A Backyard 21 cm Hydrogen-Line Horn Radio Telescope

Two first-year students's attempt at building a pyramidal horn antenna to detect the Milky Way's neutral hydrogen.

The horn radio telescope

Discover

Live Dashboard

Live spectrum, system health, and the sky map as it fills in.

Read the Writeup

The full build story — hardware, software, results, and mistakes.

Download the Paper (PDF)

The condensed, technical-report version. Informal, not peer-reviewed.

Source on GitHub

Code, GNU Radio flows, and the parts list.

About the Project

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The team

Hristiyan Dimitrov

Hristiyan Dimitrov

1st-year Computer Science @ Technical University Eindhoven

Software pipeline, streaming dashboard, calibration code

Iliya Yordanov

Iliya Yordanov

1st-year Aerospace Engineering @ Warsaw University of Technology

Horn + waveguide construction, RF signal chain, mount