I Optional Voice Scrambler Operation; Basic Operation - Icom IC-M503 Insrtuction Manual

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BASIC OPERATION

I Optional voice scrambler operation

ï ï 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 UT-98 or UT-112 is necessary. See p. 16
for selecting the unit. Ask your dealer for details.
q Select an operating channel other than Channel 16 and
70.
w While pushing and holding [HI/LO], push [DIMMER] to tog-
gle an optional scrambler function ON or OFF.
• "SC" appears.
e To turn the scrambler function OFF, repeat step w.
• "SC" disappears.
[Example]: Programming scrambler code 127.
+ POWER
16
Enter set mode
10
16
Push one or
more times.
Set mode
ï ï Programming scrambler codes
There are 128 or 32 codes (0 to 127 or 1 to 32) available for
programming. In order to understand one another, all trans-
ceivers in your group must have the same scramble code.
This function may not be available depending on dealer set-
ting.
q Turn power OFF.
w While pushing and holding [16], turn power ON to enter
set mode.
e After the display appears, release [16].
r Push [16] one or more times to select the scrambler code
item.
• "Scrambler code" appears.
t Rotate the channel selector to select the desired scram-
bler code.
y Turn power OFF, then ON again to exit set mode.
Select code
Scrambler code item