I think you can use a standard shielded network cable for a mike
extension. Worse case, you might have to put a choke on it. I've read of
other folks using cat five extensions for this with no problems.
I really would never consider the 200 watt version, takes more power, only
gains you 3 db, and one more thing to go wrong. The only real complaint I
have with this radio is Kenwood went to a smaller power connecter, so old
power cords won't work. I wish someone made a pig tail adapter for this.
73s
Butch Bussen
wa0vjr