RFI 450-520MHz Ground Independent Mopole - Threaded Stud (Flexible PVC Radiator)- CD51-68-70

RFI CD51-68-70 450–520MHz Ground Independent Mopole™ Antenna – Threaded Stud (Flexible PVC Radiator)

The RFI CD51-68-70 Ground Independent Mopole™ Antenna is a rugged UHF mobile antenna designed for professional two-way radio systems operating across the 450–520MHz frequency range. Featuring RFI's proven Ground Independent Mopole™ technology and a flexible PVC radiator, this antenna delivers reliable communications while standing up to the harsh conditions experienced by commercial fleets.

Unlike traditional quarter-wave antennas, the CD51-68-70 does not rely on a vehicle's metal body to provide a ground plane. This allows it to maintain excellent performance when installed on bull bars, mirrors, roof racks, canopies, service bodies, and other non-traditional mounting locations.

The flexible PVC radiator provides additional protection against impacts, making it an excellent choice for vehicles operating in forestry, construction, mining, agriculture, utilities, and transport.

Why Choose the RFI CD51-68-70?

The CD51-68-70 combines dependable UHF performance with outstanding durability for demanding fleet applications.

Key Features

• Covers the 450–520MHz UHF frequency range
• Patented Ground Independent Mopole™ technology
• Flexible PVC radiator for added durability
• Threaded stud mounting
• Omnidirectional radiation pattern
• Suitable for licensed UHF radio systems
• Excellent performance without a vehicle ground plane
• Heavy-duty construction for commercial use
• Weather and corrosion resistant
• Australian designed and manufactured

Ground Independent Performance

The CD51-68-70 is designed to perform consistently without relying on the vehicle body as a ground plane.

This allows installation on locations such as:

• Bull bars
• Mirror brackets
• Roof racks
• Canopies
• Toolboxes
• Service bodies
• Fibreglass panels
• Special purpose vehicles

This installation flexibility makes it ideal for modern commercial and utility vehicles where traditional roof mounting is not practical.

Flexible PVC Radiator

The flexible PVC radiator is designed to withstand the demands of daily commercial use.

Benefits include:

• Absorbs impacts from low branches
• Resists damage from loading equipment
• Flexible construction reduces breakage
• Excellent weather resistance
• Long service life
• Ideal for off-road applications

The durable PVC construction makes the antenna particularly well suited to harsh working environments.

Reliable UHF Communications

Designed for the 450–520MHz frequency range, the CD51-68-70 is suitable for many licensed UHF land mobile radio systems used throughout New Zealand.

Ideal applications include:

• Transport and logistics
• Utilities
• Civil construction
• Forestry
• Agriculture
• Mining operations
• Emergency services
• Local government
• Security companies
• Industrial facilities

Its omnidirectional radiation pattern provides reliable communications while vehicles remain on the move.

Threaded Stud Mounting

The antenna features a threaded stud connection, allowing it to be fitted to a wide range of compatible RFI antenna bases and heavy-duty mounting systems.

This provides:

• Secure installation
• Easy antenna replacement
• Broad compatibility
• Professional fleet installations
• Reliable mechanical performance

The threaded stud design is widely used across commercial vehicle fleets for its strength and simplicity.

Built for Commercial Fleets

The CD51-68-70 is engineered to deliver dependable performance in demanding environments.

Suitable for:

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

Its rugged construction makes it a trusted choice for organisations that rely on uninterrupted communications.

Why Buy From Mobile Systems Limited?

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

Our experienced team provides:

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

Whether you're fitting out a single vehicle or managing a nationwide fleet, we'll recommend the right antenna solution for reliable long-term performance.

Frequently Asked Questions

What frequencies does the CD51-68-70 support?

The antenna operates across the 450–520MHz UHF frequency range, making it suitable for many licensed UHF radio systems.

What is Ground Independent Mopole™ technology?

Ground Independent Mopole™ technology allows the antenna to perform effectively without relying on the vehicle body as a ground plane, providing greater flexibility when selecting mounting locations.

What are the advantages of the PVC radiator?

The flexible PVC radiator helps protect the antenna from impacts, vibration, and harsh environmental conditions, making it ideal for commercial and off-road vehicles.

Is this antenna suitable for heavy commercial vehicles?

Yes. The CD51-68-70 is designed for transport, utilities, construction, mining, forestry, agriculture, and industrial fleet applications.

Does the antenna fit standard RFI mounting bases?

Yes. The threaded stud design is compatible with a range of RFI antenna bases and mounting solutions.

Can Mobile Systems Limited install this antenna?

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