DA14580 Output Power Waveform Noise

HI Support,

I am currently using Experts Development Kit and had tried testing its output power using the default firmware to measure the maximum peak and average power emitted based on TRM-LE/CA/01C setup. Had tested the 3 daughter boards that came along with the Expert Devt Kit and had found out good responses for 2 out of 3 daughter boards tested with a smooth output power waveform . However, 1 out of 3 is showing two overlapping waveforms with the overlap starting at the center (50% point) of the original waveform. This scenario displays an intermittent output power on the Spectrum Analyzer. I would like to show some screenshots for your reference, is there a way for attaching these photos?

I am also seeing the same on some of our produced PCBs. Appreciate your feedback on this.
Thanks.