Icom 207H Dual Band Mobil..... I have preformed this mod on my IC-207H mobile 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 400-479 TX & RX 849-950 RX The Transmitter will work and transmit at ALL of the listed This mod is easy to preform and takes about 10 minutes to accomplish. NEWMEXDUKE@aol.com