Blogger [radioforeveryone] set out to look at 19 different RTL-SDR dongles for use in receiving ADS-B (that’s the system where airplanes determine their position and broadcast it). Not all of ...

That’s generally a job for an oscilloscope, but if you’re clever, an SDR dongle can make a dandy crystal checker too. The back story on [OM0ET]’s little hack is interesting, and one we hope ...