Jupiter Radio Astronomy
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Is there any advantage to using RF filters when detecting Jupiter radio emissions?
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…
What happens if I put two x RF DC-22MHz filters in parallel?
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…
I have a mini circuits DC-22MHz filter. Would it be possible to slightly adjust range up by 2MHz with extra components?
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…
Pictures of meteors detected by radio meteor scatter at LRO
Pictures 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
Mini-Circuits SLP-21.4+ Coaxial Low Pass Filter 50Ohm DC-22MHz Data Sheet
Download data sheet below: https://www.astronomy.me.uk/wp-content/uploads/2025/10/Mini-Circuits-SLP-21.4-Coaxial-Low-Pass-Filter-50Ohm-DC-22MHz-Data-Sheet-261025.pdf
Was the Orionid meteor shower a flop this year?
The Orionid meteor shower is described by the Royal Museums Greenwich, London, website as: Orionids 22 October 2 Oct-7 Nov 15 Fast with fine trains. Associated with Comet Halley (https://www.rmg.co.uk/stories/space-astronomy/meteor-shower-guide-2025…
Extreme difficulty detecting Jupiter or Saturn at 10 GHz.
From SARA meeting 19/10/2025: Eduard Mol: Just found Joachim Köppens planet observations at 10 GHz, I believe he used a 7.2 metre dish: http://sat-bodenstation-roenne.uni-kiel.de/. Jupiter was only 0.015 dB! Saturn…
Is it beneficial to increase the physical size or number of turns of wire on the cross of the antenna used in a VLF SID Monitoring system?
Generally, the bigger the better within practical limits. Consider its orientation (N-S or E-W), where it will be located, will it be moved, will the mount support the weight of…