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I am new to GNU Radio and was focusing on training using GretScott's website.

I am running Windows 10. I installed 3.7.13.5/v1.6 from the official site and noticed I was missing blocks. I decided to uninstall and install 3.8.0.0/v1.7

The instalation went well, though I also noticed a message in the command prompt after launch:

WARNING:gnuradio.grc.core.platform:Slow YAML loading (libyaml not available)
<<< Welcome to GNU Radio Companion 3.8.0.0 >>>

Block paths:
        C:\Program Files\GNURadio-3.8\share\gnuradio\grc\blocks

I didn't give it much thought and proceeded to rummage through Companion. I noticed the blocks that were missing initially were now available. However, I no longer have any WX blocks.

Is there a way I can download these blocks as .yml and place them in the block path?

I have tried to install PyYAML from github's link and then ran:

python setup.py install

I also ran:

pip install -U wxPython

No luck on either try, WX Blocks are still missing and I still get the (libyaml not available) message on command prompt.

James Hayek
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2 Answers2

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WX GUI is deprecated in GR 3.8 If you want to use 3.8, see https://wiki.gnuradio.org/index.php/InstallingGR Also take a look at https://wiki.gnuradio.org/index.php/Tutorials

Barry Duggan KV4FV
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  • Does QT have an FFT or Scope equivalent? – Brad Hein Aug 07 '21 at 19:44
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    For version 3.8 and after, look at Instrumentation -> QT -> QT GUI Time Sink for a Scope style plot (amplitude vs time) and QT GUI Frequency Sink for an FFT plot (amplitude vs frequency). A good reference is https://wiki.gnuradio.org/index.php/Category:Block_Docs – Barry Duggan KV4FV Aug 08 '21 at 20:12
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After the initial installation of GNU RC, you must then install the plugins for OSMOCOM and anything else you want.
I am using a Raspberry Pi.
In this, you go into the installation section and search for "GNURadio" and select everything with GNU Radio in the title.

Tamás Sengel
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Alastair
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