Software Defined Radio
Software Defined Radio (SDR) lets you tune into a wide range of radio frequencies using software, rather than dedicated hardware for each band. I’m using an RTL-SDR USB dongle hooked up to an antenna on my apartment balcony here in Broomfield, Colorado. It’s all running through OpenWebRX Plus, which lets anyone connect to the receiver from a browser. You can listen in on everything from local FM radio and weather stations to amateur radio bands, aircraft transponders (ADS-B), and digital modes like FT8, APRS, and more. The interface is slick, and it even decodes a bunch of signals live right in your browser.
ADSB (Aircraft Transponders)
Track live aircraft positions using signals from their onboard transponders. Watch planes overhead in real time with altitude, speed, and flight data updates. While in ADSB mode click on “Map” in the top right corner to see live locations. This one is really cool because I live close to a local airport
NOAA Weather Radio
Continuous weather reports straight from the National Weather Service. Hear automated updates for your area, including forecasts, alerts, and emergency broadcasts.
Aircraft AM (VHF Airband)
Listen in on real-time pilot-to-tower communication from nearby airports. Hear approach, departure, and air traffic control chatter from commercial and private aircraft.
2 Meter Band (VHF Amateur Radio)
One of the most active ham radio bands—great for local conversations, repeater nets, and emergency communications. Often busy with hobbyist activity and public service use.
