Product Description
Ubiquiti Networks AM-3G18-120 airMAX 3 GHz Sector Antenna (18 dBi)
The AM-3G18-120 from Ubiquiti is a carrier-class 3 GHz sector antenna engineered for high-performance Point-to-MultiPoint (PtMP) deployments. Designed to integrate seamlessly with Rocket M BaseStations, this antenna enables operators to build scalable, high-capacity base stations in licensed and lightly licensed 3 GHz bands.
Featuring 2×2 MIMO, 18 dBi gain, and airMAX TDMA technology, the AM-3G18-120 delivers reliable throughput, excellent noise immunity, and predictable latency—ideal for WISPs, ISPs, and enterprise outdoor networks. The antenna’s wide 120° sector coverage, strong cross-polarization isolation, and electrical downtilt help optimize coverage while minimizing interference.
Built for outdoor use, the AM-3G18-120 includes pole mount hardware, RocketM mounting bracket, and weatherproof RF jumpers, making deployment fast and straightforward.
Key Features
3 GHz operating frequency (3.3–3.8 GHz)
18 dBi high-gain sector antenna
2×2 MIMO for increased throughput and reliability
120° sector coverage for PtMP base stations
airMAX TDMA support for low latency and high scalability
Compatible with Rocket M BaseStations
Excellent cross-polarization isolation (≥28 dB)
Outdoor-rated, carrier-class construction
Performance & Design Highlights
Optimized for High-Density Networks: Supports up to 100 airMAX clients per sector
Intelligent QoS: Prioritizes voice and video traffic
Interference Reduction: High selectivity and cross-pol isolation improve performance in noisy RF environments
Carrier-Grade Reliability: Designed for long-distance, high-speed links
Technical Specifications
Antenna
| Parameter | Details |
| Frequency Range | 3.3 – 3.8 GHz |
| Gain | 17.3 – 18.2 dBi |
| Polarization | Dual-Linear |
| Cross-Pol Isolation | ≥ 28 dB |
| VSWR | 1.5:1 |
| Electrical Downtilt | 3° |
| Electrical Beamwidth | 6° |
Beamwidth
| Plane | Coverage |
| H-Pol (6 dB) | 118° |
| V-Pol (6 dB) | 121° |
Mechanical & Environmental
| Feature | Details |
| Dimensions | 735 × 144 × 78 mm (28.93 × 5.66 × 3.07") |
| Weight | 5.9 kg (13 lb) |
| Wind Survivability | 125 mph |
| Wind Loading | 21 lbf @ 100 mph |
| ETSI Spec | EN 302 326 DN2 |
