonic had a good one.

    I found I preferred to use a dynamic mic so went with a Heil PR-781. It is rather expensive too but I didn't care at the time.
    It is a talk up close end fire (talk directly into the front of it) mic so doesn't pick up much background noise in the room which I have.

    A visit to the Heil website should have all the info about the mics you'll need. Bob is good about answering emails too.
     
    #7 Hurricane145, Oct 9, 2018
    Last edited: Oct 9, 2018
  8. Riverman71

    Riverman71 Part-time Member

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    Good info.
    Thanks!
     
  9. Ranch55

    Ranch55 Well-Known Member

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    I also use the Heil ICM microphone on my 7300 .....
    It comes with the Icom microphone connector attached to the mic. The mic cord and connector does not disconnect from the microphone.
    As the model name implies, the Heil ICM is an Icom specific microphone.
    On my 7300, I was using a Heil PR40, with mic gain set at 65%.
    Using the ICM, my mic gain is set at 12% ......
    Yes, it will connect to your 7200 .......
    It seems to be a very good match for the Icom transceivers.
     
    #9 Ranch55, Oct 9, 2018
    Last edited: Oct 9, 2018
  10. Riverman71

    Riverman71 Part-time Member

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    Thank you, Ranch!
     
  11. w9cll

    w9cll W9WDX Amateur Radio Club Member

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    The ICOM HM-103 was a Heil Element as well. This is the Mic that came with the 706
     
  12. jon666

    jon666 Sr. Member

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    yes its made for icom radios icm .icom communication microphone
     
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  13. 26sd782

    26sd782 Member

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    Works Great on my 7300
     

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