Frequency Ranges

Frequency (in MHz) = 300 / Wavelength (in m)

and

Frequency (in GHz) = 30 / Wavelength (in cm)


(For greater accuracy use 299.79/Wavelength)



Band name

Abbrev

ITU band

Frequency

and

wavelength in air

Example uses

Tremendously low frequency

TLF


< 3 Hz

> 100,000 km

Natural and artificial electromagnetic noise

Extremely low frequency

ELF


3–30 Hz

100,000 km – 10,000 km

Communication with submarines

Super low frequency

SLF


30–300 Hz

10,000 km – 1000 km

Communication with submarines

Ultra low frequency

ULF


300–3000 Hz

1000 km – 100 km

Submarine communication, communication within mines

Very low frequency

VLF

4

3–30 kHz

100 km – 10 km

Navigation, time signals, submarine communication, wireless heart rate monitors, geophysics

Low frequency

LF

5

30–300 kHz

10 km – 1 km

Navigation, time signals, AM longwave broadcasting (Europe and parts of Asia), RFID, amateur radio

Medium frequency

MF

6

300–3000 kHz

1 km – 100 m

AM (medium-wave) broadcasts, amateur radio, avalanche beacons

High frequency

HF

7

3–30 MHz

100 m – 10 m

Shortwave broadcasts, citizens' band radio, amateur radio and over-the-horizon aviation communications, RFID, over-the-horizon radar, automatic link establishment (ALE) / near-vertical incidence skywave (NVIS) radio communications, marine and mobile radio telephony

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, amateur radio, weather radio

Ultra high frequency

UHF

9

300–3000 MHz

1 m – 100 mm

Television broadcasts, microwave oven, microwave devices/communications, radio astronomy, mobile phones, wireless LAN, Bluetooth, ZigBee, GPS and two-way radios such as land mobile, FRS and GMRS radios, amateur radio

Super high frequency

SHF

10

3–30 GHz

100 mm – 10 mm

Radio astronomy, microwave devices/communications, wireless LAN, most modern radars, communications satellites, satellite television broadcasting, DBS, amateur radio

Extremely high frequency

EHF

11

30–300 GHz

10 mm – 1 mm

Radio astronomy, high-frequency microwave radio relay, microwave remote sensing, amateur radio, directed-energy weapon, millimeter wave scanner

Terahertz or Tremendously high frequency

THz or THF

12

300–3,000 GHz

1 mm – 100 μm

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, sub-mm remote sensing, amateur radio



Electromagnetic waves with wavelengths under 1 mm are called light. See "Visible

Spectrum"


The whole used Frequency spectrum reaches from 100 Kilohertz (kHz) to 12.5 Gigahertz

(GHz).


Used for television are:

the VHF range, it contains

-Band I (47 - 68 MHz), also used for broadcast

-Band II (87.5 - 108 MHz), also used for broadcast

-Band III (174 - 230 MHz)


the UHF range with

-Band IV (470 - 582 MHz)

-Band V (790 - 960 MHz)


Used for broadcast are:

-LW (148.5 - 283.5 kHz)

-MW (526.5 - 1.606.5 kHz)

-KW (3.950 - 26.100 kHz)

-UKW (87.5 - 108 MHz), VHF Band II
Comments