Universal Integrated Circuit Card

unsigned integer, most significant bit first

Abbreviation for ultra low frequency. See electromagnetic spectrum.

Frequencies from 300 MHz to 3000 MHz. See electromagnetic spectrum.

Frequencies from 300 Hz to 3000 Hz. See electromagnetic spectrum.

The portion of the electromagnetic spectrum in which the longest wavelength is just below the visible spectrum, extending from approximately 4 nm to approximately 400 nm.
Note: Some authorities place the lower limit of uv at values between 1 and 40 nm, 1 nm being the upper wavelength limit of x-rays. The 400-nm limit is the lowest visible wavelength, i.e.,… (Read More →)

See UWB.

Unified Modeling Language

Universal Mobile Telecommunication System

Synonym illegal character.