GZS is the station that doesn't exist. This is everything that does.
Right now, somewhere, a voice is crossing an ocean on shortwave. A pilot is talking down a runway. A spy station is reading numbers to nobody. You can listen to all of it from this page, free, on radios that live all over the world.
Radio, minus the radio.
For a hundred years, hearing a distant signal meant owning the hardware: a physical radio, real knobs, real filters, and an antenna big enough to matter. A Software-Defined Radio throws all of that out. It digitizes the raw radio signal the second it comes off the antenna, then does the tuning and the filtering in software. The radio becomes math.
A WebSDR goes one step further. Radio people all over the world hang their gear and their big antennas on the internet and leave the door open. You tune their radio from your couch. No hardware, no license, no cost. Hundreds of people can listen to the same receiver at once, each on a different frequency.
Open the map. Pick a radio. Tune it.
This is a live map of receivers around the world. Click a marker to open one, choose a band, and listen. If the board comes up blank, that's the site refusing to load inside another page, which a lot of them do. Launch it full-screen instead.
A live map of receivers you can open and tune in the browser. Click a marker, pick a band, listen.
Where the signals live.
The high-frequency dial runs roughly 1.8 to 30 MHz, and it's stacked with traffic. Below it sits the AM broadcast band you already know. Here's the whole stretch, so you know where to point a receiver.
The big three.
By what you want to hear.
Shortwave broadcasters
International stations beaming across oceans on the AM bands. Voices from the other side of the planet, bouncing off the sky to reach you.
Open a wide-band receiver ↗ Tune the 49m, 41m, 31m, 25m, 19m broadcast bands. Pick a receiver by region ↗ Map view, choose one near the broadcaster.Ham radio
Amateur operators working the world with their own gear: SSB voice, CW (Morse code still ticking along), and digital modes. Real people, real contacts, live.
Tune the ham bands ↗ 20m, 40m, 80m carry the most voice traffic. Pick a receiver and listen in. Browse every WebSDR live ↗ Day bands and night bands open at different hours. Pick one that's on air and see what's moving.Aviation & air traffic control
Pilots and controllers, tower and approach, the whole choreography of the sky read out loud. The most addictive listening on this page.
LiveATC.net ↗ The canonical home for ATC. Free, no account, hundreds of airports. Top 50 ATC feeds ↗ Busiest towers in the world, ranked. Start at a big hub.Maritime & weather
Ships, coast stations, weather fax painting maps out of beeps, and NAVTEX clattering navigation warnings to anyone listening. The sea has its own radio.
Find an HF marine receiver ↗ Look for marine and WEFAX (weather fax) frequencies near coastlines. Browse all receivers ↗ Coastal KiwiSDRs hear the most ship traffic.Numbers stations
The strangest thing on shortwave: a voice reading endless strings of digits to nobody, for decades. Cold-War spycraft that never fully went dark. Catch one and the hair on your neck does the rest.
Priyom.org station schedule ↗ When and where to catch them. Then open a receiver on that frequency. Open a shortwave receiver ↗ Tune the listed frequency at the listed time and wait.Time & standard signals
Atomic clocks ticking the official time into the air on exact frequencies, around the clock, forever. The metronome of the planet.
Tune WWV / CHU ↗ Try 5, 10, or 15 MHz for the time tick and voice announcement.Every receiver here is somebody's hardware and antenna, put online for free. They go up and down. If one's dead, try another or open a map and pick one near the signal you're chasing. Be decent: it's a stranger's bandwidth.