how to config the signal generator for rx sensitivity?

[Young]

Hi Nordic,

Now I am testing our custom board on nrf5832.   We are facing a problem. Even the arrived signal power is -30dBm, the per still can not be 0%.  The following is the method we used.

I enabled the CRC OK event interrupt (nrf_radio_int_enable(NRF_RADIO_INT_CRCOK_MASK);) and count the correctly received packets in the radio interrupt handler, and then calculate the per. The radio mode: NRF_RADIO_MODE_BLE_1MBIT.  My question is how to config the generator for our test? what is the modulation (FSK? GFSK?)  what is the deviation?   I followed the test guideline "RF Performance Test Guidelines.pdf".  I just got the info "See details of the RF generator
setup for specific nRF devices in the nRF performance test instructions for each nRF device." but cannot find the related document.  Anyone can provide some help.

[ketiljo]

If you're using NRF modulation, the deviation is 160 kHz at 1 Mbps and 320 kHz at 2 Mbps. A little less than BLE at 250 and 500 kHz.

This is true for all nRF devices. 

Modulation is always GFSK.