The information provided on this website is provided for reference purposes only. It is my personal development blog, and is not intended to act as an educational lr advisory tool…
Yes. There are several free options that will transcribe your speech into text as you dictate: Smartphones Windows PCs Linux For long interviews or lectures My recommendation Since you use…
Hydrogen-Line Detection vs Antenna Gain A measurement of 0.73 dB above background does not directly convert to dBi because they describe different things: For your measurement: 0.73 dB corresponds to…
Jason has calculated gain based on my plot below: I’m getting about 0.73 dB above background for that trace so pretty consistent with your previous results. Looks good! Jason Burnfield
At the 1420.405 MHz hydrogen line, the SETI Horn of Plenty is generally quoted at about +20 dBi gain (roughly +18 dBd). For comparison: Antenna Approx Gain (dBi) Approx Gain…
https://active-antenna.eu/amplifier-kit Yes — the is actually a very good choice for VLF loop work and SID detection, much better suited than the LA-200 type devices. The important point is that…
If by “LA-200” you mean the common audio induction-loop amplifier units (such as the Sarabec LA-200), then no — it is generally not a good choice as a front-end amplifier…
The commonly quoted lambda/4 criterion is not really a limit on the flare angle itself; it is a limit on the resulting path-length or surface-position error caused by a construction…
Yes. On Ubuntu you can disable automatic updates completely, or just stop the update notifications while still updating manually when you choose. Temporary: stop automatic updates Open a terminal and…
https://www.astronomy.me.uk/wp-content/uploads/2026/05/SETI_Horn_Flare_Angle_Calculations-1.docx Using the usual amateur SETI “Horn of Plenty” dimensions: the flare half-angle is: alpha = arctan((A – a)/(2L)) Substituting: alpha = arctan((0.91 – 0.165)/(2 x 1.22)) alpha = arctan(0.3053)…
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