Ericsson LBI-39014, Maintenance Manual

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In the Motorola tone format, the first tone may be one to
three tones: A for individual call, B for Quick-Call and C for
Group Call. The second or final tone is B in all cases.
The Motorola tone format is illustrated as follows:
INDIVIDUAL CALL FORMAT
<-1.0 SEC MIN->
TONE A
<----NONE---->
GAP
<--3 SEC MIN-->
TONE B
GROUP CALL FORMAT
<-1.0 SEC MIN->
TONE C
<----NONE---->
GAP
<--3 SEC MIN-->
TONE B
QUICK CALL FORMAT
<-------------------------------8 SEC------------------------------->
TONEB
INDIVIDUAL CALL
Tables 4 & 5 may also be used to determine the tone fre-
quencies. The first digit of the code determines the tone groups
used in the code (See Table 4). Then Table 5 is used to deter-
mine the actual tone frequencies.
For a code of 124, the tone groups used are shown in Table
4. Tone A and Tone B are both located in Tone Group 1 and
Tone B is tone number 4. Refer to the following examples for
additional information.
EXAMPLE 1 - Code 098:
The "0" in Table 4 (First Digit of Code) shows that Tone A
is Tone Group 4 and Tone B is Tone Group 2 (See Table 5).
Tone number 9 in Tone Group 4 is 524.6 Hz
Tone number 8 in Tone Group 2 is 879.0 Hz
EXAMPLE 2 - Code 265:
The digit "2" in Table 5 shows that both Tone A and Tone B
are both in Tone Group 2.
Tone number 6 is 788.5 Hz
Tone number 5 is 746.8 Hz
Table 5 - Motorola Type Coder Numbers
First Digit of
Code
Group From Which
Tone A Is Selected
Group From Which
Tone B Is Selected
1
2
3
4
5
6
7
8
9
0
A
1
2
1
4
5
2
4
5
2
4
3 1
2
2
4
5
1
5
4
4
2
3
GROUP CALL (Quick-Call Format)
In Group Call application, the Tone Group is determined by
Table 7, while the frequency is determined by Table 6. Refer to
the following examples.
EXAMPLE 1 - Group Call Code 07 (also code 27 and 37):
The digit "0" in Table 7 shows the Tone B is in Tone Group
2 (TG2) along with 20 to 29 and 30 to 39. Tone number 7 in
Tone Group 2 is 832.5 Hz (See Table 6).
EXAMPLE 2 - Group Call Code 98 (also code 48 and 88):
The digit "9" in Table 7 shows that Tone B is in Tone
Group (TG4) along with 40 to 49 and 80 to 89. Tone number 8
in Tone Group 4 is 496.8 Hz.
Group Call code numbers range from 00 to 99. How-
ever, there are several group calls with the same Tone
B frequency. This limits the total number of groups
called to 40.
NOTE
Table 6 - Motorola Tone Frequencies and Groups
Tone
No.
Tone
Group 1
Tone
Group 2
Tone
Group 3
Tone
Group 4
Tone
Group 5
Tone
Group 6
1
2
3
4
5
6
7
8
9
0 349.0 Hz
368.5 Hz
389.0 Hz
410.8 Hz
433.7 Hz
457.9 Hz
483.5 Hz
510.5 Hz
539.0 Hz
330.5 Hz 600.9 Hz
634.5 Hz
669.9 Hz
707.3 Hz
746.8 Hz
788.5 Hz
832.5 Hz
879.0 Hz
928.1 Hz
569.1 Hz 288.5 Hz
296.5 Hz
305.7 Hz
313.0 Hz
953.7 Hz
979.9 Hz
1006.9 Hz
1034.7 Hz
1063.2 Hz
1092.4 Hz
339.6 Hz
358.6 Hz
378.6 Hz
399.8 Hz
422.1 Hz
445.7 Hz
470.5 Hz
496.8 Hz
524.6 Hz
321.7 Hz 584.8 Hz
617.4 Hz
651.9 Hz
688.3 Hz
726.8 Hz
767.4 Hz
810.2 Hz
855.5 Hz
903.2 Hz
553.9 Hz 1153.4 Hz
1185.2 Hz
1217.8 Hz
1251.4 Hz
1285.8 Hz
1321.2 Hz
1357.6 Hz
1395.0 Hz
1433.4 Hz
1122.5 Hz
Table 7 - Motorola Group Call Tone Groups (TG)
Tone Number Tone Group
00-09 TG2
10-19 TG1
20-29 TG2
30-39 TG2
40-49 TG4
50-59 TG5
60-69 TG1
70-79 TG5
80-89 TG4
90-99 TG4
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