Heil PS-IC

All of the Heil 'iC' elements were designed exclusively for iCOM - thus the "iC"  label.   iCOM is the only transmitter that provides  +8 volts  DC of phantom power on the microphone line.   Both the A.C. audio of the microphone and the + 8 volts DC is carried on the same mic lead.   To my knowledge, the Flex does not provide the + 8 volts of phantom power that is used to bias the F.E.T. in the Heil 'IC' element.  

The logical and best microphone for the Flex will be a dynamic such as the Heil PR 781 for their blanked inputs.   For their unbalanced inputs, one will want to use the Heil HM 12.  Hope this helps you.  


For the headsets you will want to use one of the headsets with the dynamic elements.  Not the iC.  

Flex very wisely, chose to share the YAESU pin out instead of having a special adapter.   The Heil AD- Y will be the correct adapter for the headphones.   CC-1 Y for an unbalanced microphone with PTT and the CC-1 Y XLR -Y-BAL  for the balanced XLR microphones.

Hope this helps     Bob Heil, K9EID

I have a ICOM-HM36 microphone easily modifded to use with my 6700. As fare as I remenber , I only soldered the wire on pin 7 to pin 8.  That was all.  Do not to forget to switch on the bias in Radio Setup - Phone. No Quality differences with my previous HEIL.