Tone And Ctcss Operation; Autopatch Operations - Kenwood TH-26A Instruction Manual

4-6-3. Tone and CTCSS operation
Some repeaters require the use of a control signal to
activate the repeater. Several different methods are
currently in use.
In the United States sub-audible tones are sometimes
used. 38 different Sub-audible frequencies are possible.
With the use of the optional eTeSS unit (TSU-7) you will
be able to operate in a Tone Operated Squelch Mode.
When this option is installed and the eTeSS function has
been activated the radio will not open squelch until the
proper PL tone is received .
In Europe and United Kingdom a 1750 Hz tone is used in
transmit. Press and hold the 1750 / LAMP switch to
transmit with the access tone, you need not press the
PIT switch.
Since this tone is required in Europe and the United
Kingdom a 1750 Hz tone encoder is included with
models delivered to these countries.
• Tone Frequency Selection
1. Press the F key. The F indicator will begin to flash.
Press the TONE / CTeSS key with in 10 seconds of
pressing the F key. The current tone frequency will
show in the display.
2. Rotate the Tuning control to select the desired tone
frequency.
3. When the desired tone frequency is selected , the
previous mode is resumed 10 seconds after selection
or when the TONE! eTeSS key is pressed.
Tone Frequency(Hz)
67.0 82.5 97.4 114.8 136.5 162.2
192.8 233.6
71.9
85.4
100.0 118.8 141 .3 167.9 203.5 241 .8
74.4 88.5
103.5 123.0 146.2 173.8 210.7 250.3
77.0 91.5 107.2 127.3 151.4 179.9 218.1
79.7 94.8 110.9 131.8 156.7 186.2 225.7
• Tone/CTeSS Operation
Press the TONE / eTeSS key and select the deSired Tone
mode. When the T indicator appears in the display the
transmitter will transmit the desired tone. When the
eTeSS indicator appears in the display the transceiver
will transmit the desired tone and will also operate in
the Tone Squelch mode, i.e. squelch will not open until
the same tone is received as a portion of the incoming
receive signal. When no indicator is on the radio will
not make use of either tone feature .
4-6-4. Autopatch Operations (U.S.A. versions
only)
Some repeaters offset a service known as auto patch.
This feature allows you to dial a telephone number
from your transceiver and carry out a telephone
conversion , much like a care telephone, or cellular
telephone. This function requires the use of a DTMF
(Dual Tone Multi Frequency) pad . In addition to the
33