gnuradio
rms-open-letter
gnuradio | rms-open-letter | |
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22 | 18 | |
4,796 | - | |
0.7% | - | |
9.4 | - | |
7 days ago | - | |
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GNU General Public License v3.0 only | - |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
gnuradio
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Upsampling in Gnuradio is necessary?
In gr-dtv transmitter examples for Gnuradio, I see some times people use a resampler block before the RF hardware sink. Say our sampling rate is ~9.14Msps which satisfies the Nyquist criterion because our samples are complex numbers.
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Capturing FM using SDR
2.1. Thanks for that tip, I forgot that I was able to check the source code of the WBFM Receive block. As you have said, there are mostly the same. There are some differences between how values are picked. The WBFM Receive block would be a synonym of Quadrature demod => Fir Filter (decimation => Low pass filter) => FM Deemphasis. 2.3. My question there is why 10 and not 20 or 100. I understand that the idea is to reduce the sample rate asap, but what I don't understand is why those values were picked and how can I understand what would be the "correct" or "best" value. 2.4. I'm not fully understanding what you said. If I check the WB FM recieve source code the values that are supplied as the cutoff freq and transition width of the Low pass filter differ from the one of the example. The webfm would apply a sample rate / decimation / 2 - sample rate / decimation / 32 as a cutoff freq and a sample rate / decimation / 32 as a transition transition width. Calculating those values would end up in different that the ones supplied in this second example. Again, is there a rule of thumb to pick these values?.
- Hello everyone! I would like to install and run GNU Radio version 3.7.4 in order to follow along with The HackRF GNU Radio tutorial on greatscottgadgets.com/sdr/ but I can’t find prior releases to install. Can anyone help?
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Multi band gfsk demodulation with Nooelec RTL-SDR v5 SDR and gnu radio
Gaussian filter is used only on the tx side, so specifying bt in the receiver makes no sense. Take a look at gfsk mod/demod blocks implementation: https://github.com/gnuradio/gnuradio/blob/master/gr-digital/python/digital/gfsk.py
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What would you rewrite in Rust?
GNU Radio
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Is there a way to delay a signal in time-domain?
Here's the filter coefficients used for the GNU-Radio interpolator block to get you started. This is a 7th order interpolator (i.e., 8 FIR taps) with very good performance. Each "row" of the array sets the delay in steps of sample_time / 128.
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My grandpa is a huge HAM radio fan, so I showed him GNU Radio. Got this text the day he got back home.
From their README: “open-source software development toolkit that provides signal processing blocks to implement software radios.” https://github.com/gnuradio/gnuradio
- The future is now ... again
- GNU Radio
- GNU Radio – the Free and Open Software Radio Ecosystem
rms-open-letter
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Comment on the open letter to "remove RMS", based on the GNU Kind Communications Guidelines (about the open letter that was signed by the GNOME Foundation)
There were some issues made earlier, then issues were removed for that repo. One such issue was at https://github.com/rms-open-letter/rms-open-letter.github.io/issues/951 but it is no longer available. You can find a screenshot of it linked here https://github.com/rms-support-letter/rms-support-letter.github.io/issues/1338 -- the saved image is here: https://user-images.githubusercontent.com/73961250/112379336-f1f6a180-8cdf-11eb-8571-f6fd05784284.png
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Comment on the open letter to "remove RMS", based on the GNU Kind Communications Guidelines
Holding my nose while linking to this, but it's here https://rms-open-letter.github.io/ and the related Github git repository that they used to update it is here: https://github.com/rms-open-letter/rms-open-letter.github.io
- LineageOS 18.1 Released
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GNOME Foundation violated its own Code of Conduct by signing and managing the anti-RMS letter
The letter spreads fraudulent misinformation and GNOME Foundation members are managing the campaign. The signers should be ashamed for spreading it without seeing the source of these claims.
- An open letter to remove Richard M. Stallman from all leadership positions
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Dissecting Hate Speech - The RMS Open Letter
This is a thorough analysis of the RMS Open Letter, an opinion piece published by GNOME's "Strategic Initiatives Manager", which has reached almost 3000 signatures at the time of writing. If you have been misled to believe that RMS is a sexist, transphobe, misogynist or ableist, please keep reading.
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On GNOME and "RMS Open Letter"
GNOME Foundation. Looking through the pull requests I only find this one pull request by Regina Nkemchor Adejo (plus a duplicate of that pull request). That's only about her personally, not the whole foundation. Has the GNOME Foundation as a whole decided that they want to be on that list, and just sent the maintainer an email? I don't know, can't verify that. No word about this on the official GNOME Foundation website.
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A support letter for Richard Stallman
Issue text Internet Archive backup text
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A large number of people signed an open letter asking for a prominent figure to be removed over comments relating to misogyny, toxicity, and child endangerment. 4chan decided to defend him. This gem was in that pile.
I won't plug my own content here, but the open letter that many of us signed, and 4chan is using to "attack" back is here: https://github.com/rms-open-letter/rms-open-letter.github.io
What are some alternatives?
PothosSDR - Pothos SDR windows development environment
rms-support-letter
SDRPlusPlus - Cross-Platform SDR Software
rms-open-letter
Node RED - Low-code programming for event-driven applications
obs-studio - OBS Studio - Free and open source software for live streaming and screen recording
gnss-sdr - GNSS-SDR, an open-source software-defined GNSS receiver
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
srsRAN_4G - Open source SDR 4G software suite from Software Radio Systems (SRS) https://docs.srsran.com/projects/4g
CubicSDR - Cross-Platform Software-Defined Radio Application
multimon-ng
noaa-apt - NOAA APT weather satellite image decoder, for Linux, Windows, RPi 2+, OSX and Android+Termux