1 Disconnect the power and antenna.
2. Remove the top cover.
3. Locate circuit board positioned vertically behind the front panel.
4. Locate and remove diodes 29 & 30.
5. Reassemble radio
6. Reset the microprocessor. (Press and hold [A=B] and turn power on)
Note: Factory diode set-up: IN-D22,29,30,32
IN but clipped by factory-D23,24 Empty position=D17,18,20
RANGE: 130-170 MHz & 422.2-463 MHz