RFI 380-440MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Flexible PVC Radiator)- CD51-65-53
$212.82
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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.
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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 full 380–440MHz UHF band means one antenna serves the whole range, for installers working across multiple licensed channels.
- Patented Ground Independent Mopole technology means reliable performance from bull bars, mirror brackets, canopies, and other non-standard mounting positions.
- Flexible PVC radiator means it absorbs impacts from low branches and off-road knocks without permanent damage.
- MBC mounting base and 5-metre low-loss coaxial cable included means a complete, ready-to-install antenna solution with nothing extra to source.
- Suitable for analogue and digital radio systems means one antenna works across mixed fleets running older and newer radios.
- Weather and corrosion-resistant construction means dependable performance in demanding outdoor conditions.
What's in the Box
- 1 x RFI CD51-65-53 Mopole antenna (flexible PVC radiator)
- MBC mounting base
- 5m low-loss coaxial cable, fitted
Key Specifications
| Brand | RFI |
| Model | CD51-65-53 |
| Frequency range | 380–440MHz |
| Gain | 4dB over a 1/4 wave whip |
| Tuned bandwidth / VSWR | 13MHz at <1.5:1, field-tuneable using supplied chart |
| Power handling | 50W |
| Whip length | 360mm |
| Whip material | Flexible PVC radiator |
| Mounting | MBC base, included |
| Cable | 5m RG58C/U, fitted (no connector) |
Download the RFI CD50-51 (CD51-65-5x) installation sheet (PDF)
Other Options in This Series
Need a different mount or whip material? See CD50-65-50 (stainless whip, MBC base, no cable), CD50-65-70 (stainless whip, stud mount, no cable), or CD51-65-70 (PVC whip, stud mount, no cable). Different configurations, pick the one that suits your installation.
Video
No product video currently available for this model.
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, and other specialist commercial vehicles.
Built for Commercial Fleets
Suitable for:
- Commercial fleets and heavy transport
- Utility service vehicles
- Mining support vehicles
- Forestry equipment
- Agricultural machinery
- Council fleets
- Emergency response vehicles
- Construction equipment
- Industrial maintenance vehicles
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?
Yes. We supply, install, tune, and test RFI antenna systems and complete mobile radio solutions throughout New Zealand.
Specifications
RFI 380-440MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Flexible PVC Radiator)- CD51-65-53
$212.82