Hi.
" i could not understand how you use this thing. And with what device."
I'm sorry, you're right, maybe I should have begin with that. It would be a little bit long to explain, so I will give you links to Wikipedia. I'm sorry but it's probably the best way to explain quickly and human-readable.
In fact, HAM (amateur radio) has not disappeared with satellites, PC and modern techs. The thing is that it has evolved with modern tools, and HAM is today more alive than never.
for gnu-radio:
https://en.wikipedia.org/wiki/GNU_Radio
the devices are called SDR(Software Defined Radio):
https://en.wikipedia.org/wiki/Software-defined_radio
particulary:
https://en.wikipedia.org/wiki/Software- ... io#RTL-SDR
This is a little bit complicated, and as I'm using radio devices since a long time and began with analogical ones, I cannot explain in simple terms.
Let's say that I'm able to build a VHF antenna with cooper tubes(or plastic ones and a cooper cable), or a HF antenna with a clothesline(and then receive a wheaterfax from hamburg in the middle of the Atlantic)
I had made a
sudo slapt-get -u
sudo slapt-get -i gnuradio
This install gnuradio 3.8.1.0, as well as a
But in this case, gnuradio-companion is not present.
For general usage, the companion is not really mandatory, as gnuradio will be called automatically by other programs like GQRX for example. But it's always nice to have it, specially for diagnoses purposes(eg finding what's wrong with a receiver, or signals).
the error message you mentionned
Code: Select all
<< Welcome to GNU Radio Companion 3.8.1.0 >>>
Block paths:
/usr/share/gnuradio/grc/blocks
Warning: restarting the docstring loader (crashed while loading 'qtgui_bercurve_sink')
Warning: restarting the docstring loader (crashed while loading 'qtgui_const_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_edit_box_msg')
Warning: restarting the docstring loader (crashed while loading 'qtgui_freq_sink_x')
Warning: restarting the docstring loader (crashed while loading 'qtgui_histogram_sink_x')
Warning: docstring loader crashed too often
The first results I've found is that it seems to be a segfault. gnuradio 3.8 is a big update, and some changes have appeared. It seems that it has to be build with Cmake 3.11 or more, and need that precedent version (3.7) would be totally removed to avoid problems.
I will investigate more, but during this time, maybe it would be better to stay with the functional version in the sailors repo.