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 done at night i.e. does sunshine or even sun behind…
https://files.ad.thornett.net/astronet/LRO-H2_Monopole2_33_281225@1209.mp4
The idea here is to reduce variations in LNA performance as power spikes up and down in power supplies by using a linear power supply.
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 AM radio player (users can select from recorded IQ file…
To change a C major chord into a D major chord, you need to multiply the frequency of each note by (2^{2/12}) (the twelfth root of two raised to the…
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 experimentally reversed electromagnetic waves in time. The process, known as…
The following are suggestions from ChatGPT (effectiveness not verified, 27/12/2025): Easy Radio Astronomy (ezRA) expects a stable reference channel so it can compare amplitude and/or phase changes against the sky…
Andy, A directional coupler is a device which allows RF to pass along one path in either direction with very low insertion loss while tapping off a reference signal at…
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