FCC ID: K6620285X20
IC ID: 511B-20285X20
VX-3R Operating Manual
incoming CTCSS or DCS tone/code.
6.
When the radio detects the correct tone or code, it will halt on that tone/code, and audio will be allowed
to pass. Press the [BAND] key to lock in that tone/code, then press PTT to exit to normal operation.
R.F. Says: If the Tone Scan feature does not detect a tone or code, it will continue to scan indefinitely. When
this happens, it may be that the other station is not sending any tone. You can press the PTT switch to halt
the scan at any time.
You may listen to the (muted) signal from the other station during Tone Scanning when Set Mode Item 88:
TS MUT is set to “OFF.” See page ?? for details. You can also change the Tone Search scanning speed,
using Set Mode Item 89: TS SPD. See page ??.
Tone Scanning works either in the VFO or Memory modes.
EPCS (Enhanced Paging & Code Squelch)
The VX-3R includes an Enhanced CTCSS tone encoder/decoder and a dedicated microprocessor
providing paging and selective calling features. This allows you to place a call to a specific station (Paging),
and to receive calls of your choice directed only to you (Code Squelch).
The paging and code squelch systems use two pairs of (alternately switched) CTCSS tones which are
stored in the pager memories. Basically, your receiver remains silent until it receives the CTCSS tone pair
that matches those stored in the Receiving Pager Memory. The squelch then opens so the caller is heard,
and the paging ringer immediately sounds, if activated. When you close the PTT switch to transmit, the
CTCSS tone pair which is stored in the Transmitting Pager Memory will be transmitted automatically.
On the paged radio, the squelch will close automatically after the incoming page ends. Meanwhile, on the
paging radio, the Enhanced Paging and Code Squelch system will be disabled after the PTT switch is
released after the paging transmission. You may re-activate the Enhanced Paging and Code Squelch
system again.
Storing the CTCSS Tone Pairs for EPCS Operation
1. Press and hold in the [TXPO] key for one second to enter the Set mode.
2. Rotate the DIAL knob to select Set Mode Item 61: PAG.CDR for the Receiving CTCSS Tone Pair or Set
Mode Item 62: PAG.CDT for the Transmitting CTCSS Tone Pair.
Note: Do not forget to pull the DIAL knob to rotate the DIAL knob.
3. Press the [TXPO] key momentarily to enable adjustment of this Set Mode Item.
4. Rotate the DIAL knob to set the CTCSS Tone number which corresponds to the first tone of the CTCSS
Tone Pair.
5. Press the [V/M] key, then rotate the DIAL knob to set the CTCSS Tone number which corresponds to
the second tone of the CTCSS Tone Pair.
Vertex Standard Co., Ltd.
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