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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Experimental setup with photos of the used LoRa devices, and with a map of the areas selected for RSSI measurements. The operation frequency of the system was chosen between 902.3 to 903.7 MHz and the gain of the antennas was 3 dBi.