Alico 610 Mods From David MClean (dmclean@dfw.net) Kc5nnv If you press the CALL key while turning on, you will get a channel scope demonstration. RX/TX mods: 1. Remove the power cable and antenna. 2. Remove the four screws (2 on each side) holding the case together. HOLD THE CONTROL HEAD AGAINST THE MAIN UNIT> 3. Remove the 2 screws holding the control head together. 4. Sepearate the front and back cover of the control unit. 5. Cut the red wire to allow reception in the Aircraft and the 800 MHz band. 6. Cut the blue wire to expand the TX and RX frequencies. 7. Reassemble the control head. 8. Reset the Microprocessor and reprogram you favorite settings. And/OR To expand Rx and/or Tx range on the DR610T Remove the back of the front panel. (Remove the 2 screws) Cut the RED jumper wire for Rx expansion only Cut both RED and BLUE wires for Tx Expansion. Reset the unit after the MOD by pressing and holding the F key while turning on. And/OR Open the removable face plate and cut the small blue and red wires. Gives extended RX and TX.. After effect: Ranges: Tx 138-173.995MHz Rx 108-173,995MHz (AM in the 108-135,995MHz range) 400-511,995MHz 800-998.9MHz (DR610E only!) You also have to close the 'D' solder pad on the RF board. The DR610E can also be modified by a keyboard sequence while in key-lock mode. Good luck. The author takes no responsibility for this modification but offers it in good faith. David Mclean From The Land of The Hams KC5NNV is Clear! [Dfw-Hams] http://www.dfw.net/~dmclean