Icom IC-M502, VHF MARINE TRANSCEIVER Activating the scrambler, Programming scramble codes

■Call channel programming

qPush [CH/WX•U/I/C] several times

while pushing [H/L] to select the desired channel group (USA, INT, CAN) to be programmed.

w Push [16•9] for 1 sec. to select the call channel of the selected chan- nel group.

• “CALL” and call channel number ap- pear.

e Push [16•9] again for 3 sec. (until long beep changes to 2 short beeps) to enter call channel pro- gramming condition.

• Call channel number and channel group to be programmed flashes.

r Push [Y]/[Z] to select the desired channel.

t Push [16•9] to program the dis- played channel as the call channel.

• The call channel number and channel group stop flashing.

HM-127 REMOTE-CONTROL MICROPHONE 13

■Optional voice scrambler operation

Activating the scrambler

qSelect an operating channel, except channel 16 or weather

channels.

wPush [LO/DX•IC•SCR] while

pushing [H/L] to turn the voice scrambler function ON.

• “SCRM” appears.

e To turn the scrambler func-

tion OFF, repeat step w.
	Appears when the voice
• “SCRM” disappears.
	scrambler function is in use.

Programming scramble codes

There are 128 codes (00 to 127) available with UT-98 or 32 codes (01 to 32) available with the UT-112 for programming. In order to understand one another, all transceivers in your group must have the same scrambler code, as well as the same scrambler unit. The scrambler code is programmed in set mode. See pgs. 10, 33, 55 for details.

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