The Ebyte TX4G-BLG-15 and TX4G-BLG-40 series is an industrial-grade omnidirectional fiberglass outdoor antenna engineered for 4G/LTE cellular communications, delivering high gain (3dBi to 6.5dBi) with 50Ω impedance and ≤2.0 VSWR via a standard N-Male (N-J) connector, featuring IP67 waterproof, UV-proof, and wind-resistant fiberglass radome housing for wireless base stations, IoT gateways, industrial routers, and remote telemetry systems.
Key Features & Advantages
- High Gain & 360° Omnidirectional Coverage: Integrates precision multi-element stacked brass resonators to deliver uniform 360-degree horizontal radiation with peak gain of 3dBi (150mm model) and 6.5dBi (400mm model), maximizing cellular uplink/downlink range.
- Heavy-Duty Weatherproof Fiberglass (FRP) Radome: Constructed from reinforced fiberglass composite with high mechanical strength, UV-aging resistance, wind resistance, and IP67-rated hermetic sealing to withstand extreme outdoor rain, salt spray, and desert heat.
- Standard N-Male (N-J) Interface: Equipped with a heavy-duty, low-loss nickel-plated brass N-J connector (50 Ω characteristic impedance) supporting up to 50W RF power handling and direct outdoor base/cabinet mounting.
- Wide Operating Temperature Range (-40°C to +85°C): Engineered for industrial resilience across freezing alpine towers, offshore platforms, and hot industrial rooftops without signal detuning or physical degradation.
Core Specifications
| Parameter | Specification Details |
|---|---|
| Frequency Range | 4G / LTE (1700 ~ 2700 MHz / 1710 ~ 2700 MHz) |
| Antenna Gain | 3 dBi (TX4G-BLG-15) / 6.5 dBi (TX4G-BLG-40) |
| Voltage Standing Wave Ratio (VSWR) | ≤ 2.0 |
| Radiation Pattern & Polarization | Omnidirectional (360° Horizontal Beamwidth) / Vertical Polarization |
| Input Impedance | 50 Ω |
| Max Power Handling | 50 Watts |
| Connector Type | N-J (N-Type Male) |
| Antenna Dimensions | 150mm × Φ20mm (TX4G-BLG-15) / 400mm × Φ20mm (TX4G-BLG-40) |
| Radome Material | High-Strength Fiberglass (FRP Composite) |
| Operating Temperature | -40°C to +85°C |
Product Selection Guide
Notice for Selection: Please select between the compact 150mm (3dBi) model for cabinet/vehicle mounting and the 400mm (6.5dBi) high-gain model for long-distance base station masts.
| Model (SKU) | Frequency Band | Peak Gain | Antenna Length | Net Weight | Connector | Primary Application |
|---|---|---|---|---|---|---|
| TX4G-BLG-15 | 1700 ~ 2700 MHz | 3 dBi | 150 mm | 72g (±5g) | N-J (N Male) | Compact Outdoor Enclosures, Industrial Cabinets, Mobile Telemetry |
| TX4G-BLG-40 | 1710 ~ 2700 MHz | 6.5 dBi | 400 mm | 164g (±5g) | N-J (N Male) | High-Gain Base Stations, Wireless Gateways, Long-Range Solar/Field Sites |
Industrial Installation & Wiring
The TX4G-BLG series fiberglass antenna is designed for direct mounting or mast bracket installation. Follow these industrial deployment guidelines:
- RF Connector Mating: Thread the N-J (N-Male) connector onto a standard N-K (N-Female) bulkhead or low-loss 50 Ω coaxial cable (e.g., LMR-200, LMR-400, or RG-58). Hand-tighten firmly and seal with waterproof self-amalgamating silicone tape for outdoor weatherproof protection.
- Mounting Orientation: Mount the antenna vertically to ensure proper vertical polarization and 360-degree omnidirectional horizontal radiation. Avoid mounting horizontally or tilted.
- Mast & Cabinet Clearance: When mounting on metallic poles or towers, position the antenna above the pole top or ensure a minimum clearance of at least 30cm to 50cm from large metal masts to prevent pattern distortion.
- Lightning Protection: For rooftop or outdoor tower deployments, an in-line 50 Ω N-type gas tube surge arrestor grounded to the building earth ground is highly recommended.
Practical Application Scenarios
1. Outdoor 4G/LTE Industrial Cellular Gateways & Routers
Provides rugged, high-gain cellular uplink connectivity for outdoor industrial routers and edge computing gateways deployed in remote solar fields, water treatment plants, and smart city utility cabinets.
2. Municipal Smart Streetlighting & Environmental Monitoring
Mounted on top of municipal street light poles, air quality monitoring stations, and weather telemetry hubs, withstanding wind loads, sun exposure, and torrential rains while maintaining steady 4G LTE communications.
3. Oilfield, Pipeline & Mining Remote Telemetry
In harsh oil fields, mining extraction sites, and natural gas pipelines where vibration, dust, and corrosive vapors are present, the sealed fiberglass housing protects internal antenna elements from chemical degradation.
4. Wireless Base Stations & Agricultural IoT Repeater Towers
Installed on irrigation towers, greenhouse telemetry masts, and rural IoT repeater stations to collect data from distributed farm sensors and deliver wide-area cellular connectivity to central servers.
FAQ Section
1. What is the key advantage of a fiberglass (FRP) antenna over rubber duck or whip antennas?
Fiberglass antennas feature fully sealed, rigid composite radomes that protect multiple stacked internal resonators from UV embrittlement, water intrusion, wind stress, and mechanical impacts. This delivers superior gain stability and long-term durability in outdoor installations compared to flexible rubber antennas.
2. How do I choose between the 150mm (3dBi) and 400mm (6.5dBi) models?
Choose the 150mm (TX4G-BLG-15) model for compact installations on electrical cabinets, outdoor kiosks, or mobile telemetry vehicles where lower wind load and compact height are required. Choose the 400mm (TX4G-BLG-40) model for base station towers, rooftop masts, and fringe signal coverage areas where maximum 6.5dBi gain is essential.
3. Can this antenna connect to SMA devices (such as Ebyte DTUs and cellular modems)?
Yes. The antenna features a standard N-J (N-Male) connector. You can easily connect it to SMA-equipped devices using a standard low-loss N-Female to SMA-Male (N-K to SMA-J) coaxial adapter cable (such as RG58 or LMR195 jumper cables).
4. Does the antenna require lightning protection when installed outdoors?
For elevated rooftop or tower installations exposed to direct lightning risk, installing an in-line N-type RF lightning surge protector between the antenna and the feeder cable (with proper low-impedance earth grounding) is strongly recommended to protect connected transceiver equipment.
