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From: Tim AL7DS Subject: ICOM IC-2AT, IC-02AT Those Tantalizing Two's. THOSE TANTALIZING TWO'S, 73' MAGAZINE, JUNE 1986 AT PAGE 60.MODIFICATION FOR THE KENWOOD 2600:Locate the two diodes standing on end with Teflon covering the top part of their leads, which at one time were soldered together, broken, and then resoldered. Simply clip these two leads to unlock the transmitter, but be sure to reset the microprocessor by pushing the reset button before the set is capable of transmitting on any frequency at 150 MHz. MODIFICATION FOR THE KENWOOD TS-430S: Unplug 3 wire plug on the RF board that mates with socket 10. When looking at the top front of the radio, it's to the left front side right beside a larger white plug. You'll need to carefully examine the circuit board and locate the number 10 with a circle around it to insure you have the right plug. MODIFICATION FOR THE KENWOOD 940: Locate IC number 109. Now find diode 130 and cut it for all band transmit. If you want just Mars coverage, locate IC 111 and 112, and snip diode 135 beside it Kenwood 930. MODIFICATION FOR THE ICOM IC-2AT: To cover portion of 150 MHz range and preserve ham band. The IC-02AT modifications are valid only for units with serial numbers below 34000. Open the radio and flip an unmarked but quite accessible switch. MODIFICATION FOR THE ICOM IC-720: Snipping the light blue wire that's at the very end of the top hatch cover to the left middle side of the transceiver. Your transmitter is now unlocked. MODIFICATION FOR THE ICOM IC-735: Cut diodes D33 and D34 that are standing on end near the microprocessor section toward the rear top of the radio. Your transmitter is now unlocked. MODIFICATION FOR THE ICOM IC-745: Locate the RF board on the side of the radio and cut the light brown wire at jack 7, which is going to pin 1. Your transmitter is now unlocked. MODIFICATION ICOM FOR THE IC-751: Locate the RF board on the side of the radio and cut the black wire going to pin 1 of jack 2. Your transmitter is now unlocked. MODIFICATION FOR THE ICOM M-700 MARINE: Transceiver Despite that the literature says, no lock-out is employed. For Ham Frequencies on 40, 80 or 160 meters, set the mode switch to the hard left position of A3, to enable the lower sideband filter all marine HF uses upper sideband. FRANK W9MKV BITNET: REID |
