Mathematical relationship between chords in music (for BAA GNU Radio Meeting homework)
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To change a C major chord into a D major chord, you need to multiply the frequency of each note by (2^{2/12}) (the twelfth root of two raised to the…
GNU Radio
GNC Flowcharts from Brett for USRP B210 SDR & Video Training links for GNC (GNU Radio Companion)
Hi Andy, https://www.astronomy.me.uk/wp-content/uploads/2025/11/B210_stats.grc_.txt https://www.astronomy.me.uk/wp-content/uploads/2025/11/baa_seminar_USRP_IF_RF.grc_.txt The BAA seminar flowgraph won’t work without some further modules (created by Marcus Leech). I can explain this to you. The B210 fg is what I…
How to avoid audio clashes GNU Radio with other devices using the audio stream on the computer running the software
I was using a screen recorder (Debut) to record a Microsoft Teams meeting tonight. However second half lost its sound, which occurred after I ran a GNU Radio Companion script…
How to change a normal Python‐level GNU Radio variable after the flowgraph has started
You can’t usually change a normal Python‐level GNU Radio variable after the flowgraph has started, but there are workarounds = you can make a variable externally adjustable while the script…
Function and use of “Subtract” block in GNU Radio
Good question — the Subtract block in GNU Radio Companion works on streamed numeric sample data, and the type of data it processes depends on what version of the block…
You can have two (or more) instances of the GNU Radio Companion QT GUI Vector Sink block in the same flowgraph
Yes — you can have two (or more) instances of the GNU Radio Companion QT GUI Vector Sink block in the same flowgraph, but there are a few practical considerations…
GNU Radio does have blocks that can subtract streamed data in real time
GNU Radio does have blocks that can subtract streamed data in real time, though there isn’t a single block literally called “Subtraction”. You can achieve subtraction cleanly in a few…
GNU Radio, the “Stream to Vector” block
In GNU Radio, the “Stream to Vector” block works with streamed sample data and groups it into fixed-length vectors. Here’s a clear breakdown of how it works: 📡 Input Type…
New revised SDRplay version 23/10/2025 of Ted’s original ezRA GNU Radio Data Collection Script from 20/10/2025
https://www.astronomy.me.uk/wp-content/uploads/2025/10/Ted-Clines-original-GNU-Radio-ezRA-GRC-script-201025ezColGR251018eArevised-AT-231025.zip https://www.astronomy.me.uk/wp-content/uploads/2025/10/Ted-Cline-GNU-Radio-SDRplay-AT-revisions-231025.zip
Protected: New Beta GNU Radio script to generate ezRA .txt data files that can be processed in ezRA
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