Enables more sensitive transmit above the 2 meter
band. (148 to about 162 MHz; after that, sensitivity drops off.)
Keeps sensitivity for the FM broadcast band.
Open the top of the radio by removing the 3 top screws and 2 side
screws. Look at the radio from the with the front panel facing you.
Note the silver rectangular box near the middle of the PCB marked
something like "9 MHz SSB Filter".
Move your eyes up from this filter toward the back of the radio.
Follow the ribbon cable up. Notice a wide white connector with
several colored wires in it on the back of the PCB.
The fourth wire from the left is a yellow wire. Cut this wire.
Rather than cutting it, you can remove the connector, stick a paper
clip in the side of the connector under the wire, push it in, and
pull the wire out. Be careful not to remove the other yellow wire.
Re-insert the connector back to its original place on the PCB.
Open the bottom of the radio. You will again need to remove 5
Look at the radio with the front panel facing you. Note 5 tiny
transistors behind the MENU button. Follow the trace from the
middle transistor to a hole just to the left of jack J8.
| | *
[XX] [XX] [XX] [XX] [XX] +-O *** J8
Solder wire into this hole ^
Solder a small wire into this hole. Be careful not to apply too
much heat; use a low-wattage soldering iron. Be careful not to
damage the PCB or the grey cable coming out of J8. Use a magnifying
Run the other end of the wire you just soldered to the front of
the radio and attach it to the yellow wire you just cut.
Re-assemble the radio.