Sep 5 – 9, 2023
ASU Memorial Union (2nd Floor)
US/Arizona timezone
GRCon23 will be running from Tuesday Sept 5 to Saturday Sept 9 this year.

Low-Cost Educational Kit for 21-cm Observations of the Milky Way

Sep 5, 2023, 2:15 PM
Arizona (MU 221) (ASU Memorial Union 2nd Floor)

Arizona (MU 221)

ASU Memorial Union 2nd Floor

Talk GNU Radio in Education Main Track


Lindsay Berkhout (ASU)Ms Lindsay Berkhout (Arizona State University)


The Completely Hackable Amateur Radio Telescope (CHART) is a radio astronomy platform aimed at high school students and teachers. The project offers online tutorials and code for building an inexpensive instrument to detect the 21-cm signal from neutral hydrogen in the Milky Way. Complete parts for the project can be acquired for under $300. The base platform is intended to work out of the box for this experiment, but is easily reconfigurable for other parts and applications. The spectrometer uses the RTL-SDR module and a custom GNURadio application which can be operated via a python-based GUI. Users analyze data in jupyter notebooks. Template code is available for flagging, calibration, plotting, and similar functions.

Talk Length 15 Minutes
Link to Open Source Code

Primary author

Ms Lindsay Berkhout (Arizona State University)


Prof. Adam Beardsley (Winona State University) Prof. Daniel Jacobs (Arizona State University)

Presentation materials