RFI 450-520MHz Ground Independent Mopole - MBC Base c/w 5m Cable (Tapered S/S Radiator) CD50-68-53
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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.
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 full 450–520MHz UHF band with no tuning required means a straightforward install with one less variable to get wrong on site.
- Patented Ground Independent Mopole technology means reliable performance from bull bars, mirror brackets, canopies, and other non-standard mounting positions.
- Heavy-duty tapered stainless steel radiator means exceptional durability while maintaining excellent RF performance.
- 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.
- Corrosion and weather-resistant construction means dependable performance in demanding outdoor conditions.
What's in the Box
- 1 x RFI CD50-68-53 Mopole antenna (tapered stainless steel radiator)
- MBC mounting base
- 5m low-loss coaxial cable, fitted
Key Specifications
| Brand | RFI |
| Model | CD50-68-53 |
| Frequency range | 450–520MHz |
| 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 | 395mm |
| Whip material | 17-7PH tapered stainless steel |
| Mounting | MBC base, included |
| Cable | 5m low-loss coaxial, fitted |
Download the RFI CD50-51 Series specifications (PDF)
Other Options in This Series
Need a different configuration or whip material? See CD50-68-70 (threaded stud, no cable) or CD51-68-50 (MBC base, flexible PVC radiator). Different mount and whip material options, pick the one that suits your installation.
Video
No product video currently available for this model.
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, and other specialist fleet vehicles.
Built for Commercial Fleets
Suitable for:
- Heavy transport
- Utility service vehicles
- Construction equipment
- Mining fleets
- Agricultural machinery
- Forestry vehicles
- Council and government fleets
- Emergency response vehicles
- Industrial maintenance vehicles
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?
Yes. We supply, install, test, and tune RFI antennas and complete mobile radio systems for commercial, industrial, and government customers throughout New Zealand.