V669 Cas is quite variable it seems… https://hsweb.hs.uni-hamburg.de/projects/nrt_monitoring/stockert.html eduard 19:32This is also a very good resource for OH maser spectra and variability: https://hsweb.hs.uni-hamburg.de/projects/nrt_monitoring/index.html

Copy of email sent to me by Ted Cline October 2025:        How are coaxial relays controlled from

Shows some hydrogen – need to complete full 24 hours and re-analyse. Note altitude and azimuth may be incorrect in

Yes — RF filters can significantly improve your ability to detect Jupiter’s radio emissions, depending on your setup and local RF

Short answer: you can make a cavity “as big as you like,” but past a sensible size you don’t gain

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

Short version: “Parallel” doesn’t help—and can make things worse. Here are the three ways people mean “parallel,” and what actually

Short answer: not really. Mini-Circuits “DC–22 MHz” parts are fixed, 50 Ω-matched, sealed networks (usually elliptic/Chebyshev LC). To move the