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4-2 SETTING ATONE FREQUENCY
(1) SUBAUDIBLE TONE DECODER
FREQUENCY
The subaudible tone decoder frequency for the tone
squelch function can be set by dip switches on the
LOGIC-A UNIT. Be sure to disconnect the AC power
cable when setting the frequency.
1) Remove the bottom cover.
l
Remove 6 screws on the bottom cover and another
3 screws on each side of the front panel of the
repeater.
SUBAUDIBLE
TONE
TONE DECODER
FREQUENCY
67.0
01
02
71.9
03
74.4
04
77.0
05
79.7
06
82.5
07
85.4
08
88.5
09
91.5
10
94.8
11
97.4
12
100.0
13
103.5
14
107.2
15
110.9
114.8
16
118.8
17
18
123.0
19
127.3
4
5
1
2
3
ON
O N
ON
ON
ON
ON
ON
O N
ON
ON
ON
ON
O N
ON
O N
ON
Not assigned
O N
ON
ON
ON
ON
O N
ON
ON
ON
ON
ON
O N
ON
ON
O N
ON
O N
ON
O N
ON
2) Set the dip switches on SS as desired according to
the following chart.
l
The tone numbers are used for setting the sub-
audible tone decoder frequency with DTMF sig-
nals.
Example of setting dip switches (88.5 Hz)
SUBAUDIBLE
TONE
TONE DECODER
6
N U M B E R
FREQUENCY
131.8
136.5
141.3
22
23
146.2
24
151.4
25
156.7
26
162.2
27
167.9
28
173.8
179.9
30
186.2
31
192.8
32
203.5
33
210.7
34
218.1
35
225.7
36
233.6
241.8
37
250.3
38
BASIC PRESElTINGS
s3
4
1
2
3
ON
ON
O N
ON
ON
O N
ON
ON
O N
ON
ON
ON
ON
ON
ON
O N
O N
O N
ON
ON
ON
O N
ON
O N
ON
ON
ON
O N
ON
ON
ON
ON
O N
ON
O N
ON
O N
5
6
ON
ON
ON
ON
O N
O N
O N
O N
ON
ON
O N
O N
O N
O N
O N
O N
O N
O N
O N
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