Results drift scan LRO-H2 two orthogonal monopoles for SARA RTOP 2/11/2025
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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 Wolfgang Herrmann 19:33And this one https://hsweb.hs.uni-hamburg.de/projects/nrt_monitoring/stockert.html
Copy of email sent to me by Ted Cline October 2025: How are coaxial relays controlled from the computer to allow software like SDR Sharp to collect calibration data vs…
Shows some hydrogen – need to complete full 24 hours and re-analyse. Note altitude and azimuth may be incorrect in these plots.
Yes — RF filters can significantly improve your ability to detect Jupiter’s radio emissions, depending on your setup and local RF environment. Here’s a breakdown of when and why they…
Short answer: you can make a cavity “as big as you like,” but past a sensible size you don’t gain performance—and you often make things worse (more spurious modes, weight,…
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 loss, bandwidth, physical…
Short version: “Parallel” doesn’t help—and can make things worse. Here are the three ways people mean “parallel,” and what actually happens: If your goal is to move the −3 dB…
Short answer: not really. Mini-Circuits “DC–22 MHz” parts are fixed, 50 Ω-matched, sealed networks (usually elliptic/Chebyshev LC). To move the cutoff up by ~2 MHz you’d need to reduce the…