Stop Saying the Spectrum Analyzer Is “Inaccurate”: You’re Probably Not Measuring the Same “Power”

I’ve seen this scene way too many times: Same OFDM signal. Two engineers standing at the same bench.One reads -10 dBm, the other insists it’s -16 dBm.Then the guessing starts—did the DUT change state? Is someone’s instrument “not accurate”? Did someo...