Results drift scan LRO-H2 two orthogonal monopoles for SARA RTOP 2/11/2025
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LRO-H2 Radio Telescope (150cm Solar Cooker Dish)
Radio observation in hydrogen line (1420MHz)
SDRplay RSPduo Software-Defined Radio (SDR)
Processing first light data from LRO-H2 using beta ezCol SDRplay Python script 2/11/2025
https://www.astronomy.me.uk/wp-content/uploads/2025/11/Beta-ezCol-SDRplay-Data-Analysis-First-Light-for-SARA-RTOP-021125.pptx https://www.astronomy.me.uk/wp-content/uploads/2025/11/LRO-H2_RSPduo_251102_00.zip https://www.astronomy.me.uk/wp-content/uploads/2025/11/Ted-Clines-new-ezCol-and-SDRplay-drivers-251101a.zip
What sample rate should I use in the GNU Radio SDRplay RSPDuo block for 1420MHz radio astronomy data collection?
SDR Play RSPduo – in gr-sdrplay3 module in GNU Radio it asks me to put in separate sample rate in options separate to center frequency. For 1420 MHz what sample…
References on OH maser spectra and variability from SARA RTOP meeting 2/11/2025
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
How are coaxial relays controlled from the computer to allow software like SDR Sharp to collect calibration data vs signal data?
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…
LRO-H2 Radio Telescope (150cm Solar Cooker Dish)
Radio observation in hydrogen line (1420MHz)
SDRplay RSPduo Software-Defined Radio (SDR)
Processing first light data from LRO-H2 using beta ezCol SDRplay Python script 1-2/11/2025
Shows some hydrogen – need to complete full 24 hours and re-analyse. Note altitude and azimuth may be incorrect in these plots.
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…
How physically big can a cavity RF filter be made? For example, is there an advantage to making a 50cm long cavity filter for 1420 MHz?
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,…
What are the advantages and disadvantages of adding more digits in an interdigital RF cavity filter?
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…