T
W
TADIXS—Tactical data information exchange system.
TAF—Terminal Aerodrome Forecast.
TOP SECRET—Classified information that if
disclosed could cause exceptionally grave damage
to national security.
WAN—Wide area network.
WEBSITE—A collection of one or more web pages
created by a person, company, or organization on
the Web.
U
WEFAX—An acronym for weather facsimile,
specifically the NWS service providing satellite
imagery and graphic products via a geostationary
satellite data broadcast.
UHF—Ultra-high frequency radio transmission,
WMO—World meteorological organization.
generally between 300 MHz and 3 GHz.
URL—Uniform resource locater.
USMTF—United States message text format.
USW—Undersea warfare.
WORLD WIDE WEB—The large hypertext network
of the Internet. Generally refers to the collection of
websites on the Internet and the information that
can be accessed from them.
WPM—Words per minute.
V
X
VALID—Effective, good.
VHF—Very-high frequency radio transmission,
generally between 30 MHz and 300 MHz.
XBT—Expendable bathythermograph, usually
referring to the probe that is dropped in the water and
not recovered.
AI-4
