S2 Underground has a new video providing an introduction to signals intelligence, that is intelligence derived from electronic signals and systems, such as communications systems, radars, and weapons systems. If you’re interested in the topic, Brushbeater has a signals intelligence course, though the last one for 2022 was a week ago.
00:00 – Introduction and History
03:48 – Flight Tracking Apps
06:13 – ADS-B Receivers
07:39 – Software Defined Radios
11:01 – Scanners
15:43 – HackRF Devices
17:35 – Recap
17:58 – Your Own Communications
19:39 – Feasible and Realistic
25:25 – Have a Goal
26:24 – Shelter
29:30 – Automation
30:18 – Integration
31:27 – Closing Thoughts