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Is there a flow graph for GNU Radio?
As with this GNU Radio version, this flowgraph used to work on Windows 8.1. Then after @MarcusMüller hinted that I may possibly have two GNU Radio installations [possibly conflicting with each other], and thoroughly checked that there are no GNU Radio installations anywhere.
Is there a bug with GNU Radio 3.7x?
So to sum up there is a graphics and performance bug with flowgraph size in versions 3.7x of gnuradio-companion with certain possible video settings on the Raspberry Pi 4 and probably 3. This may well be solved through the natural progression to GNU radio 3.9 and beyond.
Why is my rtl sdr not running flow graph?
If we don’t specify the device index number, GRC may not work. The earlier release of v3.7.13.4 outputs error messages for that case but v3.7.13.5 doesn’t. The windows build v3.7.13.5 may not be buggy but does not provide adequate messages.
Why does GNU Radio not show the blockpath?
What one can see though is that due to some reason (some setting or bug), this version 3.7.13.5 of GNU Radio includes the blockpath twice, as shown below.
What’s the best way to debug GNU Radio?
The easiest way is to connect a file sink to the block you suspect is making trouble, run the flow graph and then load the file with the tool of your choice. Read the guide to using Octave and Matlab with GNU Radio . Gnuradio has two loggers, a normal logger and a debug logger.
Which is the best way to learn GNU Radio?
GNU Radio Companion (GRC) is a graphical user interface that allows you to build GNU Radio flow graphs. It is an excellent way to learn the basics of GNU Radio. This is the first in a series of tutorials that will introduce you to the use of GRC. 1. Open a terminal window using: Applications > Accessories > Terminal.
Is there a problem with the flow graph?
Problem Observed: The problem is the flow graph appears to start, and stops immediately. No errors. The flow graph window appears, but all I see is the titlebar, and the close, minimize and maximize icons. The rest of the window never appears. The only output I see in the terminal window down in the bottom left corner is the following: