2025
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To install Tkinter on Linux Ubuntu
To install Tkinter on Ubuntu, open a terminal and run the following commands: This will install the Tkinter library, allowing you to create interactive GUI applications with Python. pythonguis.com realpython.com…
Installing & Testing USB Relay on Linux Ubuntu
Prerequisites Before testing the USB relay, ensure you have the following installed: Installation Steps bash Copy Code sudo apt-get update sudo apt-get install git python3 libhidapi-dev libhidapi-hidraw0 python3-pip bash Copy…
Parabolic dish focal ratios & spillover angles
From Alex Pettit 2-3/12/2025: Its related to the Feed Beam Pattern and the Shape ( f/D Depth ) of the dish. “All” f/D 0.35 dishes perform similarly regardless of diameter…
What is a geodesic parabolic dish?
You’re thinking of a geodesic parabolic dish — a structure made from straight struts arranged in a triangular (geodesic) pattern that automatically forms an accurate paraboloid when assembled. This is…
Applying the Nyquist theorem to radio astronomy
Great question — this is a very common confusion when first applying the Nyquist theorem to radio astronomy. You do not need a 2.8 GHz sample rate to observe the…
Nyquist theorem explanation
Here is the Nyquist explanation rewritten using pure ASCII diagrams (no Unicode). Nyquist Theorem (ASCII Version) The Nyquist theorem says: This minimum rate is the Nyquist rate. 1. Sine wave…
Tohtsu CX-520D coaxial relay product info from DX Shop 3 December 2025
https://www.astronomy.me.uk/wp-content/uploads/2025/12/Tohtsu-CX-520D-product-info-from-DX-Shop-031225-reduced.pdf
I have installed usbrelay softwate on Ubuntu for my 4 relay control board (which works on Windows). Running the command usbrelay detects device but can’t open it.
I have installed usbrelay softwate on Ubuntu for my 4 relay control board (which works on Windows). Running the command usbrelay detects device but can’t open it. If usbrelay sees…
Batch file used at LRO to process data Nov 2025
REM Identify data folder structure. REM The folder structure should be LRO folder with sub-folder called data. Save .txt data files in data and any .ezb and .npz data files…