O
PERATING
M
ANUAL
Congratulations!
You now have at your fingertips a valuable
communications tool – a Yaesu two-way radio! Rugged,
reliable and easy to use, your Yaesu radio will keep you
in touch for years to come, with negligible maintenance.
Please take a few minutes to read this manual carefully.
The information presented here will allow you to derive
maximum performance from your radio.
After reading it, keep the manual handy for quick
reference, in case questions arise later on.
We're glad you joined the Yaesu team. Call on us any
time, because our business is communications. Let us
help you get your message across.
NOTICE
There are no user-serviceable points inside this
transceiver. All service jobs must be referred to your
Authorized Service Center or Network Administrator.
Features
The VX-4000 Series are rugged basic-featured FM
transceivers designed for flexible mobile and base station
business communications in the 50-watts VHF and 40-
watts UHF
A highly integrated surface mount circuit design and a
die-cast aluminum chassis assure reliability. Selectable
power output of LOW(5 – 25 watts) or High (VHF:50watts,
UHF:40watts) without the need of forced air cooling is
possible due to the large heatsink surface area of the
compartmentalized one-piece diecast chassis.
The 250-channels memories can each be programmed
with a 8-character channel name.
A 39-tone programmable CTCSS encoder/decoder is
built in as standard.
A 104 standerd digital codes programmable DCS
encoder/decoder is built in as standard.
Important channel frequency data is stored in EEPROM
and flash memory on the CPU, and is easily
programmable by dealers using a personal computer and
the Yaesu
CT-71
Programming Cable and
CE-35
Software.
Front panel
1 2 3 4 5 6
7 8 9 10 11 12 13 14
C
ONTROL
& C
ONNECTORS
1
TX
Indicator
This lamp glows red when the radio is transmitting.
2
POWER
Button
Turn the radio on or off.
(Press and hold in this button for 1.5 second.)
3
BUSY
Indicator
This lamp glows green when the channel is busy.
4
Liquid Crystal Display
The display include an 8-character alpha-numeric
section showing channel and group names, status and
identity information, and error messages. Additional
indicators on the display show priority channel
assignments and scan include / exclude selection.
5
UP
Pressing this button changes the current group (and
displayed group number or name). Holding this button for
more than 1/2 second causes the function to repeat.
6
DOWN
Pressing this button changes the current group (and
displayed group number or name). Holding this button for
more than 1/2 second causes the function to repeat.
7
Programmable Function Button
This button can be set up for special applications, such
as high/low power selection, monitor, dimmer, talk-
around, and call alert function, as determined by your
network requirements and programmed by your Yaesu
dealer.
The default function is set as
Dimmer
Button.
8
HOME
Indicator
This lamp glows orange when incorrect position at the
setting of CE-35.
9
VOLUME
Knob
