Oricom DTX4000 User manual

Keep this user guide for future reference. Always retain your proof of purchase in case of
warranty service and register your product on line at:
AUSTRALIA: www.oricom.com.au NEW ZEALAND: www.oricom.co.nz
Operating Instructions
DTX4000 80 Channel UHF Citizen Band Radio

This unit complies with all relevant Australian
and New Zealand approval requirements
AS/NZS 4365:2011
The ACMA increased the number of available UHF CB channels.
To provide additional channel capacity within the UHF CB Band the ACMA has increased the number of available
channels by changing from wideband to narrowband channels and adding the additional channels between the
existing 40 channels. Some of the new channels are locked and cannot be used, see channel chart later in this user
guide for more information.
When did this take place?
Early in 2011 new AS/NZS Standards came into effect allowing operators to use additional narrowband channels and
also use narrowband transmissions on some current wideband channels. This increased the number of channels up
to 80, 75 of which are useable voice channels.
What issues may users experience during the transition phase?
When a new narrowband radio receives a transmission from an older wideband radio the speech may sound loud
and distorted – simply adjust your radio volume for the best listening performance. When an older wideband radio
receives a signal from a new narrowband radio the speech may sound quieter - simply adjust your radio volume for
best listening performance. When operating a narrowband radio or Channel 41 - 80 interference is possible from
wideband radios transmitting on high power or on adjacent frequency.
The issues described above are not a fault of the radio but a consequence of mixed use of wideband and narrowband
radios.
It is expected that as older wideband radios are removed from service that this issue will be resolved. Most radios in
use will be narrowband eliminating this issue.
This information is current at time of printing. For further up to date information please visit
www.acma.gov.au

3
Table of contents
Introduction ..................................................................................4
Important information ...................................................................5
Installation of your Oricom Radio...................................................6
Controls and Indicators .................................................................8
Operations..................................................................................12
UHF CB channels and frequencies ..............................................27
Customer Support.......................................................................31
Express Warranty (Australia) .......................................................32
Need Help?
If you need assistance setting up or using your Oricom product now or in
the future, call Oricom Support.
Australia 1300 889 785 or [phone]
www.oricom.com.au
Mon-Fri 8am – 6pm AEST
New Zealand 0800 67 42 66
www.oricom.co.nz
Mon-Fri 10am – 8pm NZST

4
Introduction
Introduction
Thank you for choosing the Oricom DTX4000 5 watt UHF CB Radio.
Key Features
Dual receive
IP54 dust and splash resistant
12/24 volt operation
3 memory groups of 16 channels per group
Removable and reversible front panel
Multi-colour backlit display
Back light brightness (5 pre-set levels plus auto)
Fast scanning 80 channels within 3 seconds
Rotary volume/channel and squelch control
Duplex
38 CTCSS & 104 DCS codes
Heavy duty diecast metal chassis
Slide-in mounting bracket
Auto power off (off/1h/2h/4h)
3.5mm external jack (for optional external speaker or PA adaptor)
Optional Accessories
Remote head mounting kit
External speaker
PA adaptor jack
PC programming cable and software to allow programming of memory
location
Rear Microphone cable

5
Important information
Please read before installing or operating your
Oricom Radio
The operation of your UHF radio in Australia and New Zealand is subject
to conditions in the following licenses:
In Australia the ACMA Radio communications (Citizen Band Radio
Stations) and in New Zealand by MED the General User Radio License
for Citizen Band Radio.
Safety Information and Warnings
WARNING
Potentially Explosive Atmospheres
Turn your radio OFF when in any area with a potentially
explosive atmosphere. Sparks in such areas could cause an
explosion or re resulting in injury or even death.
NOTE: Areas with potentially explosive atmospheres are often,
but not always clearly marked. They include fueling areas such
as below deck on boats; fuel or chemical transfer or storage
facilities; areas where the air contains chemicals or particles,
such as grain, dust, or metal powders; and any other area where
you would normally be advised to turn off your vehicle engine.
Blasting Caps and Areas
To avoid possible interference with blasting operations, turn
your radio OFF near electrical blasting caps or in a “blasting
area” or in areas posted: “Turn off two way radios.” Obey all
signs and instructions.
Electromagnetic Interference/Compatibility
Nearly every electronic device is susceptible to electromagnetic
interference (EMI). To avoid the possibility of electromagnetic
interference and/or compatibility conicts, turn off your radio
in any location where posted notices instruct you to do so such
as health care facilities.

6
Installation of your Oricom Radio
CAUTION
When installing your radio in your vehicle, check that
during installation you do not damage any wiring or vehicle
components that may be hidden around the mounting position.
Ensure the installation does not interfere with the operation of
the vehicle and meets all regulatory and safety retirements for
accessories tted to your vehicle.
For optimum performance your radio needs to be installed
correctly. If you are unsure about how to install your radio, we
suggest you have your radio professionally installed by a UHF
specialist or Auto electrician. When installing the radio, avoid
mounting it close to heaters or air conditioners. Never press
the PTT or CALL button before connecting the antenna to the
radio.
Wiring Methods
There are two possible wiring congurations for connecting to the
Vehicles power supply.
A. Radio stays ON when the ignition is switched OFF
Connect the radio’s negative (black) lead to the vehicle chassis, or
directly to the batteries negative terminal.
Connect the radio’s positive (red) lead via the 2 Amp fuse to the
battery’s positive terminal. Alternatively, the positive lead could be
connected at the fuse box at a point that has DC Power continuously
available (preferably the battery side of the ignition switch) via the 2
Amp fuse.
B. Radio turns OFF with the ignition switch
Connect the radio’s negative (black) lead to the vehicle’s chassis, or
directly to the batteries negative terminal.

7
Installation of your Oricom Radio
The radio’s positive (red) lead should connect to an accessory point in
the vehicle’s fuse box via the 2 Amp fuse.
Antenna information
The antenna (not supplied) is of critical importance, to maximize your
output power and receiver senstivity.
A poorly installed, inferior quality antenna or one not designed for the
correct frequency band will give poor performance. You should only
purchase an antenna designed for the 477MHz frequency band.
Antenna installation
1. Connect the antenna to the rear antenna socket using a PL259 coaxial
connector (not supplied).
2. To obtain maximum performance from the radio, select a high quality
antenna and mount it in a good location. Never press the PTT or
CALL button before connecting the antenna to the radio.
Optional External Speaker
Depending on the installation it may be necessary to use an external
speaker (not supplied) to give improved volume and clarity. This can be
plugged into the EXT –SPK socket on the rear of the unit.

8
Controls and Indicators
Controls and Indicators
Front View
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SQ
CH
1
2
3 7
4
5 6
1. Power on/off and Volume/channel/squelch selector and SVL
(sub receiver volume)
2. Scan (open scan/memory group scan)/scan skip memory
3. Memory recall/memory write
4. Main & Sub channel swapping/SRX on/off
5. Menu/Group tone scan
6. Microphone connector
7. LCD display

9
Controls and Indicators
Rear View
1
2
3 4
1. 3.5mm external jack for optional 8 ohm speaker and PA speaker
2. Power supply connection
3. Rear microphone jack for Optional extension Microphone cable
4. Antenna Connection
Microphone
1. Push to talk
2. Volume/Channel/SQ/SVL down
3. SWP/Mode selector
4. Volume/Channel/SQ/SVL up
2 43
1

10
Controls and Indicators
LCD Icons & Indicators
10
1
2
45 6
7
8
9
3
1. Sub Receiver Busy 6. Signal strength & TX power & SWR meter
2. Sub Receiver On 7. Group display (A, B, C group)
3. Duplex On 8. Group address channel
4. Main Receiver Busy 9. Status display
5. CTCSS or DCS On 10.Channel display
TO MOUNT: SLIDE
INTO UNIVERSAL
MOUNTING BRACKET
TO REMOVE:
SLIDE OUT HOLDING
BRACKETS AWAY FROM
TRANSCEIVER
Installation of the DTX4000 and tting optional accessories
Mounting the Transceiver
The universal mounting bracket supplied with your transceiver allows
overhead/dash mounting.
Mount the transceiver via the bracket, securely with the supplied screws,
in the desired location, ensuring the surface is sturdy and can support the
weight of the radio.

11
Controls and Indicators
(OPTIONAL ACCESSORY)
2m EXTENSION CABLE
-----------------------------------------
the REMOTE HEAD
Connect the REMOTE
HEAD with 2m
EXTENSION CABLE
This mounting bracket and
screws are part of the
optional accessory kit
red:
+
black:
attery
TO CHASSIS
FUSE
(OPTIONALACCESSORY)
EXTRA MIC LEAD
(OPTIONALACCESSORY)
EXTERNAL SPEAKER
(OPTIONAL ACCESSORY)
- - - - - - - - - - - - - - - - - - - - - - --
- - - - - - - - - - - - - - - -
_________or ________
O
ANTENNA CONNECTOR
4
5
MICROPHONE HANGER - Fit the supplied
micrphone hanger in the desired location.
6
6
4
RED for extension
speaker
Yellow for PA
speaker
DC POWER CABLE - Connects to 12V or
24V Battery. Pay attention to polarities.
EXTERNAL APEAKER JACK
PA ADAPTOR JACK (OPTIONAL ACCESSORY)
EXTERNAL SPEAKER (OPTIONAL ACCESSORY)
Installation Diagram
Fitting the Optional Remote Head

12
Operations
Operations
Turning on the Power
Press and hold the Channel selector.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SQ
CH
Setting the Volume
Turn the channel selector clockwise to adjust the sound level for
comfortable reception.
On the microphone push the up or down buttons to increase or
decrease the volume. If held down the volume will increase or decrease
quickly.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SQ
CH
Selecting a channel
Press channel selector once. The "CH" appear on the LCD.
Select the channel by rotating the channel selector up or channel down.
On the microphone push the mode button and select the channel by
pushing the up or down buttons.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SQ
CH

13
Operations
Setting the Squelch Level
1. Press channel selector 2 times. The current squelch level is
displayed.
2. Select the squelch level by rotating the channel selector.
1 - Max sensitivity (Min. squelch)
15 - Min. sensitivity (Max/Tight squelch)
Off - Open squelch
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
S Q
CH
Setting SRX (Sub Receiver) Volume
1. Press Channel selector 3 times "SVL" is displayed.
2. Rotate the Channel selector to adjust the SRX volume.
Note :
*If a button is not pressed within 2 seconds the radio will
automatically exit the sub display of "VOL" "CH" "SQL" and "SVL".
PTT (Push-To-Talk) button
Pressing the PTT button activates the transmitter.
The RF (radio frequency) level will appear on the LCD as you are
transmitting.
To receive, release the PTT button and then TX will disappear on the
display.
When transmitting, hold the Mic two inches from your mouth and speak
clearly in a normal voice across the front of the Mic area.

14
Operations
Scanning
The Scan feature allows you to search for active channels automatically.
There are 3 scanning modes;
Open Scan, Group Memory Scan and Group tone Scan (a special case
of Group Memory Scan).
Open scan
Press SCAN/RM and scanning starts. The OS-SC sub menu display
appears on the LCD.
When a signal is found, scanning will stop at that channel to allow the
signal to be heard, then resume scanning when the channel is clear
again.
The scan resume time can be set as an optional
pause of P8 (default).
ch 1-2-3-4-5-6-7 ….. 77-78-79-80
Open Scan, the scan direction cannot be changed by
rotation of the channel control or microphone buttons.
To stop the scan press the SCAN/RM button or press the PTT
Remove Memory in Scanning
While the radio stops scanning on a busy
channel, press hold SC/RM button for 2
seconds.
Channel will be remove from current
scanning. The removed channel will be reinstated after the scan is
stopped and restarted.
Scan 1-2-3-4-5-6-7 ….. 77-78-79-80
RM Scan 1-3-4-5-6-7 ….. 77-78-79-80
Note: Up to 10 channels can be removed for the current scan.
SCAN
RM
SCAN
RM
2 sec

15
Operations
For this example we are removing CH02 during the scan.
Because it is only noise.
1. Press SC/RM button for 2 seconds.
2. Scanning will resume.
3. Channel 02 is removed during scan.
Group Memory Scan
Memory scan must be stored to the memory channels in groups A to C.
Refer to memory recall function.
1. Press MR/MW button to change the setting between A, B, C and
blinking A, B, C.
When blinking, then all groups will be scanned starting in selected
group.
2. Press Scan button to start group scan.
The MS-SC sub menu display appears on the LCD.
3. To stop Group memory Scan, press SCAN/RM button or PTT press.
Group tone Scan
Group tone scan is the default scan mode and is enabled to allow
continual communication across congested channels.
Group Tone Scans channel stored into Group memory scan and only
opens the squelch for signals with the correct sub code (38 CTCSS or
104 DCS tone).
To achieve this, all radios in your group must have the same channels in
A, B, C memory (group memory channels) and use the same Subcode
(38 CTCSS and 104 DCS tone).
SCAN
RM

16
Operations
1. Press hold MENU/GTS button to Group Tone Scan.
All group tone scan stored into Group memory channel and CTCSS
01 (67Hz) is set for Group Tone Scan.
The Group tone code can be change by menu mode.
2. To stop Group memory Scan, Press MENU/GTS button or PTT press.
Memory Recall
This feature allows the user to active the stored
channels in the MR button.
To access channel in the MR button, simply press
the "MR" button, and the "A" will appear at the right
side on the LCD. Press memory button you want to
access From A to C Group.
Continuous Press MR button will be change to A->B->C->A blinking ->B
blinking -> C brining ->A.
If SC/RM button press and start of all memory Group scanning at
during the blinking A to C.
The DTX4000 has no information stored in the memory channels.
Memory Write
Select the channel you want to store.
For this example we write CH09 to B group and group channel 8.
1. Press hold MR/MW button. The memory write.
The appear A and group channel 1 blinking.
2. Press MR/MW button change for the B group.
3. Press channel selector change of CH mode.
4. Channel selector rotation until 8 is shown in group channel display.
5. Press hold MR/MW button to save & exit from memory write.
MR
MW
press hold

17
Operations
SWP (Swapping Dual RX channel)
The DTX4000 can receive two channels simultaneously.
The main receiver default channel is 12 and Sub receiver default channel
is 40.
The Sub channel can be turned on and off by pressing and holding the
SRX button the "S" indicator on the display will be on if the SRX is on.
It is not possible to transmit on the SRX you must swap the SRX and
Main RX to transmit on that channel.
To adjust the volume of the SRX channel push the channel change dial
3 times the display will show SVL and the level.
SRX On/Off
Press hold SWP/SRX button to turn SRX off.
To return to Dual RX mode press and hold the SRX button for
2 seconds.

18
Operations
Menu list
*Press menu button to access menu.
*Use the channel dial to change the value of each setting.
*If a button is not pressed within 8 seconds the radio will
automatically exit the menu mode.
* You can exit the menu by briey pressing PTT button.
*Please see below menu modes.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SQ
CH
Function Step Display Default
Duplex On/Off
Off
On
On
CTCSS and DCS
Off
Offto
104
Group Tone
Scan
CT1(67Hz)
CT1 (67Hz)
DCS104
Backlight LED
colour
0
87(Sky Blue)to
95

19
Operations
Bright of
Dimmer
auto
4to
5
Reset
User
User reset
Factory
Squelch tail
Off
Off
On
Busy channel
lock
Off
Off
On
Key Beep
Off
Off
On
Logo Display
On
On
Off
TPI
On
On
Off

20
Operations
Treble
0
2to
7
Scan resume
time
p5
P5to
5,10,15
Auto power Off
Off
Offto
1H,2H,4H
Software
version VER-- 1
PA (Public Address)
To use and external PA speaker connect the optional PA cable to the
External speaker jack on the rear of the radio, connect the PA speaker
to the yellow coloured socket and the external CB speaker to the red
coloured socket the output will be directed to the PA speaker when PA
function is selected.
How to operate the Public Address
1. Press and hold the PTT while turning the power on
2. Press the PTT and speak into the microphone the audio will be
output through the PA speaker
3. Adjust the volume using the volume control
4. To Exit PA mode turn radio off and back on