Range of radio signals (from low to high)
1) Extremely low frequency ELF 1 3–30 Hz 100,000 km – 10,000 km Communication with submarines
2) Super low frequency SLF 2 30–300 Hz 10,000 km – 1000 km Communication with submarines
3) Ultra low frequency ULF 3 300–3000 Hz 1000 km – 100 km Communication within mines
4) Very low frequency VLF 4 3–30 kHz 100 km – 10 km Submarine communication, avalanche beacons, wireless heart rate monitors, geophysics
5) Low frequency LF 5 30–300 kHz 10 km – 1 km Navigation, time signals, AM longwave broadcasting
6) Medium frequency MF 6 300–3000 kHz 1 km – 100 m AM (Medium-wave) broadcasts
High frequency HF 7 3–30 MHz 100 m – 10 m Shortwave broadcasts, amateur radio and over-the-horizon aviation communications
7) Very high frequency VHF 8 30–300 MHz 10 m – 1 m FM, television broadcasts and line-of-sight ground-to-aircraft and aircraft-to-aircraft communications
8) Ultra high frequency UHF 9 300–3000 MHz 1 m – 100 mm television broadcasts, microwave ovens, mobile phones, wireless LAN, Bluetooth, GPS and Two-Way Radios such as FRS and GMRS Radios
9) Super high frequency SHF 10 3–30 GHz 100 mm – 10 mm microwave devices, wireless LAN, most modern Radars
10) Extremely high frequency EHF 11 30–300 GHz 10 mm – 1 mm Radio astronomy, high-speed microwave radio relay
2) Super low frequency SLF 2 30–300 Hz 10,000 km – 1000 km Communication with submarines
3) Ultra low frequency ULF 3 300–3000 Hz 1000 km – 100 km Communication within mines
4) Very low frequency VLF 4 3–30 kHz 100 km – 10 km Submarine communication, avalanche beacons, wireless heart rate monitors, geophysics
5) Low frequency LF 5 30–300 kHz 10 km – 1 km Navigation, time signals, AM longwave broadcasting
6) Medium frequency MF 6 300–3000 kHz 1 km – 100 m AM (Medium-wave) broadcasts
High frequency HF 7 3–30 MHz 100 m – 10 m Shortwave broadcasts, amateur radio and over-the-horizon aviation communications
7) Very high frequency VHF 8 30–300 MHz 10 m – 1 m FM, television broadcasts and line-of-sight ground-to-aircraft and aircraft-to-aircraft communications
8) Ultra high frequency UHF 9 300–3000 MHz 1 m – 100 mm television broadcasts, microwave ovens, mobile phones, wireless LAN, Bluetooth, GPS and Two-Way Radios such as FRS and GMRS Radios
9) Super high frequency SHF 10 3–30 GHz 100 mm – 10 mm microwave devices, wireless LAN, most modern Radars
10) Extremely high frequency EHF 11 30–300 GHz 10 mm – 1 mm Radio astronomy, high-speed microwave radio relay