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Why the signal strength of the NB module is relatively poor?

Last Updated on：2023-01-30 09:47:15

The MCU can query the signal strength of the NB module through commands. If the signal strength is less than 10, it means that the signal strength is very poor, and there is a possibility that it cannot connect to the operator's base station.
Please check whether the SIM card is activated, whether NB business is handled, whether exceeds the package limitation, and whether the installation is proper.
The signal strength is related to the antenna performance of the equipment end covered by the base station. If the signal strength is poor, please make sure the antenna is well matched and the contact is proper.