Dcs Operation - Vertex Standard FT-857 Operating Manual

No-002 [144MHz ARS] or Menu Mode No-003 [430MHz ARS] (see page 54).
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 [F] key momentarily, then rotate the MEM/VFO CH 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 appear 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 allowed 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.

DCS Operation

Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more advanced tone system that is
less susceptible to false triggering than CTCSS. A DCS Encoder/Decoder is built into your transceiver, and operation is
very similar to that described above for CTCSS.
1. Press the [F] key momentarily, then rotate the MEM/VFO CH knob, as needed, until Multi Function Row "e" [TON, -
----, TDCH] appears on the display.
2. Press the [A](TON) key four times to activate the DCS Encoder/Decoder (the "DCS" icon will appear on the display).
The receiver will remain muted until a matching DCS code is received on an incoming signal.
3. Press and hold in the [B] key for one second. This instantly recalls Menu Mode No-033 [DCS CODE].
4. Rotate the DIAL to select the desired DCS code, then press and hold in the [F] key for one second to save new setting
and exit to normal operation.
5. Press the [A](TON) key once to cancel DCS operation (the "DCS" icon will disappear).
DCS Search Scanning
In operating situations where you don't know the DCS code being used by another station, you can command the radio to
listen to the incoming signal and scan in search of the code being used.
To scan for the DCS code in use:
1. Press the [F] key momentarily, then rotate the MEM/VFO CH knob, as needed, until Multi Function Row "e" [TON, -
35
FCC ID: K66FT-857
Operating Manual
Vertex Standard Co., Ltd.