Optional Voice Scrambler Operation - Icom IC-M1 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 UT-98 is necessary. Ask your dealer for de-
tails.
1 Select an operating channel
except channel 16 or weather
channels.
2 Push [ SCRM] for 1 sec.
SCN•
- "SCRM" appears.
3 To turn the scrambler function
OFF, repeat step 2.
- "SCRM" disappears.
[Example]: Programming scramble code 127.
USA
Voice scrambler OFF
SCRM
USA
Push and hold
USA
Voice scrambler activated
D Programming scramble codes
There are 128 codes (00 to 127) available for programming.
In order to understand one another, all transceivers in your
group must have the same scramble code.
1 Select an operating channel except channel 16 or weather
channels.
2 Make sure the scramble function is OFF, then push and
SCRM] until step 4.
hold [
SCN•
- "SCRM" appears.
3 While continuing to push [
selector to select the desired scramble code.
- The first click when rotating the channel selector shows the cur-
rently selected code.
4 Release [ SCRM].
SCN•
- The scramble code disappears from the function display but re-
mains in effect while the scramble function is activated.
After "SCRM"
appears,
rotate:
SCRM
[CH]
Set desired scramble code here
BASIC OPERATION
SCRM], rotate the channel
SCN•
SCRM
USA
2
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