From Alex Pettit 2-3/12/2025: Its related to the Feed Beam Pattern and the Shape ( f/D Depth ) of the

You’re thinking of a geodesic parabolic dish — a structure made from straight struts arranged in a triangular (geodesic) pattern that

Great question — this is a very common confusion when first applying the Nyquist theorem to radio astronomy. You do

Here is the Nyquist explanation rewritten using pure ASCII diagrams (no Unicode). Nyquist Theorem (ASCII Version) The Nyquist theorem says: This

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

REM Identify data folder structure. REM The folder structure should be LRO folder with sub-folder called data. Save .txt data

In most practical radio-astronomy and communication setups, a full-wavelength antenna is not inherently “better” than a half-wavelength one—they simply behave

Short answer: the SAWbird H1’s gain is essentially fixed by its RF amplifier bias network and SAW filter — within