Astronomy observatory in Staffordshire, England.
Astronomy observatory in Staffordshire, England.
Adding more digits (fingers or resonators) in an interdigital RF cavity filter has several important advantages and disadvantages, depending on what you are optimizing for (selectivity, insertion
Read moreShort version: “Parallel” doesn’t help—and can make things worse. Here are the three ways people mean “parallel,” and what actually
Read moreShort answer: not really. Mini-Circuits “DC–22 MHz” parts are fixed, 50 Ω-matched, sealed networks (usually elliptic/Chebyshev LC). To move the
Read moreYou’ve got three good ways to run Linux under Windows 11, depending on how much integration or isolation you want. Here’s a
Read morehttps://www.astronomy.me.uk/wp-content/uploads/2025/10/Bio-photo-Dr-Thornett-IAS-2025-200125.docx https://www.astronomy.me.uk/wp-content/uploads/2025/10/IAS-2025-Abstract-200125@2030.docx https://www.astronomy.me.uk/wp-content/uploads/2025/10/IAS-2025-Intro-to-Radio-Astro-FINAL-011025@2100.pdf https://www.astronomy.me.uk/wp-content/uploads/2025/10/IAS-2025-Intro-to-Radio-Astro-FINAL-011025@2100.pptx
Read moreThere is no excerpt because this is a protected post.
Read morePictures can be accessed via download of ZIP archive below: https://www.astronomy.me.uk/wp-content/uploads/2025/11/Pictures-for-Astronomy-Now-011125.zip
Read moreFor 1420 MHz (the H I line at 1420.4058 MHz), the “best” cavity filter depends on where you place it
Read moreGood — that’s a nice setup for remotely switching antennas, receivers, or feed chains. Let’s outline how to get both
Read more