433MHz High Gain Antenna for Long Range Communication
Improve your wireless performance with our high gain 433 MHz antenna, designed for long-range, stable RF communication in demanding environments.
Ideal for IoT devices, wireless sensors, and industrial systems requiring reliable signal transmission
- Fiberglass Housing
- Omni-Directional Radiation Pattern
- Collinear
- 3dBi Peak Gain @ 433MHz
- Length: 600mm
- N Type Male Connector
- RoHS Compliant
- Specifications
- Introduction
- Datasheet
| Antenna Type | 433MHz High Gain Antenna |
| Frequency Range | 430-436 MHz |
| Peak Gain | 3 dBi |
| Impedance | 50 Ω |
| VSWR | <2.0 |
| Polarization | Vertical (Linear) |
| Radiation Pattern | Omni Directional |
| Connector Type | N Male or N Female |
| Radome Color | Grey (Defult) / Black / White |
| Application | IoT, RF Module |
This is a fiberglass omni-directional outdoor 433MHz High Gain Antenna is designed for appliations such as metering, industrial monitoring, environmental monitoring, remote asset monitoring and mesh network applications.
This antenna operates at 433MHz which is one of the most popular used license-free ISM band with 3dBi high gain. This omni-directional antenna radiates uniformly in the azimuth. The internal collinear characteristic provides one best performance and long-range 360 degree coverage, which can minimize the amount of nodes needed for a mesh networks.
Why Choose This 433MHz High Gain Antenna
Compared to standard antennas, it has some basic characteristics
Higher Gain: Better Range
Optimized Design: Improved Efficiency
Durable Materials: Longer Lifespan
- The Key Benefits
Extended Range: Achieve longer communication distance
Waterproof Design: Sutiable for outdoor use
High Signal Efficiency: Stable and reliable performance
Easy Integration: Compatible with standard RF modules
2. Performance & Range
This 433MHz high gain antenna for long range is optimized for:
Outdoor Communication: up to 1-3km (line-of-sight)
Indoor Applications: improved signal penetration
3. The Key Applications
It is widely used for:
IoT devices and smart sensors
Arduino and RF modules
Remote control systems
Industrial monitoring
4. Installation Tips
Install this 433MHz high gain antenna in open space
Keep away from metal surfaces asap
Mount vertically for best performance
5. Customization Options
As a manufacturer, we can offer custom cable length, connector types (N Male or N Female) and frequency tuning.
433MHz High Gain Antenna Features
This type of ISM 433MHz Outdoor Antenna is 600mm in length and 20mm in diameter with 3dBi high gain which can stand 50W input power.
Its UV resistant fiberglass enclosure enable this outdoor antenna to be used in all kinds of harsh environments, making itself more robust than traditional whip or rubber duck antennas. It can be directly applied for access points or telemetry units, like the pic showing, it also can be mounted on wall or device surface via the N-type Male connector or N-type Female connector.
433MHz High Gain Antenna Applications
Followings are the key applications by important technical considerations of 433MHz high gain antenna applications.
Industrial IoT & SCADA Systems : Remote Monitoring & Control and Telemetry
Smart Metering (AMR/AMI) :Automatic Meter Reading (AMR)
Long-Range Home & Building Automation: Gate & Garage Door Openers
Amateur Radio & Hobbyist Projects: Ham Radio & RC Models & Drones
Security & Alarm Systems: Wireless Sensor Links
Vehical & Asset Tracking: Fleet Management in Confined Areas and Asset Tracking in Yards
Related 433MHz Antennas
Range depends on the gain and the environment, typically up to several kilometers outdoor.
Yes, it is optimized for IoT and wireless communication systems on 433MHz ISM band.
Yes, we can support customized designs, cluding the custom pantone housing colors, laser marking and overmolded company logos.
The answer is positive, usually we deal with it as 3dBi high gain at 600mm in length, also, we can deal with it at 6dBi high gain at 1200mm in length.
Not necessarily. A higher dBi antenna gain rating does not generate extra RF energy; it flattens and compresses the vertical beam into a tighter horizontal disk.
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- Higher Gain (e.g., 6–12 dBi): Ideal for flat terrain and fixed point-to-point links over vast distances.
- Moderate Gain (e.g., 3–5 dBi): Ideal for rolling terrain, marine setups, or mesh IoT gateways where broad vertical coverage is required.
To determine the ideal gain profile for your specific project, explore our guide on how to choose the best 433MHz antenna for your device.
No. RF antennas are cut and tuned specifically to match the physical wavelength of their designated frequency. Using a 433MHz antenna on 868MHz or 915MHz equipment causes severe 50 Ohm impedance matching issues and high VSWR. This reflects transmission power back into the transceiver, reducing signal reach and potentially damaging the output power amplifier.
It depends on the antenna design:
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- No Ground Plane Needed: Collinear fiberglass dipoles and end-fed sleeve antennas feature integrated counterpoises and operate independently of a metal base.
- Ground Plane Required: Magnetic base whips and quarter-wave monopoles require a flat metal surface (at least 17 cm in radius) to reflect RF waves and achieve optimal radiation efficiency.
Yes, usually we deal with it by N Male or N Female connector, but also, we accept the customized RF connector and cable length.