rfsdrwireless
17 min readSignal Hunting with SDR: I Decoded a Mystery 433 MHz Signal (And You Can Too!) 🔍📡
Found a weird signal on 433 MHz and thought 'what the heck is that?' Turned out to be my neighbor's wireless thermometer! Here's how I use GNU Radio, Python, and signal analysis to identify unknown RF transmissions. Software meets radio waves!
Feb 11, 2026