Is FCC certification needed for product acting as receiver but having transceiver chip inside? or there should specifically be a receiver only chip inside in order to bypass complicated certification process?
The document by TI "ISM-Band and Short Range Device Regulatory Compliance
Overview" here states that "Receivers do not need a certification, but the vendor has to state in a Declaration of Conformity (DOC) that each device complies with the spurious emission requirements of unintentional radiators according to section 15.209."
The frequency of operation for this device is 902–928 MHz ISM band.
Best Answer
You should have it tested as an "Unintentional radiator". Receivers can definitely radiate energy, and can violate the limits. The local oscillator in a superhet can end up radiating from the antenna or from the PCB, just for one example. If you have a processor or microcontroller, that's another potential source of radiated noise.
It's a relatively inexpensive test, and if you've done you work properly you will pass.