Icom IC-M604A Instruction Manual - Page 18

3 BASIC OPERATION ■ Optional Voice scrambler operation D Activating the scrambler function The optional Voice scrambler provides private communications. In order to receive or send scrambled transmissions you must first activate the scrambler function. To activate the function, an optional scrambler unit is necessary. See pages 49 and 54 for setting and insatallation of the scrambler unit. Ask your dealer for details. D Programming scrambler codes There are 32 codes (1 to 32) or 128 codes (0 to 127)* selectable for programming when an optional scrambler unit is installed. In order to understand one another, all transceivers in your group must have the same scramble code. This function may not be available depending on the dealer setting. *Depending on the installed scrambler unit. The scrambler function automatically turns OFF when Channel 16 or 70 is selected. q Rotate [SELECTOR] to select the desired channel other than Channel 16 and 70. w Push [O], then push [0• SCRM ] to turn the Voice scrambler function ON. • "5%4#/" appears. e To turn the scrambler function OFF, repeat step w. • "5%4#/" disappears. q Push [POWER] to turn OFF the power. Hold down [16•9], and push [POWER] to enter Set mode. w After the display appears, release [16•9]. e Rotate [SELECTOR] to select the "5ETCODNGT%QFG," 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 "'ZKV," then push [ENT] to exit the Set mode. [Example]: Programming scrambler code 8. Push 9 16 + POWER to enter Set mode 5GV /QFG 5ECP 6[RG 5ECP 6KOGT 9: #NGTV $GGR +PVGTPCN 5RGCMGT %QPVTCUV 4( #VVGPWCVQT Rotate to select item. 5GV /QFG +PVGTPCN 5RGCMGT %QPVTCUV 4( #VVGPWCVQT (QIJQTP (TGSWGPE[ 4CFKQ 2QYGT 5ETCODNGT 6[RG 5ETCODNGT %QFG Rotate to select code. 5GV /QFG 5ETCODNGT %QFG  Select    '06 1- Select Push Push 12