Collection of RFI CD50-68-53 in a gallery layout

RFI 450-520MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Tapered S/S Radiator) CD50-68-53

$171.35
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Pickup available from the Mobile Systems Showroom: 1/14 Portside Drive, Mount Maunganui. We will notify you when your order is ready for collection.

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RFI CD50-68-53 450–520MHz Ground Independent Mopole™ Antenna – MBC Base with 5m Cable

The RFI CD50-68-53 Ground Independent Mopole™ Antenna is a professional UHF mobile antenna designed for reliable communications across the 450–520MHz frequency range. Built for demanding commercial, industrial, mining, transport, utility, and emergency service applications, it combines RFI's proven Ground Independent Mopole™ technology with a durable tapered stainless steel radiator to deliver outstanding performance in challenging environments.

Supplied with an MBC mounting base and 5-metre low-loss coaxial cable, the CD50-68-53 provides installers with a complete antenna solution for professional mobile radio systems. Its ground independent design allows consistent performance even when mounted on vehicles where a traditional metal ground plane is unavailable.


Why Choose the RFI CD50-68-53?

The CD50-68-53 has been engineered to deliver dependable communications and long service life in demanding fleet applications.

Key Features

  • Covers the 450–520MHz UHF frequency band
  • Patented Ground Independent Mopole™ technology
  • Heavy-duty tapered stainless steel radiator
  • MBC mounting base
  • Supplied with 5-metre low-loss coaxial cable
  • Omnidirectional radiation pattern
  • Suitable for analogue and digital radio systems
  • Performs without requiring a vehicle ground plane
  • Corrosion and weather-resistant construction
  • Australian designed and manufactured

Ground Independent Performance

Unlike conventional mobile antennas, the CD50-68-53 does not rely on the vehicle body to act as a ground plane.

This allows installation on:

  • Bull bars
  • Mirror brackets
  • Roof racks
  • Canopies
  • Toolboxes
  • Service bodies
  • Fibreglass vehicle panels
  • Specialist fleet vehicles

The result is greater installation flexibility while maintaining reliable radio coverage.


Heavy-Duty Stainless Steel Radiator

The tapered stainless steel whip is designed to provide exceptional durability while maintaining excellent RF performance.

Benefits include:

  • Flexible design that withstands impacts
  • High resistance to vibration
  • Corrosion-resistant stainless steel construction
  • Long service life
  • Low maintenance requirements
  • Ideal for harsh commercial environments

Its tapered profile helps absorb knocks from branches, loading equipment, and low-clearance obstacles without compromising performance.


Reliable UHF Communications

Designed for operation across the 450–520MHz frequency range, the CD50-68-53 is suitable for a wide variety of licensed UHF land mobile radio systems.

Ideal for:

  • Commercial fleet communications
  • Transport and logistics
  • Utilities
  • Civil construction
  • Mining operations
  • Emergency services
  • Local government
  • Security organisations
  • Industrial facilities
  • Infrastructure maintenance

Its omnidirectional radiation pattern provides dependable coverage while vehicles remain in motion.


Supplied with 5 Metres of Cable

The antenna includes a 5-metre low-loss coaxial cable, allowing for straightforward installation on a wide variety of vehicle types.

Suitable for:

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

The generous cable length provides flexibility for professional installations while helping minimise signal loss.


Built for Commercial Fleets

The CD50-68-53 is engineered to withstand the harsh conditions encountered by working vehicles every day.

Suitable for:

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

Its rugged construction ensures reliable communication where operational downtime is not an option.


Why Buy From Mobile Systems Limited?

Mobile Systems Limited supplies professional two-way radio systems and antenna solutions throughout New Zealand.

Our experienced team provides:

  • Mobile radio system design
  • Fleet antenna selection
  • Professional vehicle installations
  • Radio programming
  • Antenna testing and VSWR optimisation
  • Fleet communication upgrades
  • Ongoing servicing and technical support

Whether you're equipping a single vehicle or managing a nationwide fleet, we'll help you select the right antenna solution for dependable long-term performance.


Frequently Asked Questions

What frequencies does the CD50-68-53 support?

The antenna is designed for licensed UHF radio systems operating between 450MHz and 520MHz.

What is Ground Independent Mopole™ technology?

Ground Independent Mopole™ technology enables the antenna to perform efficiently without relying on the vehicle body as a ground plane, giving installers greater flexibility when selecting a mounting location.

What are the benefits of the tapered stainless steel radiator?

The tapered stainless steel whip provides excellent durability, flexibility, and corrosion resistance, making it ideal for commercial vehicles operating in demanding environments.

Does the antenna include a mounting base and cable?

Yes. The CD50-68-53 is supplied with an MBC mounting base and 5 metres of low-loss coaxial cable, providing a complete antenna solution ready for professional installation.

Is the antenna suitable for digital radio systems?

Yes. It is compatible with both analogue and digital UHF radio systems operating within the 450–520MHz frequency range.

Can Mobile Systems Limited install this antenna?

Absolutely. Mobile Systems Limited supplies, installs, tests, and tunes RFI antennas and complete mobile radio systems for commercial, industrial, and government customers throughout New Zealand.

Specifications

BrandRFI

MountingThreaded Stud

Frequency MHz450 - 520

Tuned Bandwidth13 MHz @ <1.5:1

VSWRVSWR13 MHz @ <1.5:1

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

Power [W]50

Band450 - 520MHz

TuningField tune to minimum VSWR using supplied tuning chart

Cable And ConnectorNot included, order separately. See note (2)

Whip Length mm395

Whip Material17-7 PH Stainless steel

Antenna TypeGround Independent, MBC Base Mount, Vehicle

Antenna ApplicationVehicle Antenna

Antenna ConfigurationSISO

Collection of RFI CD50-68-53 in a gallery layout

RFI 450-520MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Tapered S/S Radiator) CD50-68-53

$171.35