Function and use of “Subtract” block in GNU Radio
Admin
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…
Software
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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How to change an username on Linux Ubuntu
To change a username in Ubuntu cleanly and safely, follow these steps from a different admin account (not the one you’re renaming) — or from a root shell. ⚠️ Important:…
Controlling Skywatcher mounts on Linux
Hi Andrew — good to see your interest in Linux astro-control setups (especially given your radio astronomy background!). For a Sky‑Watcher mount (SynScan-based) under Linux, here’s a breakdown of what…
Easy Radio Astronomy Software (ezRA)
LRO-H2 Radio Telescope (150cm Solar Cooker Dish)
SDRplay RSPduo Software-Defined Radio (SDR)
GNU Radio Companion GRC file used for test of alternative to ezCol with SDRplay RSPduo for data collection for later analysis by ezRA on LRO-H2 radio telescope 16/10/2025
I am just about to use the following file on the Solar Cooker Radio Telescope (LRO-H2) as part of a test of a system to collect data in ezCol .txt…
Draft process for getting URSP B210 Software-Defined Radio to work on Windows version of GNU Radio.
This is a draft document, and I cannot confirm it works – you also use it at your own risk! No indemnity provided. NB If it does not work for…