The Group Call format allows communication with all
radios in a group. The Super Group Call (in GE Tone sys-
tems) or Quick Call (in Motorola tone systems) allows com-
munications between all radios in a system.
GE TYPE 99 FORMAT
Tone frequencies in the GE tone system fall within the
range of 517.5 to 997.5 Hz.
In the GE tone format, the first tone can be from Tone
Group A (for individual or group calls) or from Tone Group
C (for super group calls). The second tone may be from
Tone Group B (for individual calls) or from Tone Group D
(for group or super group calls). The GE tone format is il-
lustrated as follows.
INDIVIDUAL
CALL
FORMAT
<...1.0 SEC...>
20%
TONE A
<...200 MS...>
25%
GAP
<...1.0 SEC...>
+300%,-0%
TONE B
GROUP
CALL
FORMAT
<...1.0 SEC...>
20%
TONE A
<...200 MS...>
25%
GAP
<...1.0 SEC...>
+300%, -0%
TONE D
SUPER
GROUP
CALL
FORMAT
<...1.0 SEC...>
20%
TONE C
<...200 MS...>
25%
GAP
<...1.0 SEC...>
+300%, -0%
TONE D
For example, assume the paging number to be 123; the
first digit of the paging number is a "1." Look in Table 2
and read down the column labeled "100’s Digit" to a "1."
Read horizontally across the column labeled "10’s Digit."
The Tone Group is B. The second digit of the paging num-
ber is a "2." The tone number is B2. Look in Table 3 and
down the column labeled "Tone Designator" to find B2.
Read horizontally across the column labeled "Tone Fre-
quency." The first tone frequency 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").
The second Tone Group is A. The third digit of the pag-
ing 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, refer to DATAFILE BULLETIN DF-
50003A.
Tone D is the diagonal tone used (in GE systems only)
when the first and second tone frequencies are the same.
The standard frequency for Tone D is 742.5 Hz, but may be
programmed with any tone frequency.
Table 2 - GE Tone Groups
100’s
Digit
10’s
Digit
For First
Tone
1’s
Digit
For Second
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
MOTOROLA FORMAT
Tone frequencies in the Motorola tone system are within
the range of 288.5 to 1433.4 Hz. In the Motorola tone for-
mat, the first tone may be one of three tones: A for Individ-
ual 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...>
(Minimum)
TONE A
<...NONE...>
(Minimum)
GAP
<...3.0 SEC...>
TONE B
GROUP
CALL
FORMAT
<...1.0 SEC...>
(Minimum)
TONE C
<...NONE...>
(Minimum)
GAP
<...3.0 SEC...>
TONE B
SUPER
GROUP
CALL
FORMAT
<....................................8 SEC....................................>
TONE B
The PCS radio is able to recognize the A, B, and C
tones. Individual, Group, and Quick Call formats
may be used simultaneously.
NOTE
LBI-38956
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