VX-3R/E O
PERATING
M
ANUAL
34
EPCS
(
E
NHANCED
P
AGING
& C
ODE
S
QUELCH
)
The
VX-3R/E
includes an Enhanced CTCSS tone encoder/decoder and a dedicated micro-
processor 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 that is stored
in the Transmitting Pager Memory will be transmitted automatically.
On the paged radio, the Code 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.
S
TORING
THE
CTCSS T
ONE
P
AIRS
FOR
EPCS O
PERATION
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.
6.
Press the
PTT
switch to save the new setting and exit to normal
operation.
The VX-3R/E does not recognize the order of the 1st
tone and the 2nd tone. In other words, for example, the
VX-3R/E considers both CTCSS pairs “10, 35” and “35,
10” to be identical.
CTCSS/DCS/EPCS O
PERATION