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



Back to: "U"

UHF
Usado para
ultra high frequency
Definição1
Frequencies of electromagnetic radiation between 300 and 3,000 megahertz. The wavelengths for ultrahigh frequencies range between 100 and 10 centimeters. The UHF band is between VHF (very-high frequency) and the SHF (super-high frequency) bands.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
Fonte2
INTERNATIONAL MARITIME ORGANIZATION; INTERNATIONAL CIVIL AVIATION ORGANIZATION. IAMSAR manual: international aeronautical and maritime search and rescue manual. Volume II: mission co-ordination. 3rd ed. Montréal, 2013. (Doc. 9731)
Fonte3
FEDERAL AVIATION ADMINISTRATION. Instrument procedures handbook: FAA-H-8083-16. Oklahoma, OK: FAA, 2014.
Contexto
Frequency bands allocated by ITU for the aeronautical mobile service include some in the high frequency (HF) spectrum (3,000 to 30,000 kHz), the very high frequency (VHF) spectrum (30 to 300 MHz), and the ultra-high frequency (UHF) spectrum (300 to 3,000 MHz).
Georgia Centers, and the remote sites with discrete very high frequency (VHF) and ultra high frequency (UHF) for communicating with the appropriate ARTCC.
Subárea1
Aeronautical Telecommunications
Português
frequência ultra alta