What is UHF?

UHF, which is the short for Ultra high frequency, refers to a range of electromagnetic waves with frequencies between 300 MHz and 3 GHz (3,000 MHz), also known as the decimetre band or decimetre wave as the wavelengths range from one to ten decimetres (10 cm to 1 metre). Radio waves with frequencies above the UHF band fall into the SHF (super high frequency) and EHF (extremely high frequency) bands, all of which fall into the microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. See Electromagnetic spectrum and Radio spectrum for a full listing of frequency bands.

Here we list a brief summary of some UHF frequency usages for reference:

United States:

  • 300 - 420 MHz: government use, including meteorology
  • 420 - 450 MHz: radiolocation and Amateur> "70 cm" band
  • 450 - 470 MHz: UHF business band, GMRS, and FRS 2-way "walkie-talkies"
  • 470 - 512 MHz: TV channels 14-20, public safety
  • 512 - 806 MHz: TV channels 21-69 (channels 53-69 to be auctioned)
  • 806 - 824 MHz: pocket pagers and Nextel SMR band
  • 824 - 849 MHz: ">Cellular phones, A & B franchises, mobile phone
  • 849 - 869 MHz: public safety 2-way(fire, police, ambulance)
  • 869 - 894 MHz: cellular phones, A & B franchises, base station
  • 902 - 928 MHz: ISM band: cordless phones and stereo, datalinks
  • 928 - 960 MHz: mixed Studio-Transmitter Links, mobile 2-way, other
  • 1240 - 1300 MHz: Amateur radio
  • 1850 - 1910 MHz: PCS mobile phone - note below
  • 1930 - 1990 MHz: PCS base stations - note below
  • Note: order is A, D, B, E, F, C blocks. A,B,C = 15 MHz; D,E,F = 5 MHz
  • 2310 - 2360 MHz: Satellite radio Sirius and XM
  • 2390 - 2450 MHz: Amateur radio shared with below:
  • 2400 - 2483.5 MHz: ISM, 802.11, 802.11b, 802.11g Wireless LAN
  • around 2450 MHz: ">Microwave oven

Australia:

  • UHF CB Australia - UHF CB News, Information & Repeater Locations. UHF CB Supporting and expanding the UHF CB network
  • UHF Citizens Band: 300- 3000MHz

Canada:

  • 470-806 MHz: Terrestrial television (with select channels in the 700 MHz band left vacant)
  • 1452-1492 MHz: Digital Audio BroadcastingL band>
  • Many other frequency for Canada and Mexico are similar to their US counterparts

United Kingdom:

  • 380–395 MHz: Terrestrial Trunked Radio(TETRA) service for emergency use
  • 430–440 MHz: Amateur (ham - 70 cm band)
  • 606–614 MHz: Protected radio-astronomy
  • 470–862 MHz: TV channels 21–69(channel 36 used for radar, channel 38 used for radio astronomy, channel 69 used for licenced and licence exempt wireless microphones, 31-40 and 63-68 to be released and may be made available for other uses by Ofcom. Public consultation due December 2006)
  • 1240–1316 MHz: Amateur ham - 23 cm band)
  • 1880–1900 MHz: DECT Cordless telephone
  • 2310–2450 MHz: Amateur radio (ham - 13 cm band)