GQ Electronics EMF-360V2 - Interpreting RF Spectrum Analyzer; RF Spectrum Analyzer Screen Elements

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(EMF-380 V2, EMF-390 Models) (EMF-360+ V2 Model)
RF Spectrum Analyzer (Except EMF-360)
From above screens:
Total power: 458 picowatte
Peak: -57dBm @ 2.402GHz
Minimum: 0.398 picowatte
Frequency checked scope: 2.400GHz – 2.504GHz
Channel step: 405 KHz
Channel bandwidth: 812KHz
At user cursor location: -90dBm @ 2.459GHz
Lowest power detected @ -93dBm