Family Radio CTCSS 'Type 2' Encoder and Decoder
CMX808A
1.6.5 Rx Tone Table
The following table lists the commonly used CTCSS tones together with the values for programming the
CTCSS RX PROGRAM register $84.
N.B. The values for byte 1 and 2 below apply to tone address 0 only. These values will vary depending on
the location they are programmed into.
Freq.
(Hz)
67.0
69.3
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8
97.4
100.0
Byte 1
(Hex)
03
04
04
04
04
04
04
05
05
05
05
05
05
Byte 2
(Hex)
DC
0D
42
52
87
98
CF
06
18
50
8B
C2
CF
STANDARD TONES
Freq. Byte 1 Byte 2
(Hz) (Hex) (Hex)
103.5
06
0B
107.2
06
48
110.9
06
86
114.8
06
C4
118.8
07
03
123.0
07
43
127.3
07
83
131.8
07
C4
136.5
08
06
141.3
08
48
146.2
08
8A
151.4
08
CD
156.7
09
42
Freq.
(Hz)
162.2
167.9
173.8
179.9
186.2
192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
Byte 1
(Hex)
09
09
0A
0A
0B
0B
0C
0C
0C
0D
0D
0E
0E
Byte 2
(Hex)
86
CA
43
88
02
48
03
4A
C7
45
C4
43
C3
Freq.
(Hz)
62.5
64.7
159.8
Byte 1
(Hex)
03
03
09
Byte 2
(Hex)
9C
CB
4C
NON-STANDARD TONES
Freq. Byte 1 Byte 2
(Hz) (Hex) (Hex)
183.5
0A
C6
189.9
0B
41
196.6
0B
87
Freq.
(Hz)
199.5
206.5
229.1
Byte 1
(Hex)
0B
0C
0D
Byte 2
(Hex)
C3
0A
83
© 1999 Consumer Microcircuits Limited
16
D/808A/5