[Elecraft] Behringer XM1800S Mic Does not work on k3

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Im trying to connect the Behringer XM1800S as an external mc on my K3. I have tried all of the configurations possible in the MAIN menu with no joy.  Before I break down ( and suffer my XYL's consternation) to buy a compatible Heil product, does anyone have any suggestions?  

I have the same setup I am trying to use on a Heil proset with no issues.  I suspect the mic is the primary issue since it is not an electret mic.
Any suggestions are appreciated.
PatAB8PS(former W8LNO)