At an altitude of about 37,000 feet (11.3 km), the environment contains much more secondary cosmic radiation than at ground level, but it’s important to distinguish between beta particles and…
Airline crew are exposed primarily to cosmic radiation rather than radiation from the aircraft itself. At cruising altitude, the atmosphere provides much less shielding than it does at ground level.…
Here are the actual chipsets inside both devices, stripped down to the essentials: 📡 RTL-SDR Blog V4 Uses: 👉 So the V4 is basically: R828D + RTL2832U This combination is…
This involves looking to detect the 21-cm (1.42 GHz) neutral atomic hydrogen (HI) line. Mapping extragalactic hydrogen with a small backyard dish is incredibly challenging, but is possoble. It was…
From Jason Burnfield. These references support Jason’s presentation on the Hydrogen Line meeting on 6/7/2026 found on the British Astronomical Association YouTube channel.
“Virgo” in radio astronomy most commonly refers to a software package for running and analysing small radio telescope data using SDRs (software-defined radios)—not a single instrument or observatory. It is…
Here are the actual chipsets inside both devices, stripped down to the essentials: 📡 RTL-SDR Blog V4 Uses: 👉 So the V4 is basically: R828D + RTL2832U This combination is…
It depends strongly on frequency (coax loss is frequency-dependent), but assuming you mean something in the VHF–UHF / radio astronomy range (e.g. ~1.4 GHz): To get ~6 dB over 25…
An FTP cable usually stands for Foiled Twisted Pair Ethernet cable. It is similar to ordinary Ethernet cable, but it has an additional foil shield wrapped around all four twisted…
My UKRAA PicoMuon detector stopped saving CSV data files on to the 64GB SD card plugged into it. I realised the SD needed to be re-formatted. The PicoMuon requires the…
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