Semtech has launched the SX1272, the first product in a new family of long-range Radio Frequency Integrated Circuits (RFICs) with a transmission range up to 15 kilometers. The SX1272 integrates Semtech’s new LoRa (long range) modulation technology to enable drastic range improvements over alternative modulation methods. Compared to a typical range of 1 to 2 kilometers with smart meter transceivers using FSK modulation, the new device can transmit over more than 15 km, operating under the same conditions and regulatory limits.
The new RFIC achieves receiver sensitivity up to -137 dBm using a low-cost crystal, compared to current state-of-the-art FSK devices with a sensitivity of -115 dBm with a comparable crystal or -125 dBm using an expensive temperature controlled crystal oscillator (TCXO). The in-band interference signal rejection is also 25 dB better than FSK devices. This makes the device especially effective in ISM band applications because it provides immunity from sub-GHz 4G/LTE signals.
For more detail: Smart Meter Transceiver IC has Range of 15 km
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Ibrar Ayyub
I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.
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