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This spiral-shaped 433MHz antenna comes with its own uFL connector. It is a flexible wire antenna, intended for applications where a normal antenna is not practical, such as radio modules mounted inside an enclosure, remote control toys, cars, planes and similar.
Because it is flexible, it can be tucked into tight spaces, and because it uses a uFL (I-PEX) connector it plugs straight onto many small radio modules. The gain is 3dBi or greater with a 50 ohm impedance, so it matches standard RF equipment.
It suits communication, wireless and remote control applications on the 433MHz band.
Spiral shape: a compact way to fit a 433MHz antenna into little space.
Flexible wire: bends to fit where a rigid antenna will not.
3dBi or more of gain: a useful boost for its size.
50 ohm impedance: matches standard RF modules.
uFL connector: the small I-PEX plug used on compact radio boards.
Wide temperature range: the listing states operation from -40 C to 85 C.
Many small radio modules and telemetry boards have a tiny uFL socket instead of a full-size antenna connector. A flexible spiral antenna connects to that socket and can be routed inside the enclosure or stuck to a surface.
At 433MHz, a full-size antenna would be long, so a coiled design keeps the size manageable. That makes this type of antenna popular for compact remote-control and telemetry projects.
Radio modules mounted inside an enclosure
Remote-control toys and models
Cars and planes with 433MHz modules
Telemetry and wireless sensor projects
Replacing a missing or broken antenna on a uFL radio board
The antenna has a uFL (I-PEX) connector, a total length of 150mm, an antenna length of 26mm and a diameter of 4.2mm. Check that your radio module has a uFL socket and operates at 433MHz.
Route the wire away from metal and keep the connector seated; uFL connectors are small and should be handled gently.
Frequency: 433MHz
Connector: uFL (I-PEX)
Signal gain: 3dBi
Impedance: 50 ohm
Antenna length: 26mm
Diameter: 4.2mm
Total length: 150mm
1 x 433MHz antenna with uFL connector
Makers and builders who need a small, flexible 433MHz antenna for a radio module that has a uFL connector.
433MHz.
uFL, also called I-PEX.
The total length is 150mm.
3dBi or greater.
Inside enclosures, remote control toys, cars, planes and similar places where a normal antenna is not practical.
50 ohm.
| Brand | Generic |
|---|---|
| Antenna Type | Spiral (flexible wire) |
| Antenna Type | Spiral (flexible wire) |
| Connector | uFL (I-PEX) |
| Frequency | 433MHz |
| Gain | 3dBi |
| Impedance | 50 ohm |
| Selling unit | PCS |
