Optional Voice Scrambler Operation; Basic Operation - Icom IC-M504 Instruction Manual

■ Optional voice scrambler operation

D Activating the scrambler
The optional voice scrambler provides private communica-
tions. In order to receive or send scrambled transmissions you
must first activate the scrambler function. To activate the func-
tion, an optional scrambler unit is necessary. See pp. 57, 62
for setting the scrambler unit. Ask your dealer for details.
The scrambler function automatically turns OFF when
Channel 16 or 70 is selected.
q Rotate [DIAL] to select an operating channel other than
Channel 16 and 70.
w While pushing and holding [H/L], push [LO/DX•IC•SCRM]
to turn the optional scrambler function ON.
• "SCRAM" appears.
e To turn the scrambler function OFF, repeat step w.
• "SCRAM" disappears.
[Example]: Programming scrambler code 5.
--Set Mode--
˘Scan Type
+
Push
Scan Timer
WX Alert
to enter set mode.
Dual/Tri
Beep
Contrast
Foghorn Frequency
D Programming scrambler codes
When an optional scrambler unit is installed, 32 codes (1 to
32) are available for programming. In order to understand
one another, all transceivers in your group must have the
same scramble code. This function may not be available de-
pending on dealer setting.
q Turn power OFF.
w While pushing [16•9], turn power ON to enter set mode.
e After the display appears, release [16•9].
r Rotate [DIAL] to select the "Scrambler Code," push
[DIAL•ENTER].
t Rotate [DIAL] to select the desired scrambler code.
y Push [DIAL•ENTER] to set and exit the scrambler code
item.
u Push [CLR], or rotate [DIAL] to select "Exit," push
[DIAL•ENTER] to exit set mode.
--Set Mode--
Rotate
Dual/Tri
Beep
Contrast
Foghorn Frequency
Radio Power
Scrambler Type
˘Scrambler Code
to select item,
then push.
Select

BASIC OPERATION

--Set Mode--
Rotate
Scrambler Code
˘5 Select
4
3
2
1
<ENT OK>
to select code,
then push.
3
3
11