I have a GP transmitter TU, range "F". It is used and has an historic 6390 kcs. logged on the chart. ( Probably from the last raid on Yap. ) Used, but the front panel is perfect. Lotsa knobs to adjust, too bad the transmitter was just too big and complicated for me. Reasonable offer? fob zip 97365 ( because that does add up. ) -Hue Miller