kmc-41

So I have a TK-2180 that I use for my volunteer department. A few months ago I tried to use a used KMC-41 mic. When I plugged the mic into my portable, it appeared to be very sensitive. I could flick the microphone and it would transmit. Whenever I switched zones the TX light would display...

I bought a used KMC-41 mic to use on my volunteer department's TK-5210, we have one other KMC-41 that works fine on the radio however we have two people working so we need another one and the department didn't want to purchase another one bought one used, unfortunately the KMC-41 I bought will...