I like Sennheiser microphones, since it has a XLR connector I think we assume it is a dynamic type microphone. The bad news is ICOM's use an electret microphone element which has a J-FET amplifier in it and requires a DC voltage to run it.
Originally Posted by W2WAW
There is a solution but you will need a preamp circuit. I am attaching a circuit that works very well and is made for a ICOM IC-718. The circuit uses a J-FET OP-Amp and if you choose to use it, follow the schematic as ICOM's are very sensitive as to how their "grounds" are hooked up.
I do not reply to Troll posts!