[Elecraft] Heil Proset KX3 Element?

[Carl Jón Denbow]

Dave, et al:

Thanks for all the fine comments and feedback I've received both on the 
message board and by direct email message.  I do have the MIC BIAS "on' 
and the MIC BTN "off."  Another person suggested that I adjust the TX 
EQ, which I have done, basically boosting 2.4 KHz and above by 4db and 
rolling off 200Hz and below by 4db.  After making these adjustments, 
I've been told by a local ham who had heard the previous settings that 
my audio quality was improved; however, he quickly added the the 
Elecraft MH3 mic still sounded better even before the EQ adjustments.  
I'm not exactly sure what to make of this, since the Heil headset is, 
obviously, a much more expensive piece of equipment.   However, it's 
possible that making the conversion pigtail that you suggested might 
cure the problem.

I do have a Yamaha CM500 on order.  It'll be interesting to compare 
reports once that arrives.

73,

Carl

dyarnes wrote:
> Carl,
>
> Are you sure you have the the menus set correctly?  For the Heil Pro Set (“IC” model) MIC BIAS should be “on” and MIC BTN should be “off”.   I have one of those Heil Pro Set (IC) models, but haven’t tried it, or my Yamaha CM500, on the KX3.  I use the MH3.  The manual suggests that you can just plug the standard 3 ring “mini” plug into the jack and it will work, but you do need to set the bias.  It just sounds like you might not be getting proper bias.
>
> If you have a “computer” headset around you might try that.  Most of those are electrets.  I just wonder if the plug is “seating” properly so that everything is making proper contact.  I’d be tempted to make up a 3 ring mini to 4 ring mini pigtail.  I’ve read that some of the 3 ring mini plugs tend to vary slightly in actual size.  If that’s true, they might not seat properly into a 4 ring jack.
>
> Dave W7AQK
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Carl Jón Denbow, N8VZ
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