Hello Everyone, I am using HackRF One and running gr-scan spectrum monitoring software. I am also utilizing vector signal generator and spectrum analyzer.
Can anyone please help me understand the following measurement results from both spectrum analyzer (reference level: -20 dBm) and gr-scan? Spectrum Analyzer: -25 dBm VSG at 2437 MHz -> Peak Power: -47.26 dBm (Almost no loss since it is one foot cable directly connected to spectrum analyzer from vector signal generator) gr-scan: -25 dBm VSG at 2437 MHz -> Peak Power: -47.61 dB Spectrum Analyzer: -30 dBm VSG at 2437 MHz -> Peak Power: -52.85 dBm (Again, it is the same...Almost no loss) gr-scan: -30 dBm VSG at 2437 MHz -> Peak Power: -51.37 dB Spectrum Analyzer: -35 dBm VSG at 2437 MHz -> Peak Power: -58.22 dBm (Almost no loss) gr-scan: -35 dBm VSG at 2437 MHz -> Peak Power: -58.34 dB Spectrum Analyzer: -40 dBm VSG at 2437 MHz -> Peak Power: -63.21 dBm gr-scan: -40 dBm VSG at 2437 MHz -> Peak Power: -63.15 dB Spectrum Analyzer: -45 dBm VSG at 2437 MHz -> Peak Power: -67.63 dBm gr-scan: -45 dBm VSG at 2437 MHz -> Peak Power: -67.41 dB I guess there is no relationship between SDR dB values and spectrum analyzer dBm values but what I have noticed that SDR is linearly following VSG power increments. Thanks, -- View this message in context: http://gnuradio.4.n7.nabble.com/dBm-and-dB-Measurements-tp64413.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
