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 Post navigation Testing antenna aimed at cold sky vs hot ground – can this be conducted in daytime or must it be done at night? Designing my SETI H-Line Horn of Plenty 31/12/2025