Re: [Discuss-gnuradio] QT waterfall sink manual intensity
I'm using just the waterfall sink. The spectrum is slightly oversampled so I see the decimation filter roll off to -170 dB and the edges, thus I'd like to set the intensity minimum at the passband noise floor which is up at -100 dB. The auto scale always catches -170 dB at the edges. I'll try editing the Python script directly to access the set_intensity_range(double min, double max) of the object, unless there is a way to do it in GRC. Thanks, Lou KD4HSO On Feb 25, 2014, at 10:28 AM, Tom Rondeau wrote: > On Mon, Feb 24, 2014 at 10:38 PM, Louis Brown wrote: >> Is there way to manually scale the intensity of the QT waterfall sink, in >> other words, set the dynamic range and reference level like the WX sink? >> >> Adjusting the time axis with the scroll wheel alters the intensity axis, but >> the actual color values don't change. >> >> Thanks, >> Lou >> KD4HSO > > > Just to make sure, are you using the QTGUI "sink" (the one with tabs > for the different types of plots) or the "waterfall sink" (with /just/ > the waterfall). If the former, there should be two bars for the upper > and lower intensities that will affect the colors. > > If using the waterfall plot directly, we haven't instrumented the > min/max from the gui directly (to avoid clutter). However, the object > does export the set_intensity_range(double min, double max) that you > can use to directly control these. > > Alternatively, with this plot, if you middle-click on the mouse, the > drop-down menu offers an Auto Scale feature that will adjust the > dynamic range based on the min/max values in the current plot. I've > found that to be the most useful way to control the intensity. > > Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] QT waterfall sink manual intensity
On Mon, Feb 24, 2014 at 10:38 PM, Louis Brown wrote: > Is there way to manually scale the intensity of the QT waterfall sink, in > other words, set the dynamic range and reference level like the WX sink? > > Adjusting the time axis with the scroll wheel alters the intensity axis, but > the actual color values don't change. > > Thanks, > Lou > KD4HSO Just to make sure, are you using the QTGUI "sink" (the one with tabs for the different types of plots) or the "waterfall sink" (with /just/ the waterfall). If the former, there should be two bars for the upper and lower intensities that will affect the colors. If using the waterfall plot directly, we haven't instrumented the min/max from the gui directly (to avoid clutter). However, the object does export the set_intensity_range(double min, double max) that you can use to directly control these. Alternatively, with this plot, if you middle-click on the mouse, the drop-down menu offers an Auto Scale feature that will adjust the dynamic range based on the min/max values in the current plot. I've found that to be the most useful way to control the intensity. Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] QT waterfall sink manual intensity
Is there way to manually scale the intensity of the QT waterfall sink, in other words, set the dynamic range and reference level like the WX sink? Adjusting the time axis with the scroll wheel alters the intensity axis, but the actual color values don't change. Thanks, Lou KD4HSO ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
