Commercial and CB radio in one

VX-456 CB

The VX-456 is a dual mode CB and UHF Commercial portable radio. For durable, on-the-job responsiveness, the VX-456 maximises worker uptime with flexible communication options, expanded safety applications and convenient built-in features designed for heavy duty, commercial and recreational use.
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CB or commercial frequency modes

The VX-456 CB radio provides both CB and commercial frequency modes, allowing you to choose the best option for your usage. If you require private communications it is best to obtain a license through your Authorised Vertex Standard Channel Partner to use a commercial frequency. If this is not a requirement then the CB option is available straight out of the box.

Resistance for Extreme Environments

The VX-456 CB water, dust and drop resistant radios are built tough (IP67 ingress protection standard). This radio can be submersed in water for up to 30 minutes at a depth of one metre! It has also been tested to meet military standards for ruggedness.

Monitor Worker Safety

Read about all the VX-456 CB safety features here.
As with all Vertex Standard radios, the VX-456CB includes built-in Emergency and Lone Worker alerts. Emergency notification is user-initiated with a press of a button for the radio to switch to a designated channel and send an alert for help. Lone Worker mode is a built-in timer that requires the user to reset at a predetermined interval. If not reset, the radio automatically switches to Emergency mode to alert help.

When constant contact is required at all times, Vertex Standard’s exclusive Auto-Range Transpond System II (ARTS II™) is included to inform the user that other ARTS II - equipped radios are within communication range.

No two job sites are alike and the optional Man Down function (with DVS-9 unit) is programmable to monitor a variety of worker timed safety scenarios vertically and horizontally as well as worker degree of motion. Adjusting the settings of the 3-axis sensor adapts the radio to each distinct work environment to monitor movement.

Audio and Voice Detection Sensitivity Audio

Equipped with 700mW audio output it’s perfect for noisy work environments. Users can make use of the Channel Announcement function, which audibly tells you the channel description to simplify changing channels when focused on other tasks simultaneously.

Expanded, built-in signalling for flexibility

Includes MDC-1200® encode/decode along with DTMF, 2-tone and 5-tone encode/decode providing selective radio calling and efficiency in supporting a variety of discrete communications needs.

Manageable System for Large Group Communications

The VX-456 CB radio has a massive 512-channel capacity and 32 groups to easily manage a variety of calls at the most complex job sites or plant operations. It also includes Direct Channel Entry to punch in the channel desired from the keypad for fast navigation.

Vertex Standard’s exclusive Auto-Range Transpond System (ARTS™ and ARTS II™)

A function that keeps the user within communication range with other ARTS™- equipped radios, to remain in constant contact range.

Additional Features

  • 512 channels / 32 Groups in commercial mode
  • 80 channels in UHF CB mode
  • 5 Watts
  • 7 Programmable keys
  • 8 Character alphanumeric display
  • IP Rating: 67
  • 700 mW Audio output
  • Whisper mode
  • Compander
  • Clear voice
  • Voice inversion encryption (on/off activation)
  • Minimum volume control
  • Battery: 2300 mAh Li-Ion Uni
  • RX/TX Battery powersave
  • Auto-Range Transpond System II (ARTS II™)
  • Channel announce
  • Voice activation (VOX)
  • Digital voice storage (option DVS-8)
  • Man down (option DVS-9) with digital voice storage
  • Radio-to-radio cloning
  • PC Programming
  • UHF high 450-520 MHz


  • CTCSS/DCS Encode/Decode
  • Dual 2-Tone Decode
  • 2-Tone Encode/Decode
  • 5-Tone Encode/Decode
  • Remote Stun/Kill/Revive (5-tone)
  • Emergency
  • Lone Worker
  • DTMF Speed Dial
  • DTMF Paging
  • MDC-1200® Encode/Decode


  • Scan
  • Priority
  • Dual Watch
  • Follow Me
  • Talk Around
  • Scan Set
  • 32 Scan List
General Specification
Frequency Range 450~520MHz
Number of Channels and Groups 512 channels / 32 Groups in commercial mode 80 channels in UHF CB mode and 16 Extra Receive Only Channels
Power Supply Voltage 7.4 V DC ± 20%
Channel Spacing 12.5 / 20 / 25 kHz
PLL Steps 5 / 6.25 kHz
Battery Life (5-5-90 duty)
2300 mAh FNB-V134LI

18 hours (w/saver) / 15.6 hours
IP Rating IP 67
Operating Temperature Range -22º F to +140º F (-30º C to +60º C)
Frequency Stability ± 2.5 ppm
RF Input-Output Impedance 50 Ohms
Dimension (H x W x D) 109 x 58.5 x 43 mm (w/FNB-V134LI)
Weight (Approx.) 340 g (w/FNB-V134LI, ANT, Belt Clip)
Receiver Specification*
Sensitivity 12 dB SINAD 0.32 μV
Adjacent Channel Selectivity 70 dB / 65 dB
Hum and Noise 45 dB / 40 dB
Intermodulation 70 dB / 65 dB
Spurious and Image Rejection 70 dB
Audio Output 700 mW (internal @ 16 Ohms, 5% THD)
500 mW (external @ 4 Ohms, 5% THD)
*Measured by TIA/EIA-603
Transmitter Specification*
Output Power 5 / 2.5 / 1 / 0.25 Watt (selectable by channel)
Modulation 16K0F3E, 11K0F3E
Conducted Spurious Emissions 70 dB below carrier
FM Hum & Noise 45 dB / 40 dB
Audio Distortion < 3 % @1 kHz
*Measured by TIA/EIA-603
  • ATU-16F: 470~520 MHz 134.6MM (included)
  • FNB -V134: Li 2300 mAh Li-Ion (high capacity battery) UNI (included)
  • FNB -V133: Li 1380 mAh Li-Ion (slim line battery) UNI optional accessory
  • CD-58: Single unit charger base (included)
  • PA-55H: Power Supply 16V, @ 1Amp to suit CD-58 (included)
  • VAC-6058: 6 Unit Multi Radio Charger VAC-Uni
  • MH-81A4B: Voice activated (VOX) headset
  • VH-215S: Single muff padded headset
  • MH-360S: Compact speaker
  • MH-450S: Standard speaker
  • MH-45B4B: Noise cancelling speaker
  • MH-66A4B: Submersible Speaker (IP-67)
  • MH-81A4B: Over-the-head light duty VOX (Voice Activation) headset
  • CLIP-20: Belt clip (included)
  • LCC-459H: Leather case, belt loop (FNB-V134Li-Uni)
  • LCC-459SH: Leather case, swivel belt loop (FNB-V134Li-Uni)
Option Boards
  • DVS-8 Digital voice storage (120 seconds)
  • Man down and digital voice storage (120 seconds)
Spec Sheet Downloads
Owner's Manual Downloads