SDR is an incredible tool for understanding radio

It's fascinating what you can see with even an inexpensive SDR! Thanks to Benjamin Vernoux for sending over a HydraSDR for us to test pre-launch! We were not paid for this video, but two HydraSDR units were provided for our testing. Links to all the different SDRs we mentioned (in order of price): RTL-SDR v3: https://amzn.to/4kf6eby RTL-SDR v4: https://amzn.to/44nKYui Nooelec v5: https://amzn.to/4lOZ6E3 HydraSDR: https://hydrasdr.com Great Scott Gadgets HackRF One: https://amzn.to/3Ijdw0l NI USRP-2953R: https://www.ni.com/en-us/support/mode... The software we used in this video was AirSpy SDR#: https://airspy.com/download/ Support me on Patreon:   / geerlingguy   Sponsor me on GitHub: https://github.com/sponsors/geerlingguy Merch: https://www.redshirtjeff.com 2nd Channel:    / @geerlingengineering   3rd Channel:    / @level2jeff   Contents: 00:00 - SDR is amazing 01:13 - Exploring the FM band 02:20 - Spurs and HD regrowth 04:11 - Antennas matter 04:51 - Analyzing signals and digital carriers 07:34 - Dealing with a weak signal and gain 10:56 - Exploring 900 MHz and Meshtastic 13:05 - SDR Rabbit Holes 13:43 - Ferrite chokes and cables 15:46 - Choosing an SDR 17:22 - The reason HydraSDR is 'Hydra' SDR 18:49 - Bonus - Band Scanner 2 21:30 - Specialized SDR for FM RF Engineers