K868-A16 433 RF MHz receiver

[Razvan]

I tried your configuration and the same result, does not work.
I also tried wifi instead of LAN and it still doesn't work.
On the back of the pcb is already a factory weld resistor. I measured it and it has 9.98 K.(like in your picture)

I also bought an oscilloscope. Can you tell me what and where to measure so we can see if this board is defective or not?