(136 - 174 MHz)
However, using Amateur Radio equipment to transmit in frequency bands that said equipment is not FCC type accepted for is illegal. I am not accountable or liable for what you do on your own to your own equipment. Use this information at your own risk. No warranty or guarantee is implied or given.
1) Hold down the second and third front function buttons while turning the IC-2100H on. Now turn it back off.
2) Carefully remove the large tuning knob.
3) Remove the two 2.5mm hex screws that hold the faceplate on.
4) Pull the faceplate straight of the body without tilting it (you run the risk of bending the pin connectors behind the faceplate). Turn the faceplate over and locate the main ic chip, set at a 45-degree angle. Just to the lower left and right of the IC, you will see the main pin connectors. Under the lower right corner of the left pin connector, you should see a marking on the pc board labeled as "D16". Just below this should be the matching diode, close to the bottom edge of the board.
5) Remove this diode. Use a low wattage soldering iron, or carefully pinch off with mini needle-nose pliers. Another option my brother, Jerry N9XMX , suggested was to remove about 1 mm of the trace on one side of the resistor. That way if you want to restore the radio to non-extended mode, you can solder it closed again. Carefully reassemble the radio(watch those faceplate pins!!)
Your radio is now modified to transmit on MARS/CAP frequencies, IF YOU HAVE THE NECESSARY PAPERWORK TO ALLOW YOU TO TRANSMIT ON MARS/CAP FREQUENCIES.
However, this is NOT, repeat NOT, legal for MURS, Business Band, or Public Service frequencies. The FCC can fine you and seize your radio(s).
© 2007 www.Cato2000.com All Rights Reserved