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5
CONVENTIONAL OPERATION
' ' Call procedure
When your system employs tone signalling (excluding CTCSS and
DTCS), the call procedure may be necessary prior to voice trans-
mission. The tone signalling employed may be a selective calling
system which allows you to call specific station(s) only and prevent
unwanted stations from contacting you.
q Select the desired Tx code channel or 5-tone code according to
your System Operator's instructions.
• This may not be necessary depending on programming.
• Refer to the next page for selection.
w Push the call switch (assigned to one of the dealer programma-
ble switches: [P0], [P1], [P2], [P3], [S1] and [S2]).
e After transmitting a 5-tone code, the remainder of your commu-
nication can be carried out in the normal fashion.
Selective calling
P
P
P
0
1
2
1
2
4
5
7
8
0
17
P
P
P
P
0
1
2
3
1
2
3
4
5
6
7
8
9
0
P
P
P
P
P
0
1
2
3
3
1
2
3
3
6
4
5
6
7
8
9
9
0
Non-selective calling
P
P
P
P
0
1
2
3
P
0
P
1
P
2
P
3
1
2
3
1
2
3
4
5
6
4
5
6
7
8
9
7
8
9
0
0
P
0
P
1
P
2
P
3
1
2
3
4
5
6
7
8
9
0
P
P
P
P
0
1
2
3
1
2
3
4
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6
7
8
9
0
P
P
P
P
0
1
2
3
1
2
3
4
5
6
7
8
9
0
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