GE LBI-31482, Руководство по обслуживанию

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DETERMINATION OF TONE
FREQUENCIES
The Pager can receive and decode two-tone sequential sig-
nals coded in the GE Type 99 format or the Motorola format.
The GE tone frequencies range from 517.5 Hz to 967.5 Hz.
Motorola tone frequencies range from 288.5 Hz to 1433.4 Hz.
The Pager is capable of both Individual and Group Call.
However, the Group Call will operate only with the Quik-Call
II signaling format.
GE FORMAT
INDIVIDUAL CALL
Tables 1 and 2 enable the technician to determine the tone
frequencies without opening the radio to examine the reed net-
works.
For example, assume the paging number to be 123. The
first digit of the paging number is a 1. Look in Table 1, and
read down the column labeled “100’s Digit” to a 1. Read hori-
zontally across to the column labeled “10’s Digit”. The tone
group is B. The second digit of the paging number is a 2. The
tone number is B2. Look in Table 2 and down the column la-
beled “Tone Designator” to find B2. Read horizontally across
to the column labeled “Tone Frequency”. The first tone fre-
quency is 787.5 Hz.
To determine the second tone frequency look in Table 1 and
as before, find the first digit of the paging number 1. Read
horizontally across to the column labeled “1’s Digit”.
The second tone group is A. The third digit of the paging
number is a 3 and the Tone Designator is A3. In Table 2 read
down the column labeled “Tone Designator” and find A3. Read
horizontally across the column labeled “Tone Frequency”. The
second tone frequency is 802.5 Hz.
For different paging numbers, locate the first digit in the
“100’s Digit” column and determine the tone frequencies as
described in the example. For a complete description of tone
applications see DATAFILE BULLETIN DF-5000-3A.
Table 1 - Tone Groups
100’S
DIGIT
10’S
DIGIT
1’S
DIGIT
For 1st
Tone
For 2nd
Tone
0
1
2
3
4
5
6
7
8
9 A
B
B
A
C
C
C
A
B
Not Used
A
A
B
B
C
A
B
C
C
Table 2 - Tone Generator
TONE
GROUP
TONE
DESIGNATOR
TONE
FREQUENCY
A0
Al
A2
A3
A4
A5
A6
A7
A8
A9
682.5 Hz
592.5 Hz
757.5 Hz
802.5 Hz
847.5 Hz
892.5 Hz
937.5 Hz
547.5 Hz
727.5 Hz
637.5 Hz
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9 652.5 Hz
607.5 Hz
787.5 Hz
832.5 Hz
877.5 Hz
922.5 Hz
967.5 Hz
517.5 Hz
562.5 Hz
697.5 Hz
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9 667.5 Hz
712.5 Hz
772.5 Hz
817.5 Hz
862.5 Hz
907.5 Hz
952.5 Hz
532.5 Hz
577.5 Hz
622.5 Hz
Diagonal Tone
742.5 Hz
QUIK-CALL II FORMAT
INDIVIDUAL CALL
Tables 3 and 4 are used to determine the Quik-Call II
tone frequencies.
The first digit of the code determines the tone groups
used in the code (See Table 3). Then Table 4 is used to deter-
mine the actual tone frequencies.
Table 3 - Quik-Call II Code Numbers
FIRST DIGIT
OF
CODE
GROUP FROM
WHICH TONE A
IS SELECTED
GROUP FROM
WHICH TONE B
IS SELECTED
1 1 1
2 2 2
3 1 2
4 4 4
5 5 5
6 2 1
7 4 5
8 5 4
9 2 4
0 4 2
A 3 3
For a code of 124, the tone groups used are shown in Ta-
ble 3. (Tone A and Tone B are both located in Tone Group 1.)
Tone A is tone number 2 in Tone Group 1, and Tone B is
tone number 4. Refer to the following examples for addi-
tional information.
EXAMPLE 1 - Code 098:
The digit “0” in Table 3 (First Digit of Code) shows that
Tone A is in Tone Group 4, and Tone B is in Tone Group
2 as shown in Table 4.
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 3 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.
GROUP CALL
In Group Call application, the Tone Group is determined
by Table 5, while the frequency is determined by Table 4.
Refer to the following examples.
TONE
NO.
TONE
GROUP 1
TONE
GROUP 2
TONE
GROUP 3
TONE
GROUP 4
TONE
GROUP 5
TONE
GROUP 6
1 349.0 Hz 600.9 Hz 288.5 Hz 339.6 Hz 584.8 Hz 1153.4 Hz
2 368.5 Hz 634.5 Hz 296.5 Hz 358.6 Hz 617.4 Hz 1185.2 Hz
3 389.0 Hz 669.9 Hz 304.7 Hz 378.6 Hz 651.9 Hz 1217.8 Hz
4 410.8 Hz 707.3 Hz 313.0 Hz 399.8 Hz 688.3 Hz 1251.4 Hz
5 433.7 Hz 746.8 Hz 953.7 Hz 422.1 Hz 726.8 Hz 1285.8 Hz
6 457.9 Hz 788.5 Hz 979.9 Hz 445.7 Hz 767.4 Hz 1321.2 Hz
7 483.5 Hz 832.5 Hz 1006.9 Hz 470.5 Hz 810.2 Hz 1357.6 Hz
8 510.5 Hz 879.0 Hz 1034.7 Hz 496.8 Hz 855.5 Hz 1395.0 Hz
9 539.0 Hz 928.1 Hz 1063.2 Hz 524.6 Hz 903.2 Hz 1433.4 Hz
0 330.5 Hz 569.1 Hz 1092.4 Hz 321.7 Hz 553.9 Hz 1122.5 Hz
Table 4 - Quik-Call II Tone Frequencies and Groups
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 Group
Calls to 40.
NOTE
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