The latest is a low-power, high quality,  rubber antenna that covers 868MHz/433MHz wireless RF antenna consists of SMA-J, 50 ohm Impedance, 3.0 dBi rubber antenna with the compact size of 200mm x 13mm. 

Connect LoRa™ 3.0 dBi High Gain Antenna with LoRa™ Expansion and communicate within the range of 5 km on 868MHz/433MHz bandwidth frequency. With adjustable wide angle(0-900), SMA-J Male interface, ABS material, assurance of high security, stability of data transmission and high quality coaxial wire build Hi-tech communication devices based on LoRa™ Protocol. 

LoRa™ is the abbreviation of Long-range that runs on a technique called spread-spectrum technique, procured from chirp spread spectrum (CSS) technology, that encodes information by using the wideband linear frequency modulated chirp pulses.

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