Often a Tone frequency is required
to
access repeaters.
For example, 88.5
Hz
may be needed
in
the U.S.A. or
Canada,
and
1750
Hz
is used
in
Europe. The Tone
frequencies listed below can be selected. On the
TH-22E/TH-42E, 1750 Hz also can
be
selected.
No.
Freq.
No.
Freq.
No.
Freq.
No.
Freq.
(Hz) (Hz)
{Hz}
(Hz)
01
67.0
11
97.4
II
21
136.5
31
192.8
02
71.9
12
100.0
22
,.,3m
203.5
03
74.4
13
103.5
23
146.2
210.7
04 77.0
14
107.2 24 151.4 34 218.1
05
79.7
15
110.9
25
156.7
35
225.7
06
82.5
16
114.8
26
162.2 36 233.6
07
85.rn7
118.8
27
167.9
37 241.8
08
88.5 8 123.0
28
173.8~
250.3
09
91.5
19
127.3
29
179.9
10 94.8
20
131.8
30
186.2
The following procedure allows you to select any of the
available tones.
1 Press
[F]
(1
s), [T/CTJ.
2 Turn the ENC/SQL control to select the desired Tone
frequency.
3 Press any key other than
[MONI]
or
[LAMP)
to
store
the selected value.
AUTO
PATCH
(U.S.A.
and
Canada Versions)
Some repeaters offer a service called Autopatch. This
feature allows you to dial a telephone number from your
transceiver and carry
on
a telephone conversation. This
repeater function cannot be used for commercial
transactions, but it can save lives when used
appropriately during emergencies.
Autopatch requires the use of a DTMF (Dual Tone Multi-
Frequency) keypad. The keypad includes the 12 keys
found on your telephone plus
an
additional 4 keys
(A,
B,
C,
D). These additional keys are required for various
control operations by some repeater systems.
•
Activating
the
Keypad
1 Press and hold [PTT].
2 Press keys in sequence to transmit tones.
• To generate single-frequency tones for test
purposes, press
[MONI]
before pressing a single
key from
[1] to [8].
31
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