Satellite Technology Glossary

Satellite Technology Glossary

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There are 58 names in this directory beginning with the letter U.
U/C
Up-Converter

U/D
Up/down chain

UA
Unnumbered Acknowledge Response

UAMPT
African and Malagasy Postal and Telecommunications Union

UAPT
African Postal and Telecommunications Union

UARS
Upper Atmospheric Research Satellite

UART
Universal Asynchronous Receiver/Transmitter

UARTO
United Arab Republic Telecommunication Organization

UAS
Unified Antenna Structure

UAX
Unit Automatic Exchange

UBK
Unblock

UC
Unit Call

UDC
Universal Data Classification

UDMH
Unsymmetrical dimethyl Hydrozine

UDTS
Universal Data Transfer Service

UER
Union Europeenne Radiodiffusion (European Broadcasting Union)

UET
Unattended earth terminal

UFB
Unfit for Broadcast

UFT
Voice Frequency (VF) Telegraphy

UHF
Ultra-High Frequencies (Band 9; 300-3000 MHz)

UITP
International Union of Public Transport

UJT
Unijunction Transistor

ULK
Unlock

ULPC
Uplink power control system

UN
United Nations

UNCTAD
United Nations Conference on Trade and Development (UN)

UNDP
Development Program (UN)

UNDRO
Office of Disaster Relief Coordinator (UN)

UNEP
Environment Program (UN)

UNESCO
Educational, Scientific and Cultural Organization (UN)

UNI
User-network interface

Unicast
Data transmission from a single source to a single destination. Contrast with Multicast.

UNICODEC
Universal Coder/Decoder (TV Service)

UNIPEDE
(International union of Producers and Distributors of Electric Energy)

UNITAR
Institute for Training and Research (UN)

UNL
Unlatched

UPC
Universal Product Code

UPLS
Up-Front-Lump-Sum

UPS
Uninterruptible Power Supply

URM
Universal Restoration Manual

URSI
(International Union of Radio Science)

URTNA
(Union of National Radio and Television Organizations of Africa)

US
Unit Separator

USAID
United States Agency for International Development (USA)

USASAT
Generic name given to USA satellite networks

USB
Upper Side Band

USGS
United States Geological Survey (USA)

USISC
International Service Carriers (USA)

USS
Uplink Selector Switch

UST
"Unblock SPADE Terminal" command

UT
Universal Time

UTC
Universal Coordinated Time

UTCA
Unconstrained Terminal Control Assignment

uW OR UW
uW Microwatt

UWER
Unique word error rate

UWL
Unique word loss

UWP
Unique word processor

UZrH
Uranium zirconium hydride reactor