Several new ICOM hand help equipment have the capability of wide freq coverage by executing only simple keypad commans. IC-2SA With the power off,hold the following keys down and turn it on. CALL,FUNC,LIGHT then release the keys. IC-2SAT With the power off hold the following keys down and turn it on: LIGHT,B.# and then release the keys. IC-24(New version only,old version need diodes cut) With the power off hold the following keys down,then turn it on: LIGTH,B,# then release the keys after the display comes on. With the power off hold the following keys down ,then turn it on: LIGHT,3. This enables the 100 Mhz digit in the IC-24. With the power off hold the following keys down,then turn it on: LIGTH,2. This enables the 10 Mhz digit. ICOM handies have a incredible wide frequency coverage and...with only a few keystrokes......you already modified the handies. 73s Lionel,KC4CLD