Can you convert the data to a table + 2 graphs (1st: SA level vs. input power, 2nd: SDR level vs. input power)? It will help you and others conclude the relationship between the behaviors
On Thu, Jun 29, 2017 at 11:16 PM GNUBeginner <muratc...@hotmail.com> wrote: > 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 >
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