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TX433-BLG Series 433MHz Fiberglass Antenna
TX433-BLG Series 433MHz Fiberglass Antenna
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SKU:tx433-blg-175
Product Overview
The TX433-BLG-120 is a professional-grade 433MHz / 470MHz omnidirectional fiberglass antenna engineered for ultimate long-range Sub-GHz deployments. Standing at an impressive 1200mm physical length, it accommodates an extended multi-dipole internal array to achieve a verified 8.0 dBi peak gain. Unlike shorter unity-gain antennas, this 1.2-meter structure compresses the vertical beamwidth, directing a massive amount of RF energy toward the horizon. Operating in the 410–510 MHz spectrum, its longer wavelength inherently bypasses dense concrete and foliage, making it a critical solution for environments suffering from weak signal penetration. Encased in a rugged 391g FRP (Fiberglass Reinforced Plastic) radome and featuring a heavy-duty N-J (N Male) connector, the TX433-BLG-120 provides maximum durability and low-loss energy transfer for outdoor base stations and industrial telemetry networks.
Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 410 – 510 MHz (433MHz & 470MHz) |
| Peak Gain | 8.0 dBi |
| VSWR | ≤ 1.5 |
| Connector Type | N-J (N Male) |
| Radome Material | FRP (Fiberglass Reinforced Plastic) |
| Physical Length | ~ 1200 mm |
| Weight | 391g ± 2g |
| Impedance | 50 Ω |
Updated: April 2026
Product Details
Solving Long-Distance Instability with 1200mm Arrays
Standard 433MHz whip antennas often suffer from severe signal scattering, causing connection drops over long distances. The TX433-BLG-120 leverages its 1200mm physical length to house a highly stacked oscillator array. This design physically forces the RF energy into a tight, flattened horizontal plane, pushing the gain to an elite 8.0 dBi. This structural advantage directly resolves the pain point of unstable long-distance transmission, ensuring continuous data streams in sprawling industrial parks.
Conquering Weak Signal Penetration
High-frequency signals (like 2.4GHz) bounce off walls. The TX433-BLG-120 operates strictly in the 410-510MHz Sub-GHz spectrum. Its longer wavelength inherently possesses unmatched diffraction and penetration capabilities. When installed on base stations, it easily slices through thick concrete walls, dense forest canopies, and complex urban obstacles, effectively eliminating dead zones where traditional antennas fail.
Professional Test Report
Validated on a vector network analyzer across the 410–510 MHz wideband: VSWR ≤ 1.5 ensures extreme energy transfer efficiency. This low reflection rate guarantees that your expensive RF modules operate at peak thermal efficiency without burning out from reflected power during continuous long-range broadcasts.
Ideal Applications & Ebyte Module Synergy
Synergy with Ebyte E22 LoRa Modules
Pain Point Resolved: Long-Range Attenuation. When paired with Ebyte's SX1262-based E22 series LoRa modules, this 8dBi antenna maximizes the LoRa spread-spectrum advantage. Quantitative field tests show that upgrading from a 3dBi whip to the TX433-BLG-120 can boost the reliable transmission range of an E22 module by up to 45% in semi-urban environments, easily achieving reliable links beyond 10-15 kilometers.
Synergy with Ebyte E73/Sub-GHz Transceivers
Pain Point Resolved: Co-channel Interference. In factory settings crowded with 2.4GHz noise, utilizing Ebyte's Sub-GHz transceivers paired with this highly resonant 433MHz antenna completely bypasses standard Wi-Fi/Bluetooth interference. The 8.0 dBi focused beam ensures your data packets punch through the noise floor, ensuring 99.9% packet delivery success rates in smart manufacturing setups.
Deep-Penetration Smart Metering
Perfect for municipal LoRaWAN gateways reading water/gas meters buried in underground concrete basements. The 433MHz wavelength diffracts around infrastructure rather than reflecting off it.
Heavy Industrial Telemetry
Its 391g heavy-duty FRP radome and N-Male connector are immune to factory dust, oil, and outdoor typhoons, making it the ultimate node antenna for oil fields and automated mining operations.
Resources
📄 Download Official Datasheet (PDF)Frequently Asked Questions
Q: Can I connect the N-J (N Male) interface of the TX433-BLG-120 directly to the SMA ports on Ebyte E22 or E73 modules?
A: No, a direct physical connection is not possible. Ebyte's E22 and E73 series modules typically utilize smaller IPEX or SMA interfaces designed for compact boards. Because the TX433-BLG-120 is a heavy-duty 391g outdoor antenna featuring an industrial N-J connector, you must use a high-quality "N Female to SMA Male" RF adapter cable to bridge the hardware.
Q: How does the 433MHz frequency combined with 8.0 dBi gain improve signal penetration compared to standard 2.4GHz antennas?
A: It is a combination of physics and beam shaping. The 433MHz frequency has a much longer wavelength than 2.4GHz, allowing the wave to naturally "bend" (diffract) around solid walls and trees rather than scattering. Simultaneously, the 8.0 dBi gain (achieved via the 1200mm tube length) forcefully focuses that penetrating wave horizontally. This combo ensures the signal punches through physical barriers without losing its forward momentum.
Q: Does the 1200mm length and 391g weight require special outdoor mounting considerations?
A: Yes. At 1.2 meters tall and weighing 391g, this antenna generates a moderate wind load. You must use sturdy, galvanized steel U-bolt brackets to secure the antenna mast to a pole or wall. Furthermore, to protect your RF system, always seal the N-J connector joint at the base with professional waterproof amalgamating tape to prevent rainwater ingress from ruining the VSWR performance.