gnuradio

gnuradio/gnuradio

GNU Radio – the Free and Open Software Radio Ecosystem

18 good first / help-wanted issues · C++ · last activity Aug 21, 2026

6.2K stars 2.1K forks 6.2K watchers C++ GNU General Public License v3.0
c-plus-plus cybersecurity dsp flowgraph gnu gnuradio python radio sdr wireless
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18 Open Issues Need Help Last updated: Aug 21, 2026

Open Issues Need Help

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tcp_source has no QA 23 days ago
good first issue Python QA network
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Detect when modtool needs pygccxml and doesn't have it 4 months ago
Feature Request good first issue modtool
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Add enable_realtime_scheduling unit test 4 months ago
Bug Low good first issue QA
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
GRC: Allow for required parameters 6 months ago
Feature Request GRC good first issue codegen
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
blocks: vector_sink reserve (min) data length in constructor 6 months ago
Feature Request good first issue
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
FileSink should have an option to fail if file already exists 6 months ago
Feature Request good first issue enhancement
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
RFE: Qt Digital Number Control - make max and min frequencies runtime changeable 6 months ago
Feature Request QTGUI good first issue
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Number Sink does not work for int32 6 months ago
Bug QTGUI help wanted good first issue enhancement
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Expose the audio buffer size as options to the audio sink/source blocks 6 months ago
Feature Request GRC good first issue enhancement audio UX
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Current git compilation fails in gr-trellis.xml:6 7 months ago
Bug Documentation good first issue quickly fixable
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Correlation Estimator for float streams 8 months ago
Feature Request digital good first issue
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
GRC: Blocks overlap on HiDPI screens 8 months ago
Low GRC help wanted good first issue investigation GRC-Qt
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Deprecate packet synchronizers 9 months ago
Low digital good first issue deprecation quickly fixable
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Notify user when GRC file was last opened in older GNU Radio 9 months ago
Feature Request GRC help wanted Python
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Add a link to the guided tutorials to GRC's Help menu 9 months ago
Feature Request Documentation GRC good first issue Python Backport-3.8 Backport-3.9 Backport-3.10
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
qt grc: Options block can have ID hidden (never appropriate) 11 months ago
help wanted GRC-Qt GRC-Qt/GTK Feature Parity
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
fir_filter_blk: add tag handler to set taps 11 months ago
Feature Request hacktoberfest good first issue filter
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless
Qt GUI Vector Sink should support uint8, int16, int32, and Complex about 1 year ago
Feature Request QTGUI good first issue
gnuradio/gnuradio
6.2K

GNU Radio – the Free and Open Software Radio Ecosystem

C++
#c-plus-plus#cybersecurity#dsp#flowgraph#gnu#gnuradio#python#radio#sdr#wireless