Simple Spring Antenna - 433MHz

This simple spring antenna is ideal for 433MHz RFM and LoRa breakouts, bonnets, and Feathers. Constructed from copper-clad wire, it is easy to solder and compact in size, measuring approximately 38mm (1.5 inches) long.

The antenna features 2.5dBi of gain and 50Ω impedance, providing excellent compatibility with any 400~450MHz wireless receiver or transmitter.

• Compact dimensions: 38.5mm x 5.5mm x 4mm
• Made with copper-clad wire for easy soldering
• Gain: 2.5dBi
• Impedance: 50Ω
• Frequency: 433MHz

Suitable for a wide range of wireless 433MHz applications including IoT devices and remote sensors.