Icom 207H Dual Band Mobil..... I have preformed this mod on my 2 207H mobil's with success, but doing this mod is AT YOUR OWN RISK..... remove the 4 screws ataching the bottom cover and remove the cover. (I had to use a small screwdriver to pry on the cover. It's made to fit tight) with face toward you and belly up look to far right of board and close to you locate a row of SMT diodes 3 on top then a shift to right and a few more. The three are in a PERFECT row top to bottom! count from the top of the row 1 2 3. Remove the # 2 & 3 diodes. Now continue looking down from there and you will see a resistor sticking up in the air (W14). Clip the lead off of the resistor. Reassemble the radio and preform a CPU reset by holding the Set and S.MW buttons while turning the radio on...(page 69 of manual). You now will have : 118-135 RX (stock) 136-174 TX & RX 320-399 RX (hmmm whats there? I've heard a local radio station DJ at a remote location talking to the station) 400-479 TX & RX 849-950 RX The Transmitter will work and transmit at ALL of the listed TX freqs. and the power seems to be fairly broad banded and can handle it... I now use my mobils as Ham AND GMRS. One less piece to lug around!