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pavels / spektrum

rtl-sdr spectrum analyzer
BSD 3-Clause "New" or "Revised" License
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dB unit #14

Closed Leonix2007 closed 5 years ago

Leonix2007 commented 5 years ago

Hi there,

Great job for the contribution for this analyzer.

Related to the Y-axis which is in the dB unit. dB is a relative measure not an absolute value. Can you please verify if it is in dBm, dBi or maybe dBd?

Thanks, Leonix2007

pavels commented 5 years ago

It measures power - it displays values as it gets them from the dongle itself - no calibration

You can theoretically feed it 1mW flat white noise and use relative function to zero it to known reference - otherwise i think the reference is some arbitrary value.