Ubiquiti RocketDish 5GHz 30dBi (RD-5G30): The Ultimate Guide
Overview and Introduction
The Ubiquiti RocketDish 5GHz 30dBi (RD-5G30) is not a standalone radio, but a high-performance, parabolic dish antenna designed to be the cornerstone of powerful, long-distance wireless systems. It is part of Ubiquiti’s “Rocket” ecosystem, where you pair a dedicated radio (like the Rocket 5AC Prism) with a specialized antenna for maximum performance.
Its key feature is the high 30 dBi gain achieved through a precise parabolic reflector design. This extremely focused signal is ideal for overcoming challenging distances and interference, making it a top-tier choice for demanding professional applications.
Key Features at a Glance
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Extreme High Gain:Â 30 dBi parabolic dish for maximum signal concentration and long-range links.
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Narrow Beamwidth: A very tight 4° beamwidth minimizes interference and maximizes signal quality over long distances.
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Rugged, All-Metal Design:Â Built with a durable aluminum reflector and steel bracket to withstand harsh outdoor environments.
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Rocket Ecosystem Compatibility:Â Seamlessly integrates with Ubiquiti Rocket radios using a proprietary short cable.
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Professional Performance:Â The go-to solution for carrier-class PtP backhauls and PtMP base stations serving many clients.
Full Technical Specifications
| Category | Specification |
|---|---|
| Model | RD-5G30 |
| Antenna Type | Parabolic Dish |
| Frequency Range | 4.90 – 5.95 GHz (Covers full 5GHz band) |
| Gain | 30 dBi |
| Horizontal Beamwidth | 4° |
| Vertical Beamwidth | 4° |
| Polarization | Dual Linear (Slant 45°) |
| VSWR | < 1.5 |
| Cross Pol. Discrimination | > 25 dB |
| Wind Load | 90 N @ 200 km/h |
| Wind Survival | 200 km/h |
| Mounting | Universal RocketDish Mount (Included) |
| Connector | Proprietary (2x RP-SMA for MIMO rockets) |
| Cable | Integrated, 1 ft (0.3 m) low-loss cable |
| Weight | 3.7 kg |
| Dimensions | 900 mm (Dish Diameter) |
| Operating Temperature | -40°C to 80°C |
| Ingress Protection | IP67 (Junction Box) |
Performance and Real-World Use
What is the RocketDish RD-5G30 Used For?
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Long-Range PtP Backhaul: The primary use. Connecting two sites over 50km+ with high throughput. Ideal for linking WISP towers or campus buildings.
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PtMP Base Station Sector:Â Serving as a high-performance sector antenna for a base station, providing coverage to a narrow, distant corridor of client devices.
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Challenging Link Environments:Â Overcoming weak signal levels in links with obstacles or high noise floors due to its exceptional gain.
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Carrier-Grade Applications:Â Used by WISPs and telecom providers for reliable, high-availability backbone connections.
Throughput and Range
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Performance is determined by the paired radio. When combined with a modern radio like the Rocket 5AC Prism, this antenna can facilitate links with real throughput exceeding 450+ Mbps over very long distances.
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Range: With clear Line-of-Sight, links of 50km to 60km+ are achievable and stable. The limiting factor is often radio sensitivity and Fresnel zone clearance, not the antenna’s gain.
Crucial Note: The extremely narrow 4° beamwidth makes precise alignment critical. Using a professional alignment tool or the built-in AirPrism technology in compatible radios is essential for a successful installation.
Setup and Compatibility Guide
What’s in the Box?
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RocketDish RD-5G30 Antenna
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Universal RocketDish Mount
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Mounting Hardware
The Missing Piece: The Rocket Radio
The RD-5G30 is an antenna only. You must purchase a compatible Ubiquiti Rocket radio separately. The antenna connects directly to the radio, which is then mounted on the back of the dish.
Highly Compatible Radios:
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Rocket 5AC Prism (Gen2) – Recommended choice for modern AC performance and easy alignment.
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Rocket 5AC Lite – A cost-effective alternative for slightly shorter links.
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Rocket M5Â (Older, but still functional) – For legacy MIMO systems.
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RocketDish Adapter Kit – Allows you to use older Rocket M (single chain) radios.
Step-by-Step Installation Process:
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Assemble the Mount:Â Attach the Universal Mount to a stable, vertical pole. Ensure it is secure.
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Attach the Radio:Â Mount your chosen Rocket radio to the back of the RD-5G30 antenna using the provided holes and secure it.
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Connect the Antenna:Â Plug the integrated, proprietary cable from the antenna directly into the antenna ports on the Rocket radio. It’s a keyed connector for easy installation.
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Connect Cables:Â Use the included PoE injector for the Rocket radio. Connect the Ethernet and power cables.
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Align the Antenna (Critical):
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This is the most challenging part due to the 4° beamwidth.
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Use the AirPrism tool in the radio’s airOS interface (if available) for live signal feedback.
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Make tiny, incremental adjustments to the azimuth and elevation.
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Tighten all bolts securely once the highest possible signal (RSSI) is achieved.
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Conclusion:
The Ubiquiti RocketDish RD-5G30 is a professional-grade antenna for those who demand the utmost in range and signal quality. While it requires a more complex setup and a separate radio investment, its unparalleled 30 dBi gain and robust build make it an indispensable tool for creating carrier-class wireless bridges. If you have a challenging long-distance link, the RD-5G30, paired with a modern Rocket radio, is one of the most powerful and reliable solutions in the Ubiquiti arsenal.



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