A B C D E F G H I J K L M

N O P Q R S T U V W X Y Z

UAV	unmanned air vehicle	This if the future air force whether they want to admit it or not.
UCA	uniform circular array	One way to group antennas into an array.
UGA	uniform grid array	Another way to group antennas into an array.
ULA	uniform linear array	Yet another way to group antennas into an array.
UUT	unit under test	See device under test.
UVF	unverified failure	A test failure that occurred once but won't repeat, so you can't determine its cause. In the satellite business, any hardware with a UVF can't be launched without approval from the Chief Engineer, Customer, and insurance company.
UWB	ultra wideband	several octaves.

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