Icom IC-M504 - Manual (Page 17)

11
3
BASIC OPERATION
3
■ Optional voice scrambler operation
D 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
function, an optional scrambler unit is necessary. See pgs.
57, 62 for setting the scrambler unit. Ask your dealer for de-
tails.
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.
• “S
SC CR RA AM M” appears.
e To turn the scrambler function OFF, repeat step w.
• “S SC CR RA AM M” disappears.
D 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 in-
stalled. 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 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 “S
Sc cr ra am mb bl le er r C Co od de e,” 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 “E Ex xi it t,” push
[DIAL•ENTER] to exit set mode.
--Set Mode--
Scrambler Code
˘5
4
3
2
1
<ENT˘OK>
--Set Mode--
Dual/Tri
Beep
Contrast
Foghorn Frequency
Radio Power
Scrambler Type
˘Scrambler Code
--Set Mode--
˘Scan Type
Scan Timer
WX Alert
Dual/Tri
Beep
Contrast
Foghorn Frequency +
to enter set mode.
Push
to select code,
then push.
Rotate
to select item,
then push.
Rotate
Select
Select
[Example]: Programming scrambler code 5.