From 25Mhz to 2Ghz, a discone antenna with resonators is your best bet. Listen to broadcast FM, ham, aircraft, fire, police, weather, business, and even ADS-B aircraft telemetry. Pairing the right antenna with your software-defined-radio lets you hear everything with just a few mouse clicks.

Let's do some surprising SWR sweeps and pull in some weak stations, all with a single antenna and an affordable SDR radio.

Discone SDR Antenna:
https://buyantenna.com/index.php?rout...
https://www.amazon.com/dp/B0C9HZ4GZT
https://moonrakeronline.com/skyscan-d...

RTL-SDR:
https://www.amazon.com/dp/B0CD745394