5 stories tagged sdr, newest first.
172 points by liotier | 115 comments
Missileer.watch is a site that streams 11175 kHz HFGCS shortwave audio, transcribes US nuclear forces Emergency Action Messages, and explains the network and launch capsules.
397 points by djfergus | 107 comments
GitHub repository w1700k-sdr with firmware and host tools that turn a WiFi 7 router into a 320 Msps software defined radio receiver.
![Screenshot of youtube.com: I built a light that reacts to radio waves [video]](https://hn.urlbox.com/shots/renders/2026/1/23/27993923-5a01-4c5a-bf85-b4cb88ce46f2.jpg)
432 points by codetheweb | 97 comments
YouTube video by Rootkid showing a self-built light installation that visualizes nearby radio wave activity.
909 points by mihau | 151 comments
A blog post by blinry listing fifty things they explored and did with a software defined radio across the electromagnetic spectrum.
437 points by lq9AJ8yrfs | 256 comments
RTL-SDR.com post about custom dark web Flipper Zero firmware, tested on YouTube, that breaks the rolling code security used in most modern vehicle key fobs.