nRF24L01+ carrier wave

[zilvis]

Hi,

I can't find information what shape of spectrum I should expect from test mode (CONT_WAVE = 1, PLL_LOCK = 1). At the moment I get main spike with smaller symmetrical spikes -20dB and about +/1 kHz from main carrier.

I need somehow to remove these spikes and I am asking because if it is caused by design then nothing can be done to remove them (?), but I also have a suspicion that I am having counterfeit chip.

Thanks!

[ketiljo]

It could be noise on the power supply. Try using another power supply and see of the spurious level changes. 

If you have gotten the chip from one of our distributors, it will be genuine. Modules from ebay, Aliexpress etc, often have counterfeit chips.