Optional Voice Scrambler Operation; Basic Operation - Icom IC-M603 Instruction Manual

3

BASIC OPERATION

■ Optional Voice scrambler operation

D Activating the scrambler function
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
function, an optional scrambler unit is necessary. See pages
45 and 50 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 [SELECTOR] to select the desired channel other
than Channel 16 and 70.
w Push [F], then push [0] to turn the Voice scrambler func-
tion ON.
• "SCRAM" appears.
e To turn the scrambler function OFF, repeat step w.
• "SCRAM" disappears.
[Example]: Programming scrambler code 8.
Push
9 ˘Scan Type
Scan Timer
16
+ POWER
Beep
Internal Speaker
to enter
Contrast
Foghorn Frequency
Set mode
Radio Power
12
--Set Mode--
Rotate
to select item.
≥
D Programming scrambler codes
There are 32 codes (1 to 32) or 128 codes (0 to 127)* avail-
able 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 func-
tion may not be available depending on dealer setting.
*Depends on the installed scrambler unit.
q While pushing and holding [16•C], push [POWER] to
enter Set mode.
• Turn power OFF in advance.
w After the display appears, release [16•C].
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 Set mode.
--Set Mode--
Beep ≤
Internal Speaker
Contrast
Foghorn Frequency
Radio Power
Scrambler Type
to select code.
˘Scrambler Code ≥
Select
Push
--Set Mode--
Rotate
Scrambler Code
˘5 Select
4
3
2
<ENT˘OK>
Push
≤
≥