Radio bands

Every band represented in the database, from below 30 kHz to above 3 GHz.

• Very Low Frequency — 1 frequency, 1 station. Below 30 kHz. Signals that follow the curve of the earth and penetrate seawater, which is why navies transmit here. Very few transmitters,…
• Low Frequency — 36 frequencies, 61 stations. From 30 to 300 kHz. Time signal stations, non-directional aviation beacons and longwave broadcasting. Ground-wave propagation makes…
• Medium Wave — 355 frequencies, 1713 stations. From 300 kHz to 3 MHz, the AM broadcast band. Local by day and continental by night, when the D layer stops absorbing and signals begin to…
• 90 metre band — 17 frequencies, 34 stations. A tropical broadcast band, night-time only, with a shrinking number of active stations.
• 75 metre band — 14 frequencies, 52 stations. Shared between broadcasting and amateur radio depending on the region. Reliable over a few hundred kilometres after dark.
• 60 metre band — 47 frequencies, 196 stations. The third tropical band. Domestic broadcasters in Africa, Asia and South America, best heard around local dusk and dawn.
• 49 metre band — 62 frequencies, 641 stations. The workhorse of night-time shortwave: crowded, reliable, and the first band most listeners find. Open from late afternoon until after…
• 41 metre band — 51 frequencies, 414 stations. Shares its range with the 40 m amateur band. Strong in the evening over medium and long distances.
• 31 metre band — 104 frequencies, 810 stations. The most consistently useful shortwave broadcast band, open somewhere in the world at almost any hour.
• 25 metre band — 93 frequencies, 678 stations. A daytime and early evening band that reaches well beyond the horizon when the ionosphere is active.
• 22 metre band — 43 frequencies, 217 stations. A daylight band, dependable when solar activity is high and quiet when it is not.
• 19 metre band — 118 frequencies, 657 stations. A strong daytime band for long-distance broadcasting, at its best around the peak of the solar cycle.
• 16 metre band — 63 frequencies, 265 stations. Daylight long-haul. Open when the ionosphere is well ionised, and closed shortly after dark.
• 13 metre band — 23 frequencies, 44 stations. A high shortwave band that only opens when solar flux is high. When it does, signals travel very far on modest power.
• 11 metre band — 22 frequencies, 32 stations. The highest broadcast band, usable mainly at solar maximum. It sits next to the citizens band used for short-range voice traffic.
• High Frequency — 781 frequencies, 1573 stations. From 3 to 30 MHz: shortwave. Signals refract off the ionosphere and return to earth hundreds or thousands of kilometres away, which is what…
• Very High Frequency — 2332 frequencies, 30045 stations. From 30 to 300 MHz. FM broadcasting, air traffic control, marine channels and amateur repeaters. Mostly line of sight, with occasional…
• Ultra High Frequency — 1379 frequencies, 2920 stations. From 300 MHz to 3 GHz. Television, trunked radio, satellites and wireless data. Short wavelengths, compact antennas, and propagation…
• Super High Frequency — 107 frequencies, 190 stations. Above 3 GHz. Satellite downlinks, radar and microwave links, where rain and obstacles matter more than the ionosphere.

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