Oricom DTX4200 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
DTX4200 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 to 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
Express Warranty (Australia) .......................................................31
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 DTX4200 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
96 Multi-colour backlit display
Backlight 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
External speaker
PA adaptor jack
PC programming cable and software to allow programming of memory
location

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 fuelling 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 requirements 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 battery’s 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 battery’s negative terminal.
The radio’s positive (red) lead should connect to an accessory point in
the vehicle’s fuse box via the 2 Amp fuse.

7
Installation of your Oricom Radio
Antenna information
The antenna (not supplied) is of critical importance, to maximize your
output power and receiver sensitivity.
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.
3. For best performance always mount your antenna as high as possible
and away from all other antennas or poles.
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
6
1
2
4
5
3
7
1. Power on/off and Volume/channel/squelch selector and SVL
(sub receiver volume)
2. Scan (open scan/memory group scan)/remove memory
3. Memory recall/memory write
4. Main & Sub channel swapping/SRX on/off
5. Menu/Group tone scan
6. Microphone
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. Computer programming connector
4. Antenna Connection

10
Controls and Indicators
LCD Icons & Indicators
245
6
7
8
3
1
10 9
1. Sub receiver busy 6. Group display (A, B, C groups)
2. Sub receiver on 7. Group address channel
3. Main receiver busy 8. Status display
4. Duplex on 9. CTCSS or DCS on
5. Signal strength & TX power 10. Channel display
TO MOUNT: SLIDE
INTO UNIVERSAL
MOUNTING BRACKET
TO REMOVE:
SLIDE OUT HOLDING
BRACKETS AWAY FROM
UHF RADIO
Installation of the DTX4200 and tting optional accessories
Mounting the UHF radio
The universal mounting bracket supplied with your UHF radio allows
overhead/dash mounting.
Mount the UHF radio 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
ANTENNA CONNECTOR
4
5
MICROPHONE HANGER - Fit the supplied
micrphone hanger in the desired location.
6
ry. Pay attention to polarities.
EXTERNAL SPEAKER JACK
CCESSORY
red:
+
black:
attery
TO CHASSIS
FUSE
(OPTIONALACCESSORY)
EXTRA MIC LEAD
(OPTIONALACCESSORY)
EXTERNAL SPEAKER
(OPTIONAL ACCESSORY)
- - - - - - - - - - - - - - - - - - - - - - --
- - - - - - - - - - - - - - - -
_________or ________
O
6
4
RED for extension
speaker
Yellow for PA
speaker
5
Installation Diagram

12
Operations
Operations
Turning on the Power
Press and hold the channel selector.
Setting the Volume
Rotate the channel selector clockwise to adjust
the sound level for comfortable reception.
Selecting a channel
Press channel selector once. "CH" will appear
on the LCD.
Select the channel by rotating the channel
selector, Clockwise Channel UP, anti-clockwise
Channel DOWN.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS

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
Setting SRX (Sub Receiver) Volume
1. Press channel selector 3 times, then "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 display as you are
transmitting.
To receive, release the PTT button, TX will disappear on the LCD
display.
When transmitting, hold the Mic two inches (5cm) from your mouth
and speak clearly in a normal voice across the front of the Mic area.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS

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 to start scan. The OS-SC sub menu display will appear
on the LCD display.
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 to 5, 10 or 15
seconds of P5 (default).
ch 1-2-3-4-5-6-7 ….. 77-78-79-80
Note: During open scan rotating the channel
selector will not change the scan direction.
To stop the scan, press the SCAN/RM button or press the PTT.
Remove Memory in Scanning
To remove a channel from the scan,
press and hold SC/RM button for 2
seconds.
The channel will be removed from
the current scan. When the scan stops, the removed channel will be
reinstated.
MR
SCAN
RM
SWP
SRX
MW MENU
GTS
2 sec
MR
SCAN
RM
SWP
SRX
MW MENU
GTS

15
Operations
For example we are removing CH02 from the scan. You may want to
remove this channel due to constant noise.
1. Press SC/RM button for 2 seconds.
2. Scanning will resume.
3. Channel 02 is removed from this scan.
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.
Group Memory Scan
Memory scan must be stored to the memory channels in groups A to C.
Refer to memory recall function on page 16.
1. Press MR/MW button to change between A, B, C and ashing A, B, C.
When A, B, C are ashing, then all groups will be scanned starting
in selected group. When A, B and C are not ashing, then only the
selected group will scan.
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.
Group Tone Scan
When Group Tone Scan is enabled, it will allow continual communication
across congested channels.
Group tone scan channels stored into Group memory scan and only
opens the squelch for signals with the correct subcode (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).

16
Operations
By scanning only group channels, radios in the network will be able
to detect and receive group transmissions which will be continual
communication without interruption. When transmitting in this mode,
the radio switches to an unused group channel if it detects another
signal with no code/the wrong code, on the channel last used by the
group.
1. Press and hold MENU/GTS button to activate 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 changed in the
settings menu.
2. To stop Group memory Scan, Press MENU/
GTS button or PTT.
Memory Recall
This feature allows the user to recall the stored channels using the MR
button.
To access the stored channels, simply press the "MR" button, and the
"A" will appear at the right side on the LCD. Press the MR button again
to cycle through A - B - C groups and ashing A - B - C.
When A, B and C are ashing, press SC/RM button to start all memory
group scanning.
For scanning A, B or C only, select non ashing preferred group (A, B or
C) press SC/RM.
The DTX4200 has no information stored in the memory channels.
MR
SCAN
RM
SWP
SRX
MW MENU
GTS

17
Operations
Memory Write
Select the channel you want to store.
For this example we will write CH09 to B group and group channel 8.
1. Press and hold the MR/MW button to store a channel.
"A" will appear and the group channel will ash.
2. Press MR/MW button to select B group.
3. Press channel selector to engage CH mode.
4. Rotate channel selector until 8 is shown in group channel display.
5. Press and hold MR/MW button to save & exit from memory write.
SWP (Swapping Dual RX channel)
The DTX4200 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
SWP/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 channel 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
selector 3 times, the display will show SVL and the level. Adjust desired
volume level by rotating channel change selector, the setting will
automatically save, press PTT to exit.

18
Operations
SRX On/Off
Press and hold SWP/SRX button to turn SWP/SRX off.
To return to Dual RX mode, press and hold the SRX button for
2 seconds.
Menu list
*Press MENU/GTS button to access menu.
*Use the channel selector 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 at any time by briey
pressing PTT button.
*Please see below menu modes.
SCAN
RM
MR
MW
SWP
SRX
MENU
GTS

19
Operations
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
Backlight
Dimmer
auto
4to
5
Factory Reset
User
User reset
Factory
Squelch tail
Off
Off
On

20
Operations
Busy channel
lock
Off
Off
On
Key Beep
Off
Off
On
Logo Display
On
On
Off
TPI
On
On
Off
Treble
0
2to
7
Scan resume
time
P5
P5to
5,10,15
Auto power Off
Off
Offto
1H,2H,4H
Software
version VER-- 1