When an AM107AT reader appears to transmit partial data, where a part of the reading (temperature, humidity, or CO2) is missing, it is generally not defective. Most of the time, this is caused by inadequate coverage of the LoRaWAN network. To address this issue, it is recommended to change the location of the LoRaWAN gateway. If necessary, adding a LoRaWAN gateway may be required.
Moreover, the "Signal Strength" tool in the "Analysis" tab of the Assek IoT application is available to assist you in making better decisions to optimize network coverage. It provides three important pieces of information:
RSSI: The RSSI represents the signal strength. To be acceptable, it must be above -100 dBm.
SNR: The SNR represents the signal quality. It must be above -5 dB.
In connection with the configuration of an AM107AT, it sends 156 data points per day. A reader that sends fewer than 133 (85%) points is problematic. A reader that sends more than 160 points per day is also problematic (partial data). The signal is too weak to send complete data, so the reader fragments the data, abnormally increasing the number of points per day.
Example:
If the signal is strong to the east of the facility but weak to the west, you can move the gateway westward without creating a new problem. However, if the signal is weak on both sides, moving the gateway will be futile.
NOTE : The SNR and RSSI may be low without any data loss.
Fell free to contact technical support for more details or assistance.
Assek Technologies' support team
1-800-833-8044