Collection of RFI CD51-65-53 in a gallery layout

RFI 380-440MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Flexible PVC Radiator)- CD51-65-53

$165.60
Tax included. Shipping calculated at checkout.

GST Inclusive. Discounts and Shipping calculated at checkout.

Quantity

Pickup available from the Mobile Systems Showroom: 1/14 Portside Drive, Mount Maunganui. We will notify you when your order is ready for collection.

In stock, ready to be shipped

RFI CD51-65-53 380–440MHz Ground Independent Mopole™ Antenna – MBC Base with 5m Cable

The RFI CD51-65-53 Ground Independent Mopole™ Antenna is a heavy-duty UHF mobile antenna engineered for professional two-way radio systems operating across the 380–440MHz frequency range. Designed for commercial fleets, public safety, utilities, transport, mining, and industrial applications, it delivers reliable communications where durability and consistent performance are essential.

Featuring RFI's patented Ground Independent Mopole™ technology, a flexible PVC radiator, MBC mounting base, and 5-metre coaxial cable, the CD51-65-53 provides excellent installation flexibility while maintaining dependable radio performance without relying on a vehicle's body as a ground plane.

Whether installed on a truck, utility vehicle, emergency response vehicle, or specialised fleet, this antenna is built to perform in the toughest environments.


Why Choose the RFI CD51-65-53?

Designed for demanding commercial applications, the CD51-65-53 delivers dependable communications with a rugged construction built for everyday use.

Key Features

  • Covers the 380–440MHz UHF frequency band
  • Patented Ground Independent Mopole™ technology
  • Flexible PVC radiator
  • Heavy-duty MBC mounting base
  • Supplied with 5-metre low-loss coaxial cable
  • Omnidirectional radiation pattern
  • Suitable for analogue and digital radio systems
  • Weather and corrosion-resistant construction
  • Ideal for commercial fleet installations
  • Australian designed and manufactured

Ground Independent Technology

Unlike conventional mobile antennas, the CD51-65-53 does not require a metal ground plane to operate efficiently.

This allows installation on:

  • Bull bars
  • Mirror brackets
  • Roof racks
  • Canopies
  • Toolboxes
  • Fibreglass bodies
  • Service bodies
  • Specialist commercial vehicles

This flexibility makes installation easier while delivering reliable communications across your radio network.


Flexible PVC Radiator

The antenna features a flexible PVC radiator designed to withstand the rigours of everyday commercial use.

Benefits include:

  • Absorbs impacts from low branches
  • Resists damage in off-road environments
  • Handles vibration and constant movement
  • Excellent weather resistance
  • Long service life
  • Reduced maintenance requirements

It is an ideal choice for vehicles operating in demanding conditions where antenna durability is critical.


Reliable Communications Across the UHF Band

Designed for operation across the 380–440MHz frequency range, the CD51-65-53 supports a wide range of licensed UHF land mobile radio systems.

Ideal for:

  • Emergency services
  • Utilities
  • Mining operations
  • Transport and logistics
  • Civil construction
  • Local government
  • Industrial facilities
  • Security companies
  • Public safety organisations
  • Infrastructure maintenance

Its omnidirectional radiation pattern provides dependable coverage while vehicles remain on the move.


Supplied with 5 Metres of Cable

The antenna includes a 5-metre low-loss coaxial cable, providing flexibility for a wide range of vehicle installations.

The generous cable length makes it suitable for:

  • Passenger vehicles
  • Utes
  • Trucks
  • Utility vehicles
  • Heavy machinery
  • Agricultural equipment
  • Service bodies
  • Fleet vehicles

Professional installation ensures optimum cable routing and maximum radio performance.


Built for Commercial Fleets

The CD51-65-53 is engineered for continuous use in harsh environments.

Suitable for:

  • Commercial fleets
  • Heavy transport
  • Utility service vehicles
  • Mining support vehicles
  • Forestry equipment
  • Agricultural machinery
  • Council fleets
  • Emergency response vehicles
  • Construction equipment
  • Industrial maintenance vehicles

Its robust construction ensures reliable performance year after year.


Why Buy From Mobile Systems Limited?

Mobile Systems Limited supplies professional mobile radio systems and antenna solutions throughout New Zealand.

Our experienced team provides:

  • Fleet communication system design
  • Vehicle antenna selection
  • Professional installations
  • Radio programming
  • Antenna testing and VSWR tuning
  • Fleet upgrades
  • Ongoing servicing and technical support

Whether you're equipping a single vehicle or a nationwide fleet, we'll help you choose the right antenna solution for dependable communications.


Frequently Asked Questions

What frequencies does the CD51-65-53 support?

The antenna operates across the 380–440MHz UHF frequency range, making it suitable for many licensed analogue and digital radio systems.

What is Ground Independent Mopole™ technology?

Ground Independent Mopole™ technology allows the antenna to deliver reliable performance without relying on the vehicle body as a ground plane, providing greater flexibility when choosing a mounting location.

What are the benefits of the flexible PVC radiator?

The flexible PVC radiator is designed to withstand impacts, vibration, and harsh weather, making it ideal for commercial vehicles operating in demanding environments.

Does the antenna include a mounting base?

Yes. The CD51-65-53 is supplied with an MBC mounting base and 5 metres of coaxial cable, making it ready for professional installation.

Is this antenna suitable for digital radio systems?

Yes. The antenna is compatible with both analogue and digital two-way radio systems operating within the specified frequency range.

Can Mobile Systems Limited install this antenna?

Absolutely. Mobile Systems Limited supplies, installs, tunes, and tests RFI antenna systems and complete mobile radio solutions throughout New Zealand.

Specifications

BrandRFI

MountingMBC Base (Included)

Frequency MHz380-440

Tuned Bandwidth13 MHz @ <1.5:1

VSWRVSWR13 MHz @ <1.5:1

Nominal Gain [dBi]4dB over a 1/4 wave

Power [W]50

Band380-440 MHz

TuningField tune to minimum VSWR using supplied tuning chart

Cable And Connector5m RG58C/U & No Connector

Whip Length mm360

Whip Material17-7 PH Stainless Steel

Antenna TypeGround Independent, MBC Base Mount, Vehicle

Antenna ApplicationVehicle Antenna

Antenna ConfigurationSISO

Collection of RFI CD51-65-53 in a gallery layout

RFI 380-440MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Flexible PVC Radiator)- CD51-65-53

$165.60