DTX4000 IP54 Dual Receive 5W UHF CB Radio | 12V/24V

📻 ORICOM DTX4000 IP54 DUAL RECEIVE 5 WATT UHF CB RADIO – 12V / 24V

Premium Dual Receive UHF CB with Group Tone Scan, 12/24V Operation & Heavy-Duty Die-Cast Chassis

📡 The Oricom DTX4000 is a premium 5 Watt UHF CB radio designed for drivers who want to monitor more of what is happening around them without installing a second radio.

Its standout Dual Receive functionality allows you to receive and listen to two different UHF channels simultaneously. You could monitor Channel 40 for highway and road-condition information while staying connected to your convoy on another channel – giving you the functionality of two receiving radios in one compact unit.

The DTX4000 also introduces advanced features such as Group Tone Scan, three programmable memory groups, fast scanning, a transmit-power indicator and 12/24V vehicle compatibility.

Built around a heavy-duty die-cast metal chassis with IP54 dust and splash resistance, a removable front panel and flexible speaker orientation, the DTX4000 is well suited to 4WDs, touring vehicles, trucks, commercial vehicles and demanding mobile installations.

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⚡ KEY FEATURES

👂 Dual Receive – Monitor 2 Channels at Once
Receive and listen to two different UHF channels simultaneously without installing two separate radios.

📻 Full 5 Watt UHF CB Output
Delivers up to 5 Watts maximum RF transmit power for full-power Australian UHF CB communications.

⚡ 12V / 24V Vehicle Operation
Wide 10–30V DC operating range makes the DTX4000 suitable for compatible nominal 12V and 24V vehicle electrical systems.

🔄 Group Tone Scan
Advanced GTS functionality can automatically move compatible users to a free channel when interference is detected.

📊 Transmit Power Indicator
Provides a visual indication of power being delivered toward the antenna whenever the microphone is keyed.

💦 IP54 Dust & Splash Resistance
Provides additional environmental protection for demanding touring, transport and mobile applications.

📁 3 Memory Groups
Provides three memory groups with up to 16 channels per group, with PC programming capability.

⚡ Fast Channel Scanning
Capable of scanning all 80 UHF CB channels in approximately three seconds.

🌈 Multi-Colour Backlit Display
Features a large multi-colour display with five preset brightness levels plus automatic brightness adjustment.

🎛️ Rotary Volume, Channel & Squelch Controls
Provides quick and intuitive physical adjustment of everyday radio functions.

📶 Duplex Repeater Capability
Supports compatible UHF CB repeater operation using the standard +750kHz transmit offset.

🔐 38 CTCSS & 104 DCS Codes
Provides extensive signalling options for compatible group communications.

🛡️ Heavy-Duty Die-Cast Metal Chassis
Robust construction designed for demanding mobile installations.

🔄 Removable Front Panel
Provides additional installation flexibility for different dashboard and console layouts.

🔊 Flexible Speaker Orientation
The radio can be mounted with its speaker facing upwards or downwards to suit the installation position.

⏱️ Auto Power-Off
Selectable Off, 1-hour, 2-hour and 4-hour automatic shutdown settings.

🔊 3.5mm External Accessory Jack
Supports an optional compatible external speaker or PA adaptor.

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👂 DUAL RECEIVE – LIKE HAVING TWO RECEIVERS IN ONE

Dual Receive is the feature that makes the DTX4000 particularly useful for touring and transport applications.

Instead of listening to only one selected channel, the radio can receive two channels simultaneously.

For example:

• 🚛 Monitor Channel 40 for highway traffic and road information
• 🚙 Stay connected to your convoy on a separate channel

If activity occurs on either monitored channel, you can hear the transmission without constantly switching between them.

This makes it easier to stay informed while maintaining communication with your group.

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🔄 GROUP TONE SCAN – KEEP THE CONVERSATION MOVING

Group Tone Scan is designed to help compatible groups maintain communication when interference occurs.

When users have the same CTCSS or DCS code configured, Group Tone Scan can automatically move the group to a free channel if interruptions are detected.

This can be especially useful for:

• 🚙 4WD convoys
• 🏕️ Touring groups
• 🚚 Vehicle fleets
• 🏗️ Worksite communications
• 🚜 Agricultural operations

⚠️ Group Tone Scan relies on compatible radio configuration between users. CTCSS and DCS do not create private or encrypted communications.

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📊 TRANSMIT POWER INDICATOR

The DTX4000 includes a transmit-power indicator that provides a visual indication of how much power is being delivered toward the antenna when transmitting.

This gives the operator useful feedback each time the microphone is keyed.

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📻 FULL 5 WATT UHF CB PERFORMANCE

Maximum RF Output Power: 5 Watts

The DTX4000 provides full-power Australian UHF CB transmission capability for touring, commercial and general vehicle communications.

Combined with an appropriately selected and installed 50-ohm antenna system, it provides a capable communications platform for:

• 🚙 4WD touring
• 🚛 Highway transport
• 🛻 Work vehicles
• 🚜 Agricultural machinery
• 🏗️ Plant equipment
• 🚐 Caravan tow vehicles

⚠️ Actual communication range depends heavily on antenna choice, antenna mounting position, terrain, surrounding obstacles and whether direct or repeater operation is being used.

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⚡ DIRECT 12V & 24V VEHICLE COMPATIBILITY

Operating Voltage Range: 10–30V DC

Nominal Operating Voltage: 13.8V DC to 28V DC

This wide voltage range allows the DTX4000 to be used in compatible nominal:

• 🔋 12V vehicle systems
• 🔋 24V vehicle systems

This is particularly useful in trucks, heavy vehicles and commercial equipment where 24V electrical systems are common.

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📁 3 PROGRAMMABLE MEMORY GROUPS

The DTX4000 provides three memory groups with up to 16 channels available in each group.

The memory groups are PC programmable and can be useful for organising channels according to different applications.

For example:

• 🚙 Convoy channels
• 🚛 Highway channels
• 🏕️ Touring or campsite channels

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⚡ FAST SCANNING – 80 CHANNELS IN APPROXIMATELY 3 SECONDS

The DTX4000 is designed for fast monitoring of UHF CB activity.

Scanning Speed: Approximately 50ms Per Channel

This equates to scanning the full 80-channel UHF CB allocation in approximately three seconds.

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🌈 LARGE MULTI-COLOUR DISPLAY

The DTX4000 features a large multi-colour backlit display designed for easy visibility within the vehicle.

Backlight control includes:

• 🔆 5 preset brightness levels
• 🌗 Automatic brightness mode

This allows the display to be adjusted for bright daytime conditions or reduced for night driving.

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🎛️ ROTARY CONTROLS

The DTX4000 uses practical rotary controls for:

• 🔊 Volume
• 📡 Channel selection
• 🔇 Squelch

Rotary controls provide fast physical adjustment and can be easier to use when driving on rough roads or operating commercial equipment.

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🔄 REMOVABLE FRONT PANEL

The DTX4000 features a removable front panel, providing additional flexibility when planning the installation.

This can be useful where dashboard space, console geometry or access to the transceiver body makes a conventional installation difficult.

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🔊 SPEAKER CAN FACE UP OR DOWN

The DTX4000 can be mounted with the radio speaker facing either upward or downward.

This gives additional freedom when choosing a mounting position while helping keep the built-in speaker directed toward a practical listening area.

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💦 IP54 DUST & SPLASH RESISTANCE

The DTX4000 carries an IP54 ingress-protection rating.

This provides additional resistance against:

• 🌫️ Dust ingress
• 💦 Splashing water

That makes it well suited to demanding vehicle environments where dust and occasional moisture are common.

⚠️ IP54 does not mean waterproof or submersible. Install the radio in an appropriately protected position and avoid direct high-pressure water exposure.

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🛡️ HEAVY-DUTY DIE-CAST METAL CHASSIS

The DTX4000 uses a heavy-duty die-cast metal transceiver chassis for a robust installation in demanding environments.

This makes it particularly suitable for:

• 🚙 Off-road vehicles
• 🚚 Trucks
• 🛻 Commercial utes
• 🚜 Agricultural machinery
• 🏗️ Earthmoving and plant equipment

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📶 DUPLEX REPEATER OPERATION

The DTX4000 supports simplex communication and repeater operation using a +750kHz transmit offset.

Where a compatible UHF CB repeater is available, duplex operation can extend practical communication coverage considerably beyond direct vehicle-to-vehicle range.

⚠️ Duplex functionality does not automatically increase range. A suitable repeater must be available and within coverage.

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🔐 38 CTCSS & 104 DCS CODES

The DTX4000 provides:

38 CTCSS Codes

104 DCS Codes

These signalling functions can help compatible users reduce unwanted received audio when sharing a busy UHF CB channel.

⚠️ CTCSS and DCS do not make a channel private or encrypted. Other users can still receive and transmit on the underlying UHF CB channel.

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⏱️ SELECTABLE AUTO POWER-OFF

The DTX4000 includes selectable automatic shutdown settings:

• Off
• 1 Hour
• 2 Hours
• 4 Hours

This can be useful where you want the radio to shut down automatically after a nominated period.

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🔊 EXTERNAL SPEAKER OR PA CONNECTION

A 3.5mm accessory jack is provided for use with a compatible optional:

• 🔊 External speaker
• 📢 PA adaptor

This can provide additional installation flexibility in noisy cabins, trucks and work vehicles.

⚠️ An external speaker and PA adaptor are optional accessories and are not stated as included.

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📡 50-OHM ANTENNA REQUIREMENT

Antenna Impedance: 50 Ohms

The antenna is a critical part of overall UHF CB performance.

The correct choice depends on:

• 🏜️ Open-country touring
• ⛰️ Hilly or mountainous terrain
• 🚛 Highway operation
• 🏙️ Urban driving
• 🚙 Vehicle mounting position

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🛡️ BUILT-IN ELECTRICAL PROTECTION

The DTX4000 incorporates several electrical protection measures:

• ⚡ Over-voltage protection via diode and voltage-regulator system
• 🛡️ Over-current protection via 2A fuse
• 🔄 Reverse-polarity protection via shunt diode

Correct vehicle wiring and installation practices are still required.

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📋 TECHNICAL SPECIFICATIONS

Brand: Oricom

Model: DTX4000

Product Type: Dual Receive UHF CB Radio

Dual Receive: Yes

Group Tone Scan: Yes

Transmit Power Indicator: Yes

RF Output Power: 5 Watts Maximum

Frequency Range TX/RX: 476.425–477.4125MHz

Number of UHF CB Channels: 80

Voice Channels: 75

Channel Spacing: 12.5kHz

Operating Modes: Simplex & Repeater

Repeater TX Offset: +750kHz

Scanning Speed: Approximately 50ms Per Channel

Full 80-Channel Scan: Approximately 3 Seconds

Memory Groups: 3

Channels Per Memory Group: 16

PC Programmable Memory Groups: Yes

CTCSS Codes: 38

DCS Codes: 104

Antenna Impedance: 50 Ohms

Nominal Operating Voltage: 13.8V DC to 28V DC

Operating Voltage Range: 10–30V DC

12V / 24V Operation: Yes

Transmit Current Consumption: Approximately 1.7A with 50-Ohm Antenna Termination

Over-Voltage Protection: Diode & Voltage Regulator System

Over-Current Protection: 2A Fuse

Reverse-Polarity Protection: Shunt Diode

Frequency Stability: ±5ppm

Modulation: F3E / FM

Maximum Deviation: 2.5kHz

Spurious Emissions: <-30dBm

TX Audio Pre-Emphasis: +6dB/Octave from 300Hz to 3kHz

Receiver Circuit Type: Dual Conversion Superheterodyne

Main RX Intermediate Frequencies: 1st IF 21.4MHz / 2nd IF 450kHz

Sub RX Intermediate Frequencies: 1st IF 38.85MHz / 2nd IF 455kHz

Maximum Usable Sensitivity: -123dBm at 12dB SINAD Unweighted

Audio Output Power: Greater Than 2 Watts at 8 Ohm Load

RX Audio De-Emphasis: +6dB/Octave from 300Hz to 3kHz – As Listed

Signal-to-Noise Ratio: Greater Than 40dB

Conducted Spurious Emission: Greater Than -57dBm – As Listed

Display: Multi-Colour Backlit Display

Backlight Brightness: 5 Preset Levels + Auto

Rotary Volume / Channel Control: Yes

Rotary Squelch Control: Yes

Removable Front Panel: Yes

Speaker Orientation: Upwards or Downwards

Chassis: Heavy-Duty Die-Cast Metal

Ingress Protection: IP54

Mounting Bracket: Slide-In Type

Auto Power-Off: Off / 1 Hour / 2 Hours / 4 Hours

External Accessory Jack: 3.5mm

External Speaker Compatibility: Yes – Optional

PA Adaptor Compatibility: Yes – Optional

Dimensions (H × W × D): 31 × 128 × 147mm

Transceiver Weight: Approximately 548g

Compliance: AS/NZS 4365:2011

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🔧 INSTALLATION CONSIDERATIONS

• Suitable for compatible nominal 12V and 24V electrical systems
• Ensure supply voltage remains within the stated 10–30V DC operating range
• Retain the specified 2A fuse protection
• Use a compatible 50-ohm UHF CB antenna
• Select an antenna suited to your typical terrain and driving conditions
• Choose a secure, protected mounting position for the transceiver
• Take advantage of the upward or downward speaker orientation where required
• Plan any removable-front-panel installation before final mounting
• Do not assume PC programming hardware is included
• Do not treat IP54 protection as waterproof or submersible
• Route power and antenna cables away from sharp edges, excessive heat and moving components

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❓ FREQUENTLY ASKED QUESTIONS

What is Dual Receive?

Dual Receive allows the DTX4000 to receive and monitor two UHF channels simultaneously instead of limiting you to a single selected channel.

Can I monitor Channel 40 while talking to my convoy on another channel?

Yes. That is one of the main advantages of the DTX4000. You can monitor a highway or road-information channel while also keeping track of your convoy channel.

Is Dual Receive the same as scanning?

No. Scanning searches through channels for activity. Dual Receive is designed to monitor two selected channels simultaneously, making it particularly useful when both channels are important to you.

Do I need two antennas for Dual Receive?

No separate second radio or antenna is described as being required for the Dual Receive function. The DTX4000 incorporates the two-channel receive capability within the radio.

What is Group Tone Scan?

Group Tone Scan allows compatible users sharing the same CTCSS or DCS code to automatically move to a free channel when interference is detected, helping maintain group communications.

Do all radios in the group need Group Tone Scan?

For the automated group-changing functionality to work as intended, the radios involved need compatible configuration and functionality.

Does Group Tone Scan make conversations private?

No. CTCSS and DCS signalling does not encrypt the underlying UHF CB transmission.

What does the transmit-power indicator tell me?

It gives a visual indication of transmit power being delivered toward the antenna whenever you key the microphone.

Is the DTX4000 a full 5 Watt UHF?

Yes. Maximum RF transmit output is specified at 5 Watts.

Can I install the DTX4000 directly into a 24V truck?

Yes, provided the supply remains within the specified 10–30V DC operating range. The DTX4000 is designed for compatible 12V and 24V vehicle systems.

Do I need a 24V-to-12V converter?

Not simply to operate the DTX4000 from a compatible 24V vehicle electrical system. Its operating range extends to 30V DC.

Does it have all 80 Australian UHF CB channels?

Yes. The radio supports 80 UHF CB channels, including 75 voice channels.

How fast does it scan?

The specified scanning speed is approximately 50ms per channel, allowing all 80 UHF CB channels to be scanned in around three seconds.

What are the three memory groups for?

They allow frequently used channels to be organised into three separate groups with up to 16 channels in each group.

Can the memory groups be programmed from a computer?

The memory groups are described as PC programmable. The information provided does not confirm that any programming cable or software is included with the radio.

Can I use UHF CB repeaters?

Yes. The DTX4000 supports duplex operation using the standard +750kHz repeater offset.

Will a repeater give me more range?

It can significantly extend communication coverage where an appropriate repeater is available and within range. Duplex alone does not increase direct radio-to-radio range.

How far will the DTX4000 communicate?

There is no reliable single distance figure. Antenna type, terrain, antenna position, surrounding obstacles and repeater availability all significantly affect UHF range.

What antenna should I use?

The DTX4000 requires a 50-ohm antenna system. Antenna gain should be selected according to your vehicle, mounting position and whether you mainly drive on open highways, mixed terrain or steep country.

Does an antenna come with the DTX4000?

An antenna is not identified as included in the information provided for this radio-only model.

Does the front panel come off?

Yes. The DTX4000 is specified with a removable front panel for greater mounting flexibility.

Can I mount the radio upside down?

The product information specifically states that the radio can be mounted with the speaker facing upwards or downwards. Final orientation should still provide secure mounting, practical access and suitable cable routing.

Is the DTX4000 waterproof?

No. The IP54 rating provides dust and splash resistance but does not make the radio waterproof or suitable for submersion.

Is IP54 useful in a 4WD?

Yes. It provides additional protection against dust and splashing water, which can be useful in demanding touring environments. The radio should still be mounted in a protected location.

Can I connect an external speaker?

Yes. A 3.5mm jack is provided for a compatible optional external speaker.

Can the 3.5mm jack be used for a PA system?

The product information states that the 3.5mm jack can also be used with an optional PA adaptor.

How much current does the radio draw while transmitting?

The specified transmit current consumption is approximately 1.7A with a 50-ohm antenna termination.

What size fuse does it use?

The specification lists a 2A fuse for over-current protection.

Does it have reverse-polarity protection?

Yes. Reverse-polarity protection is provided by a shunt diode according to the supplied technical information.

How large is the DTX4000?

The transceiver is specified at approximately 31mm high × 128mm wide × 147mm deep and weighs approximately 548g.

How does the DTX4000 compare with the DTX4300?

The DTX4300 is the better option where ultra-compact physical size is the main priority. The DTX4000 is larger but adds significant functionality including Dual Receive, Group Tone Scan, transmit-power indication, 12/24V operation, a removable front panel and two independent receive stages.

How does the DTX4000 compare with the DTX4200XP?

Both offer Dual Receive functionality. The DTX4000 uses controls and display on the main radio body and provides a removable front panel, while the DTX4200XP is designed around a professional controller speaker microphone with the main transceiver mounted separately. The better option depends on your preferred installation style.

What should I check before buying?

Confirm that you have a suitable mounting location for the 31 × 128 × 147mm transceiver, select an appropriate 50-ohm antenna, make sure your vehicle supply remains within the 10–30V operating range and decide whether you need optional accessories such as an external speaker, PA adaptor or PC-programming equipment.

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📻 MONITOR TWO CHANNELS, HEAR MORE & STAY BETTER CONNECTED

The Oricom DTX4000 is built for drivers who don't want to choose between monitoring the road and staying connected to their group.

Dual Receive lets you hear two channels simultaneously, Group Tone Scan helps compatible groups maintain communications when interference appears, and the transmit-power indicator gives useful feedback every time you key the microphone.

Add full 5 Watt UHF CB output, 12/24V compatibility, fast scanning, three memory groups, IP54 protection, a removable front panel and heavy-duty die-cast construction, and the DTX4000 becomes a highly capable communication solution for serious 4WD touring, trucks and commercial vehicles.