Subject FT-920 Mod The following mod is for USA MARS/CAP operation 1-remove bottom cove 2-remove dsp unit and cut or remove green wire that connected between r2544and q2510 3-replace dsp unint 4-press and hold step and lock button and power on 5-enter 1984129 than oress ent 6-test the radio for correct oper 7trun the radio off and replace bottom cover 8-the modification is now completed please post on you wab site for radio mods this mods dose work i done it to my ft920 thankyou anthony fernandez 136franklin st elizabeth nj 07206 email tony1576@juno .com