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From SETI League on building Horn of Plenty: https://www.astronomy.me.uk/wp-content/uploads/2026/01/10629-scaled.jpg https://www.astronomy.me.uk/wp-content/uploads/2026/01/Building-SETI-Horn-of-Plenty2003.docx SETI League Feedhorn Excel Spreadsheet Calculator: https://www.astronomy.me.uk/wp-content/uploads/2026/01/SETI-League-Feedhorn-Analysis-Excel-Calulator.xls Design for my

https://www.astronomy.me.uk/wp-content/uploads/2025/12/Calculating-Cantenna-Dimensions-for-H-Line-Meeting-050126-DRAFT-301225@2330.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/12/Calculating-Cantenna-Dimensions-for-H-Line-Meeting-050126-DRAFT-301225@2330.pptx

QUESTION:Testing antenna aimed at cold sky vs hot ground – can this be conducted in daytime or must it be

The idea here is to reduce variations in LNA performance as power spikes up and down in power supplies by

My GNU Radio Companion GRC file that plays multiple music chords: https://www.astronomy.me.uk/wp-content/uploads/2025/12/BAA-GNU-Radio-Meeting-Exercise-Chord-Selector-201225_GRC.zip Video showing the above GRC in action: My

To change a C major chord into a D major chord, you need to multiply the frequency of each note

Summary of research article (Moussa et al., 2023): The following was published on December 26, 2025 in https://dailygalaxy.com/2025/12/physicists-prove-time-mirrors-real-with-electromagnetic-flip/ Physicists have

The following are suggestions from ChatGPT (effectiveness not verified, 27/12/2025): Easy Radio Astronomy (ezRA) expects a stable reference channel so it