RFI RDA6-65 Ruggedised 6 Element Yagi Antenna 400–420MHz 10dBi (Black Powder Coat)

The RFI RDA6-65 Ruggedised 6 Element Yagi Antenna is a high-performance directional antenna designed for professional radio communications operating across the 400–420MHz UHF frequency band. Delivering 10dBi of gain, it provides outstanding performance for point-to-point radio links, repeater systems, SCADA networks, telemetry, and critical communications infrastructure.

Manufactured from heavy-duty welded aluminium and finished with a durable black powder coating, the RDA6-65 is engineered to withstand harsh environmental conditions while maintaining exceptional RF performance. Its directional radiation pattern and excellent front-to-back ratio help maximise signal strength while minimising interference, making it ideal for fixed-site communications throughout New Zealand.

Why Choose the RFI RDA6-65?

The RDA6-65 is purpose-built for organisations requiring reliable long-distance communications in demanding outdoor environments.

Key Features

• Operates across the 400–420MHz UHF frequency range
• High 10dBi directional gain
• Rugged 6-element Yagi design
• Heavy-duty welded aluminium construction
• Durable black powder-coated finish
• Narrow beamwidth for focused signal performance
• High front-to-back ratio reduces interference
• DC-grounded elements for lightning and static protection
• N Female connector with weather-resistant cable tail
• Designed for permanent outdoor installations
• Australian designed and manufactured

High-Gain Directional Performance

The RDA6-65 concentrates RF energy into a focused beam, extending communication distances while improving overall network efficiency.

Ideal applications include:

• Point-to-point radio links
• Fixed repeater stations
• SCADA systems
• Telemetry networks
• Utility communications
• Mining operations
• Transport infrastructure
• Industrial radio systems
• Remote monitoring
• Public safety communications

Its directional design delivers stronger signals over longer distances than omnidirectional antennas, making it ideal for fixed-site installations.

Built for Harsh Outdoor Environments

Designed to perform in some of the toughest conditions, the RDA6-65 offers outstanding mechanical strength and long-term reliability.

Benefits include:

• Excellent resistance to high winds
• Heavy-duty welded construction
• Superior vibration resistance
• Corrosion-resistant black powder-coated finish
• Long service life with minimal maintenance
• Suitable for exposed coastal, alpine, and industrial environments

The durable finish also provides additional protection against weathering, ensuring reliable performance year after year.

Reduced Interference for Better Signal Quality

The antenna's high front-to-back ratio helps reject unwanted signals from behind the antenna, improving communication clarity and system reliability.

Advantages include:

• Reduced RF interference
• Improved receive sensitivity
• Cleaner transmitted and received signals
• Increased network reliability
• Better long-distance link performance

This makes the RDA6-65 an excellent choice for busy RF environments where signal quality is critical.

Professional Fixed-Site Design

Every aspect of the RDA6-65 has been engineered for permanent infrastructure installations.

Construction features include:

• Heavy-duty aluminium boom
• Precision aluminium elements
• Welded construction for maximum strength
• Black powder-coated finish
• Weather-resistant N Female connector
• Short cable tail for simplified installation
• DC-grounded design for improved lightning and static protection

The antenna is ideal for communications towers, repeater sites, and infrastructure projects where reliability is essential.

Typical Applications

The RFI RDA6-65 is well suited to:

• Repeater sites
• Communications towers
• Utility networks
• Mining operations
• Transport and rail communications
• Industrial facilities
• Local government radio systems
• Emergency services
• SCADA networks
• Telemetry systems
• Remote communications infrastructure

Why Buy From Mobile Systems Limited?

Mobile Systems Limited supplies professional radio communication infrastructure throughout New Zealand.

Our experienced team offers:

• Fixed-site radio system design
• Repeater infrastructure solutions
• Directional antenna selection
• Professional installation services
• RF testing and optimisation
• Coverage planning
• Network commissioning
• Ongoing servicing and technical support

Whether you're upgrading an existing communications site or building a new radio network, we'll help you select the right antenna solution for maximum performance and reliability.

Frequently Asked Questions

What frequency range does the RDA6-65 cover?

The RDA6-65 is designed for professional radio systems operating between 400MHz and 420MHz.

What is the gain of the antenna?

The antenna provides 10dBi of directional gain, making it ideal for long-distance point-to-point links and repeater applications.

What is a Yagi antenna?

A Yagi antenna is a directional antenna that focuses radio energy in one direction, increasing communication distance and reducing interference compared with omnidirectional antennas.

Is the antenna suitable for harsh outdoor environments?

Yes. The welded aluminium construction and durable black powder-coated finish are designed to withstand harsh weather, vibration, and demanding outdoor conditions.

What connector does the antenna use?

The RDA6-65 is fitted with an N Female connector and a weather-resistant cable tail for reliable outdoor performance.

Can Mobile Systems Limited install this antenna?

Absolutely. Mobile Systems Limited supplies, installs, aligns, tests, and commissions professional fixed-site antenna systems, repeater infrastructure, and complete radio communication networks throughout New Zealand.