We are developing a commercial product, for a client. The chip we are using is sx1262. In our FCC prescanning, our custom pcb is failing by big margin, due to the large harmonics. To investigate this issue further we use the SX1262MB2xAS mbed shield (https://os.mbed.com/components/SX126xMB2xAS/). To our surprise, this is also failing for harmonics (2nd and 3rd).
What is the reason for such a failure? do we have any substitute for chip sx1262, which don’t differ much in functionality and have similar pin configuration.
Thanks
Ankit Bansal