UHF310 Micro Size 5W UHF CB Radio | 80 Channel

📻 ORICOM UHF310 MICRO SIZE 5 WATT UHF CB RADIO – 80 CHANNEL

Ultra-Compact 5W UHF CB Radio with Flip LCD, 7 Colour Display & Microphone Controls

📡 The Oricom UHF310 is an ultra-compact 5 Watt UHF CB radio designed for modern vehicles, 4WDs, trucks, agricultural machinery and plant equipment where dashboard and mounting space is limited.

Despite its micro-size chassis, the UHF310 delivers the full 5 Watts of RF transmission power and supports the Australian 80-channel UHF CB system, providing a practical communication solution for touring, convoy travel, worksites, farms and commercial vehicles.

A clever flip-screen LCD function allows the display orientation to be reversed to suit different mounting positions, while the seven-colour backlit display lets you customise the appearance to better match your vehicle interior.

The heavy-duty microphone puts volume, channel and squelch controls within easy reach, reducing the need to access the radio body once installed.

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⚡ KEY FEATURES

📻 Full 5 Watt UHF CB Power
Delivers up to the full 5 Watts RF output power for reliable Australian UHF CB communications.

📡 80 UHF CB Channels
Supports the standard 80-channel Australian UHF CB system, including 75 voice channels.

📏 Ultra-Compact Micro Size
Measuring only 23.8mm high × 100mm wide × 94mm deep, the UHF310 is ideal where mounting space is tight.

🔄 Flip LCD Function
The display orientation can be flipped to provide greater flexibility when mounting the radio above or below a console, dash or equipment panel.

🌈 7 Colour Backlit Display
Choose from seven display colours to better match your dashboard lighting or personal preference.

🎙️ Heavy-Duty Control Microphone
Provides convenient volume, channel and squelch controls directly from the microphone.

🔊 Automatic Level Control
ALC helps maintain consistent transmitted audio levels for clearer communication.

📶 Duplex Repeater Capability
Supports repeater operation using the standard +750kHz transmit offset to potentially extend communication range where compatible repeaters are available.

🔍 Open & Priority Scan
Scan available UHF CB channels or maintain priority monitoring of an important channel.

⭐ Priority Channel
Provides quick access to a nominated priority channel.

🔐 38 CTCSS & 104 DCS Codes
Provides a broad selection of signalling codes for compatible group communications.

🔊 External Speaker Connection
A 3.5mm external speaker jack allows a compatible external speaker to be connected where the radio is installed out of the way or additional audio output is required.

🛡️ Electrical Protection
Includes over-voltage, over-current and reverse-polarity protection.

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📏 MICRO SIZE – IDEAL FOR MODERN VEHICLES

Finding space for a conventional UHF radio can be difficult in newer vehicles where dashboards, centre consoles and overhead storage areas are already crowded.

The UHF310 measures just:

Height: 23.8mm

Width: 100mm

Depth: 94mm

This compact footprint makes it particularly useful for:

• 🚙 4WDs and touring vehicles
• 🛻 Utes
• 🚚 Trucks
• 🚜 Agricultural machinery
• 🏗️ Plant and earthmoving equipment
• 🚐 Campers and touring vehicles
• 🧰 Commercial and service vehicles

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🔄 FLIP LCD FOR FLEXIBLE INSTALLATION

The flip LCD function is particularly useful when space dictates where the radio needs to be installed.

Depending on the mounting position, the screen can be flipped so the information remains correctly orientated and easy to read.

This provides greater flexibility for installations under dashboards, above consoles or in other compact locations.

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🌈 7 COLOUR BACKLIT DISPLAY

The UHF310 features a seven-colour backlit LCD, allowing the radio display to be customised to suit the vehicle interior.

This is particularly useful in vehicles where you want the UHF lighting to blend in more naturally with existing dashboard illumination.

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🎙️ HEAVY-DUTY MICROPHONE WITH CONTROLS

The supplied heavy-duty microphone provides direct access to key everyday functions including:

• 🔊 Volume control
• 📡 Channel control
• 🔇 Squelch control

This allows the main radio body to be mounted in a compact location while keeping commonly used controls conveniently accessible.

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📡 FULL 5 WATT RF OUTPUT

The UHF310 delivers a maximum RF output power of 5 Watts.

This makes it a full-power UHF CB radio despite its compact dimensions and allows it to be paired with an appropriately selected 50-ohm UHF antenna system.

⚠️ Actual communication range depends heavily on antenna type, antenna positioning, terrain, buildings, vehicle installation and whether direct simplex or repeater operation is being used.

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📶 DUPLEX REPEATER OPERATION

The UHF310 supports simplex operation as well as repeater operation with a +750kHz transmit offset.

Where a compatible UHF CB repeater is available, duplex operation can significantly extend practical communication coverage compared with direct vehicle-to-vehicle communication in suitable conditions.

⚠️ Repeater availability and coverage varies by location. Duplex capability does not guarantee increased range where no suitable repeater is accessible.

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🔍 OPEN & PRIORITY SCANNING

The UHF310 includes both open scan and priority scan functionality.

This allows the radio to monitor channels for activity rather than remaining locked to a single channel.

The priority-channel function also allows an important channel to be given additional monitoring priority.

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🔐 CTCSS & DCS SIGNALLING

The UHF310 incorporates:

38 CTCSS Codes

104 DCS Codes

These signalling options can be useful when communicating within compatible groups and reducing unwanted audio from other users sharing the same UHF CB channel.

⚠️ CTCSS and DCS do not create private or encrypted channels. Other users can still transmit on and monitor the underlying UHF CB channel.

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🎙️ AUTOMATIC LEVEL CONTROL – ALC

Automatic Level Control helps maintain more consistent transmitted audio levels.

This can improve communication when different users speak at different volumes or microphone distance varies during normal vehicle operation.

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🔊 3 WATT AUDIO OUTPUT

The receiver provides up to 3 Watts maximum audio output power.

If the radio is mounted somewhere that makes the built-in audio difficult to hear, the 3.5mm external speaker jack can be used with a suitable external speaker.

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⚡ DESIGNED FOR 12V VEHICLE ELECTRICAL SYSTEMS

Nominal Operating Voltage: 13.8V DC

Operating Voltage Range: 10–15V DC

This makes the UHF310 suitable for compatible nominal 12V vehicle electrical systems.

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🛡️ BUILT-IN ELECTRICAL PROTECTION

The UHF310 incorporates several electrical protection features:

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

Correct vehicle wiring and circuit installation are still required.

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🔧 ANTENNA REQUIREMENTS

Antenna Impedance: 50 Ohms

The choice of antenna can have a major influence on real-world performance.

For the best results, select an antenna suited to the vehicle and intended terrain and install it in an appropriate location with correctly terminated coaxial cable.

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📋 TECHNICAL SPECIFICATIONS

Brand: Oricom

Model: UHF310

Product Type: UHF CB Radio

RF Output Power: 5 Watts Maximum

Frequency Range TX/RX: 476.425–477.4125MHz

Number of Channels: 80 UHF CB Channels

Voice Channels: 75

Channel Spacing: 12.5kHz

Operating Modes: Simplex & Repeater

Repeater TX Offset: +750kHz

Scanning Speed: 130ms Per Channel

Open Scan: Yes

Priority Scan: Yes

Priority Channel: Yes

CTCSS Codes: 38

DCS Codes: 104

Antenna Impedance: 50 Ohms

Nominal Operating Voltage: 13.8V DC

Operating Voltage Range: 10–15V DC

Transmit Current Consumption: 1.5A with 50-Ohm Antenna Termination

Over-Voltage Protection: Voltage Regulator

Over-Current Protection: 2A Fuse

Reverse-Polarity Protection: Shunt Diode

Frequency Stability: ±2.5ppm

Modulation: F3E / FM

Maximum Deviation: 2.5kHz

Spurious Emissions: <-70dBm

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

Receiver Circuit Type: Direct Conversion via Single DSP Chip

Intermediate Frequency: 137kHz

Maximum Usable Sensitivity: Less Than -122dBm at 12dB SINAD

Maximum Audio Output Power: 3 Watts

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

External Speaker Connection: 3.5mm Jack

Display: 7 Colour Backlit LCD

Flip LCD Function: Yes

Microphone: Heavy Duty with Volume, Channel & Squelch Controls

Automatic Level Control: Yes

Dimensions (H × W × D): 23.8 × 100 × 94mm

Compliance: AS/NZS 4365:2011

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🔧 INSTALLATION CONSIDERATIONS

• Use on a compatible 12V electrical system within the stated 10–15V operating range
• Retain the specified 2A fuse protection
• Use a compatible 50-ohm UHF antenna system
• Mount the antenna in an appropriate location for the vehicle
• Route power and antenna cabling away from excessive heat, abrasion and moving components
• Mount the radio where the microphone connection and speaker remain practical
• Use the flip-screen function if mounting orientation requires it
• Use a suitable external speaker if the radio chassis is installed in a concealed location

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❓ FREQUENTLY ASKED QUESTIONS

Is the UHF310 a full-power UHF even though it is so small?

Yes. The UHF310 provides a maximum RF output of 5 Watts, giving you full-power UHF CB performance in a compact 100mm-wide chassis.

Will it fit in a vehicle where I don't have much dashboard space?

That is one of the UHF310's main advantages. At only 23.8 × 100 × 94mm, it is designed specifically for installations where space is limited.

Can I mount the radio upside down?

The flip LCD function provides additional flexibility where the radio needs to be mounted in an alternative orientation. The final installation should still keep the unit securely mounted and controls, wiring and ventilation practical.

What does the flip-screen function do?

It reverses the LCD orientation so the information remains correctly displayed when the radio is installed in a different mounting orientation.

Can I change the screen colour?

Yes. The display has seven selectable backlight colours.

Can I control the radio from the microphone?

Key everyday controls are available on the heavy-duty microphone, including volume, channel and squelch adjustment.

Does it have all 80 Australian UHF CB channels?

Yes. The radio supports 80 UHF CB channels, with 75 identified as voice channels in the specification.

Can I use UHF repeaters with it?

Yes. The UHF310 supports repeater operation with the standard +750kHz transmit offset. Actual repeater coverage depends on your location and the repeater network available in the area.

Will duplex mode automatically give me more range?

No. Duplex allows communication through a compatible repeater. It can greatly increase coverage where an accessible repeater exists, but it provides no benefit if there is no suitable repeater within range.

How far will this UHF transmit?

There is no single reliable distance figure. Range depends heavily on terrain, antenna selection, antenna mounting position, nearby obstructions and whether communication is direct or through a repeater.

What antenna should I use with it?

The radio requires a 50-ohm antenna system. The best antenna depends on your vehicle and where you normally travel. Different antenna gain characteristics can suit open country, mixed touring or more mountainous terrain differently.

Does an antenna come with the radio?

An antenna is not identified in the information provided here as an included item, so package contents should be checked before assuming one is supplied.

Can I fit a larger external speaker?

Yes. The radio includes a 3.5mm external speaker jack for connection to a compatible external speaker.

Would an external speaker be useful?

It can be particularly useful in noisy 4WDs, trucks and machinery, or when the radio body is installed under a dash or in another concealed position.

What do CTCSS and DCS do?

They allow compatible radios to mute unwanted transmissions that do not carry the selected signalling code. This can make group communications more convenient on busy channels.

Do CTCSS or DCS make my conversation private?

No. They are squelch signalling systems, not encryption. Other radios monitoring the underlying channel can still receive the transmission.

What does priority scan do?

Priority scanning allows the radio to monitor other channels while giving additional attention to a nominated priority channel.

Is this suitable for a 4WD?

Yes. Its compact size, full 5W output, microphone controls, repeater capability and selectable display colours make it particularly well suited to 4WD and touring installations.

Is it suitable for tractors and earthmoving equipment?

Yes. The UHF310 is well suited to plant and agricultural equipment where installation space is restricted, provided the electrical system and mounting arrangement meet the radio's requirements.

Can I connect it directly to a 24V truck?

No. Its stated operating range is 10–15V DC. A 24V vehicle would require an appropriately rated 24V-to-12V conversion solution rather than connecting the radio directly to 24V.

How much current does it draw when transmitting?

The specified transmit current consumption is approximately 1.5A when operating with a 50-ohm antenna termination.

What 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 specification.

Does it have over-voltage protection?

Yes. Voltage regulation is listed as the unit's over-voltage protection method.

What should I check before buying?

Confirm you have a suitable nominal 12V electrical supply within the radio's 10–15V operating range, decide where the compact 100 × 94 × 23.8mm radio body will be mounted, select a suitable 50-ohm UHF antenna and determine whether an external speaker will be needed for your installation.

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📻 FULL 5 WATT UHF PERFORMANCE WITHOUT THE BULKY RADIO

The Oricom UHF310 is designed for installations where space is limited but communication performance still matters.

With full 5W RF output, 80 UHF CB channels, duplex repeater capability, open and priority scanning, 38 CTCSS and 104 DCS codes, microphone-mounted controls, a flip LCD and seven selectable backlight colours, it packs an impressive range of features into an ultra-compact chassis.

For 4WDs, touring vehicles, trucks, agricultural machinery and plant equipment where you want a discreet UHF installation without sacrificing full-power CB functionality, the UHF310 is an excellent compact solution.