ultra-high frequency - definição. O que é ultra-high frequency. Significado, conceito
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O que (quem) é ultra-high frequency - definição

THE 300-3000 MHZ RANGE OF THE ELECTROMAGNETIC SPECTRUM
UHF; Ultra High Frequency; Ultra-high-frequency; Ultrahigh frequency; Ultra-high frequency; Ultrahigh Frequency; Uhf; Uhf radio; UHF Band
  • UHF [[television antenna]] on a residence. This type of antenna, called a [[Yagi–Uda antenna]], is widely used at UHF frequencies.

ultra-high frequency         
(abbrev.: UHF)
¦ noun a radio frequency in the range 300 to 3,000 MHz.
UHF         
¦ abbreviation ultra-high frequency.
UHF         
UHF is a range of radio waves which allows a radio or television receiver to produce a good quality of sound. UHF is an abbreviation for 'ultra-high frequency'.
...Boston UHF channels.
N-UNCOUNT: oft N n

Wikipédia

Ultra high frequency

Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre 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 by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications.

The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz. Two other IEEE radar bands overlap the ITU UHF band: the L band between 1 and 2 GHz and the S band between 2 and 4 GHz.

Exemplos do corpo de texto para ultra-high frequency
1. The radar, or GPR, transmits ultra high–frequency radio impulses into the ground that are reflected back by buried objects or differences in rock density to form a digital image on a screen, without any physical disturbance of the site.