Tone Search Scanning - Yaesu FT-857D Operating Manual

T
RANSMITTER
Mode No-083 [ TONE FREQ ] .
(2) Rotate the DIAL knob to select the
desired CTCSS frequency.
(3) When done, press and hold in the
[ FUNC ] key for one second to save
the new setting and exit to normal
operation.
5. With repeater shift activated, you can tem-
porarily reverse the transmit and receive fre-
quencies by pressing the [ B ]( REV ) key in the Multi Function Row "d" [ RPT, REV, VOX ] .
The "–" icon will blink while "Reverse" shift is activated. Press the [ B ]( REV ) key again
to revert to the "Normal" shift direction.
6. On many transceiver versions, the Automatic Repeater Shift (ARS) feature is enabled at
the factory. This feature automatically activates the appropriate repeater shift when you
are operating inside the designated 144 MHz or 430 MHz FM repeater sub-bands in
your country. If you wish to change the On/Off settings for the ARS, use Menu Mode No-
002 [ 144MHz ARS ] or Menu Mode No-003 [ 430MHz ARS ] (see page 97).
If your local repeaters need a 1750-Hz burst tone for access (typically in Europe),
press and hold in the front panel's [HOME] key to transmit the burst tone (FM
mode only).

Tone Search Scanning

In operating situations where you don't know the CTCSS tone being used by another station,
you can command the radio to listen to the incoming signal and scan in search of the tone
being used. To scan for the CTCSS tone in use:
1. Press the [ FUNC ] key momentarily, then rotate the SELECT knob, as needed, until
Multi Function Row "e" [ TON, – – –, TDCH ] appears on the display.
2. Press the [ A ]( TON ) key to activate CTCSS Encoder/Decoder; (the "TSQ" icon will ap-
pear on the display).
3. Press the [ C ]( TDCH ) key to start scanning for the incoming CTCSS tone.
4. When the radio detects the correct tone, it will halt on that tone, and audio will be al-
lowed to pass.
5. The CTCSS tone detected will be stored as the "current" tone, so it may be used for
memory storage purposes, and you may now exit to normal operation.
58
O
PERATION
FM T
RANSMISSION
67.0
82.5
100.0
123.0
151.4
171.3
189.9
210.7
250.3
CTCSS TONE FREQUENCY ( Hz )
69.3 71.9 74.4
85.4 88.5 91.5
103.5 107.2 110.9
127.3 131.8 136.5
156.7 159.8 162.2
173.8 177.3 179.9
192.8 196.6 199.5
218.1 225.7 229.1
254.1 – –
FT-857 Operating Manual
77.0 79.7
94.8 97.4
114.8 118.8
141.3 146.2
165.5 167.9
183.5 186.2
203.5 206.5
233.6 241.8
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