[Elecraft] Heil Proset KX3 Element?

[dyarnes]

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