measurement the LO leakage in RX mode

[kazuo KATO]

Dir sir. I read the white paper "Tuning the nRF24xx matching network" and I have a question. I would like to know the setting of the spectrum analyzer when I measure the LO leakage in RX mode. I don't know the frequency of the LO. Please let me know.

[Håkon Alseth]

Hi,

The RX_LO should be located on this frequency on nRF24-series and nRF51-series: Frxlo = (f+2) * 8/7

Example, RX channel is set to 40: frxlo = (2440 + 2) * 8/7 = 2790.85 MHz

Best regards Håkon