The MXT400 can be programmed with the MXT400 Programming software only! The Midland firmware on their software locks you out of anything on CHIRP. 1. You can change from FMN narrow 12.5KHz to FM wide 20KHz or 25KHz. NOTE: 25KHz not legal on gmrs anymore. 2. You can add on CH8 thru CH13 7 of your own programs. The other frequencies you will find are locked on all other channels. 3. You can use different receive and transmit CTCSS/DCS on each channel. You are no longer locked to just one send and receive!! MXT400 Programming software: https://www.dropbox....p_1.05.zip?dl=1 CABLE: USB to 3.5mm stereo connection programming cable :https://www.rtsystemsinc.com/USB-29A-Programming-Cable_p_748.html good luck / works for me Jay WQRE838
