23–26 Sept 2025
Festival Tower
Australia/Adelaide timezone

Capture the Signal

What is Capture The Signal (CTS)?

A challenge consisting of a series of riddles about digital signals, modulations and other systems to analyze with different difficulties. A CTS is one of the best possibilities to learn a lot in a short time. To be suitable for beginners and more experienced people there is an introductory part about the most important concepts of digital signal processing, GNU Radio and Software Defined Radio (SDR). The focus is on trying out things yourself than downloading a tool that does everything for you.

So simply register an account for yourself and begin (starts at 10:30 AM on Tuesday)!

https://sdrcts.tildepipe.org

Why?

To encourage you to learn interesting things about GNU Radio, digital signal processing and Software Defined Radio.

When?

During Australian GNU Radio Days 2025 from 10:30 September 23 until 15:30 on Thursday September 25. You can join from anywhere, you do not need to be at the event and you don't need a ticket!

Thanks!

The challenges and setup of this CTS have been contributed by reald. A huge thanks to them for making it available for the event. Their main request is that no one publish the solutions or hints about the challenges so future participants can enjoy the same