This NCE RB01 radio base was used on my model railroad and is fully functional and in in excellent condition. It is the first generation RB01 version and is compatible with all NCE radio cabs. On my railroad the operating range from the RB01 to radio cabs exceeded 40'. The unit comes with the radio base, 7" antenna, 40" cab bus cable, and the NCE RB01 manual. Price: $60 shipped.
Note: NCE offers a mail in upgrade service for installation of radio receiver/transmitter boards in any of their plug-in cabs - a nice migration path.