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LoRa & Sigfox

LoRa and Sigfox are the two most adopted LPWAN protocols across the globe. These two technologies operate on the “unlicensed” 900 MHz band across most of the Asia-Pacific region, which is a range from 915 to 928 MHz. Many countries in our region use one of two subsets of this band known as the AS1 and AS2 bands.

When compared to 3GPP standardised protocols like NB-IoT the two protocols offer a similar Maximum Coupling Loss (MCL) which ultimately defines the maximum theoretical range. However in countries like Australia the “unlicensed” 900 MHz band is still subjected to ACMA class licencing restrictions, which limits the transmitter EIRP to 1 Watt (30 dBm). This means that range of LoRa and Sigfox is in practice significantly shorter in distance than their 3GPP cousins.

This restriction means both base station and device antennas must be optimised to achieve the required range. Sigfox and LoRa antennas are tuned to provide maximum radiated efficiency and lowest VSWR within the 915 to 928 MHz frequency range. Powertec also carries a range of 868 MHz tuned antennas in support of projects in EU, Africa, and India.

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