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Ultra high frequency
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Ultra high frequency is the ITU designation for radio frequencies in the range between 300 megahertz and 3 gigahertz, also known as the decimetre band as the wavelengths range from one meter to one te
UHF television antenna on a residence. This type of antenna, called a Yagi–Uda antenna, is widely used at UHF frequencies.
UHF television antenna on a residence. This type of antenna, called a Yagi–Uda antenna, is widely used at UHF frequencies.
Retevis GMRS two-way radios operating on 462 and 467 MHz in the UHF band, showing the short antennas used
Retevis GMRS two-way radios operating on 462 and 467 MHz in the UHF band, showing the short antennas used
Super high frequency
Videos
Super high frequency is the ITU designation for radio frequencies in the range between 3 and 30 gigahertz. This band of frequencies is also known as the centimetre band or centimetre wave as the wavel
Ultra high frequency
…band as the wavelengths range from one meter to one tenth of a meter (one decimeter). Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly…
A variety of parabolic antennas on a communications tower in Australia for point-to-point microwave communication links. Some have white plastic radom
A variety of parabolic antennas on a communications tower in Australia for point-to-point microwave communication links. Some have white plastic radomes over their apertures to protect against rain.
X-band (8 - 12 GHz) marine radar antenna on a ship. The rotating bar sweeps a vertical fan-shaped beam of microwaves around the water surface to the h
X-band (8 - 12 GHz) marine radar antenna on a ship. The rotating bar sweeps a vertical fan-shaped beam of microwaves around the water surface to the horizon, detecting nearby ships and other obstructions
Microwaves are often carried by waveguide, such as this example from an air traffic control radar, since other types of cable have large power losses
Microwaves are often carried by waveguide, such as this example from an air traffic control radar, since other types of cable have large power losses at SHF frequencies.