ITU radio frequency band designations
| Band | Abbreviation | Frequency Range | Wavelength | Applications |
|---|---|---|---|---|
| Extremely Low | ELF | 3–30 Hz | 100,000–10,000 km | Submarine communication |
| Super Low | SLF | 30–300 Hz | 10,000–1,000 km | Submarine communication |
| Ultra Low | ULF | 300 Hz – 3 kHz | 1,000–100 km | Mine communication, heart monitors |
| Very Low | VLF | 3–30 kHz | 100–10 km | Navigation, time signals, submarine |
| Low Frequency | LF | 30–300 kHz | 10–1 km | AM longwave radio, RFID, navigation |
| Medium Frequency | MF | 300 kHz – 3 MHz | 1 km – 100 m | AM broadcast radio, maritime |
| High Frequency | HF | 3–30 MHz | 100–10 m | Shortwave radio, amateur radio, aviation |
| Very High | VHF | 30–300 MHz | 10–1 m | FM radio, TV broadcast, air traffic |
| Ultra High | UHF | 300 MHz – 3 GHz | 1 m – 10 cm | TV, mobile phones, WiFi, GPS, Bluetooth |
| Super High | SHF | 3–30 GHz | 10–1 cm | Satellite, radar, 5G, WiFi 5/6 |
| Extremely High | EHF | 30–300 GHz | 10–1 mm | 5G mmWave, radio astronomy, security |
| Tremendously High | THF | 300 GHz – 3 THz | 1–0.1 mm | Experimental, imaging, spectroscopy |