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Transmitting A Tone; Activating The Tone Function; Selecting A Tone Frequency; Tone Freq. Id Scan - Kenwood TS-480HX Instruction Manual

Hf/ 50 mhz all mode transceiver
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7 ENHANCED COMMUNICATIONS

TRANSMITTING A TONE

In general, FM repeaters require the transceiver to
transmit a sub-audible tone to prevent other
repeaters on the same frequency from locking each
other up. The required tone frequency differs among
repeaters. Repeaters also differ in their requirements
for either continuous or burst tones. For the
appropriate selections for your accessible repeaters,
consult your local repeater reference.
After completing the tone settings, pressing and
holding Mic [PTT] causes the transceiver to transmit
the selected tone. If you have selected a 1750 Hz
tone, the transceiver sends a 500 ms tone burst each
time transmission starts.
If you store tone settings in a memory channel, you need not
Note:
reprogram each time. Refer to "MEMORY FEATURES" {page 50}.
■

Activating the Tone Function

1 Confirm that FM mode has been selected on
the VFO(s) {page 19}.
•
When using 2 VFOs, you must select FM
mode on both VFOs.
2 Press [NB/T/ 7].
•
"T" appears.
You cannot use the Tone function with the CTCSS
Note:
function.
■

Selecting a Tone Frequency

1 While "T" appears (Tone function is ON), press
[NB/T/ 7] (1 s).
•
The current tone frequency appears.
The default is 88.5 Hz.
2 Turn the MULTI control to select the desired
tone frequency.
•
The available tone frequencies are listed in
the following table.
3 Press [MTR/ CLR] to complete the setting.
32
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N
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0
0
6
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1
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0
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1
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1
3
1
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1
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2
1
1
3
Note:
◆
You can select a tone frequency independent of a CTCSS
frequency.
◆
When 1750 Hz is selected, the transceiver sends a 500 ms
tone burst each time transmission starts. You cannot
transmit 1750 Hz tone manually.

TONE FREQ. ID SCAN

This function scans through all tone frequencies to
identify the incoming tone frequency on a received
signal. You may find this useful when you do not
know the tone frequency that the repeater uses.
1 While the Tone function is ON ("T" is visible),
press [NB/T/ 7] (1 s).
•
The current tone frequency appears.
2 Press [SCAN/ SG.SEL] to activate the Tone
frequency ID scan.
•
While the transceiver is receiving a signal, "T"
blinks and every tone frequency is scanned.
When the tone frequency is identified, the
transceiver stops scanning and the identified
frequency is displayed.
•
Press [SCAN/ SG.SEL] to stop scanning while
the tone frequency ID scan is active.
•
Press [SCAN/ SG.SEL] again to resume
scanning.
Received signals are audible while scanning is in progress.
Note:
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