Icom IC-M604A Instruction Manual

Also see for IC-M604A: Instruction manual Instruction manual

Contents

123 BASIC OPERATION■ Optional Voice scrambler operationD Activating the scrambler functionThe optional Voice scrambler provides privatecommunications. In order to receive or send scrambledtransmissions you must first activate the scrambler function.To activate the function, an optional scrambler unit isnecessary. See pages 49 and 54 for setting and installationof the scrambler unit. Ask your dealer for details.The scrambler function automatically turns OFF whenChannel 16 or 70 is selected.q Rotate [SELECTOR] to select the desired channel otherthan Channel 16 and 70.w Push [O], then push [0• SCRM ] to turn the Voicescrambler function ON.• “SCRAM” is displayed.e To turn OFF the scrambler function, repeat step w.• “SCRAM” disappears.D Programming scrambler codesThere are 32 codes (1 to 32) or 128 codes (0 to 127)*selectable for programming when an optional scramblerunit is installed. In order to understand one another, alltransceivers in your group must have the same scramblecode. This function may not be available depending on thedealer setting.*Depending on the installed scrambler unit.q Push [POWER] to turn OFF the transceiver. Hold down[16•9], and push [POWER] to enter Set mode.w After the Set mode screen is displayed, release [16•9].e Rotate [SELECTOR] to select the “Scrambler Code,”then push [ENT].r Rotate [SELECTOR] to select the desired scrambler code.t Push [ENT] to set and exit the scrambler code item.y Push [CLR], or rotate [SELECTOR] to select “Exit,”then push [ENT] to exit the Set mode. SelectSelectto enterSet modePOWER+Push916to select item.Rotateto select code.RotatePush Push[Example]: Programming scrambler code 8.