Electromagnetic Spectrum

1. Radio wave

Long wavelength, low frequency, low energy

SubHertz
subHz 0 < 3 Hz
> 100,000 km
Natural and man-made electromagnetic waves millihertz, microhertz, nanohertz from earth, ionosphere, sun, planets, etc

Extremely low frequency ELF 1 3–30 Hz
100,000 km – 10,000 km Communication with submarines

Super low frequency SLF 2 30–300 Hz
10,000 km – 1000 km Communication with submarines

Ultra low frequency ULF 3 300–3000 Hz
1000 km – 100 km Communication within mines

Very low frequency VLF 4 3–30 kHz
100 km – 10 km Submarine communication, avalanche beacons, wireless heart rate monitors, geophysics

Low frequency LF 5 30–300 kHz
10 km – 1 km Navigation, time signals, AM longwave broadcasting, RFID

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, RFID

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. Land Mobile and Maritime Mobile communications

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 Land Mobile, FRS and GMRS Radios

Super high frequency SHF 10 3–30 GHz
100 mm – 10 mm microwave devices, wireless LAN, most modern Radars

Extremely high frequency(EHF) 11 30–300 GHz
10 mm – 1 mm Radio astronomy, high-frequency microwave radio relay

Terahertz(THz) 300–30,000 GHz 1 mm – 90 um
Terahertz imaging - a potential replacement for x-rays in some medical applications, ultrafast molecular dynamics, Condensed-matter physics, Terahertz time-domain spectroscopy, terahertz computing/communications

Aircraft and shiping band
Amplitude modulation radio band
Short wave radio
Frequency modulation radio and television

2. Microwave
Microwaves are electromagnetic waves with wavelengths ranging from 1mm - 1m, or frequencies between 0.3 GHz and 300 GHz.

Television
Radar
Microwave ovan

3. Infrared