RTL-SDR Based Itty Bitty Radio Telescope That is a classic project. The RTL-SDR Based Itty Bitty Radio Telescope (IBT) was developed as an inexpensive demonstration radio telescope rather than a…
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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…
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