NRF52832 received signal strength jumping

[liu]

hello, I used NRF52832 as a ble gatway.Now i have a trouble that the received signal strength is jumping about 2dBm when the chip loaded program.I test it with Spectrum Analyzer. But, after the program is erased, the signal strength becomes stable. Now i cann't find the reason.Need your help urgently. Thank you.

[liu]

hello, i uses a RF generator to give NRF52832 board a 2.4Ghz signal at the antenna location.