Find me an URL for original SETI Horn of Plenty dimensions

Following is result of asking ChatGPT the above question 27/1/2026!!!!

Here’s a source that actually describes the original SETI Horn of Plenty antenna design and its dimensions:

🔗 SETI League article – “SETI Horn of Plenty: an Argus Antenna Alternative”
https://www.setileague.org/articles/horn.htm

This paper by H. Paul Shuch (SETI League) explains the concept and gives the design basis:

• It’s a scaled version of the Ewen 1951 horn antenna used to detect the 1420 MHz hydrogen line.
• The chosen dimensions for the Horn of Plenty are about 4 ft (≈122 cm) in length and 3 ft (≈91 cm) in width (selected for material size and practicality).

If you want actual measured plans in a downloadable format (PDF with build dimensions) rather than just a descriptive article, this amateur radio astronomy site includes a downloadable design file with specific measurements for a hydrogen-line horn antenna similar in scope (often inspired by Horn of Plenty):

🔗 https://www.astronomy.me.uk/wp-content/uploads/2025/10/H-Line_Pyramidal_Horn_1p2x0p9m_Plans_161025.pdf

This plan gives exact dimensions for a 1.2 m × 0.9 m pyramid horn, including throat size and flare angles.