Hans Van Ingelgom <hvaningel...@gmail.com> writes: > If you just make any signal source and a QT GUI Sink, you'll see that the > frequency scale is wrong: a 32ksps signal will show a frequency range from > -8kHz to +8kHz (instead of -16...16kHz).
Ah, I encountered this issue on Mac and reported earlier. I didn't know if it's related to MacPorts or gnuradio next branch. Good to know that this issue is confirmed. > > Also, if you keep the default FFT size of 1024, the chooser widget shows > 256, but in reality the FFT size is correct at 1024. If you select 1024, > nothing changes. Going back to 256, the spectrum becomes coarser. > > BTW, I can zoom in/out in the FFT view using the scroll wheel, but I can't > move up/down. By default I just see the frequency peak of the synthesized > sine wave, not the noise floor. > > Greetings, > Hans. > If you just make any signal source and a QT GUI Sink, you'll see that > the frequency scale is wrong: a 32ksps signal will show a frequency > range from -8kHz to +8kHz (instead of -16...16kHz). > > Also, if you keep the default FFT size of 1024, the chooser widget > shows 256, but in reality the FFT size is correct at 1024. If you > select 1024, nothing changes. Going back to 256, the spectrum becomes > coarser. > > BTW, I can zoom in/out in the FFT view using the scroll wheel, but I > can't move up/down. By default I just see the frequency peak of the > synthesized sine wave, not the noise floor. > > Greetings, > Hans. > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- Albert Chun-Chieh Huang(黃俊傑) Blog: Random Notes, http://alberthuang314.blogspot.com/ _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
