My holiday project was to make a cheap hydrogen line radio telescope from a wifi antenna and a Raspberry Pi : r/space
Hydrogen line - Wikipedia
Hydrogen Line Radio Astronomy
First Light Report for 21cm Hydrogen Line Telescope | www.starkids.org
Hydrogen Line – British Astronomical Association
Milky Way Introduction, Multiple Wavelengths, 21cm Line of Hydrogen - YouTube
Digital Radio Astronomy: Receiving Radio Noise
Hydrogen Line Radio Observations
Observing the 21cm Hydrogen Line (HI) radio emissions from the Milky Way with a DIY Radio Telescope - YouTube
Cheap and Easy Hydrogen Line Radio Astronomy with an RTL-SDR, WiFi Parabolic Grid Dish, LNA and SDRSharp
Hydrogen Line Radio Observations
Hydrogen Line Experiment
Hydrogen Line Radio Observations
Low Cost Hydrogen Line Telescope using the RTL-SDR
A Compact Radio Telescope for the 21 cm Neutral- Hydrogen Line Radioteleskop za 21 cm vodikovo črto
A COMPACT RADIO TELESCOPE FOR THE 21CM NEUTRAL-HYDROGEN LINE Tadeja Saje, Matjaž Vidmar Abstract Thanks to the many independent
PICTOR: An Open Source Low Cost Radio Telescope based on RTL-SDR
A Low-Noise SDR-Based Receiver for the 21 cm Neutral-Hydrogen Line | PhysicsOpenLab
A Low-Noise SDR-Based Receiver for the 21 cm Neutral-Hydrogen Line | PhysicsOpenLab
Hydrogen-line chasing
1420.4 MHz Hydrogen line: There it is! – Linux, Games, Programming and some random science stuff
With the 21 cm hydrogen line from Kootwijk to Dwingeloo – Dwingeloo Radio Telescope | CAMRAS
G4NNS - Amateur Radio Astronomy with the Hydrogen Line Observing Group
Probe The Galaxy On A Shoestring With This DIY Hydrogen-Line Telescope | Hackaday
