ground communication vhf radio
71Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · …
72broadcasting — /brawd kas ting, kah sting/, n. 1. the act of transmitting speech, music, visual images, etc., as by radio or television. 2. radio or television as a business or profession: She s training for a career in broadcasting. [1920 25; BROADCAST + ING1] …
73Brevity code — Contents 1 American/NATO codes 1.1 A 1.2 B 1.3 C …
74Future Air Navigation System — The world s Air Traffic Control system still uses components defined in the 1940s s following the 1944 meeting in Chicago which launched the creation of the International Civil Aviation Organisation (ICAO). This traditional ATC system uses analog …
75Gol Transportes Aéreos Flight 1907 — Computer generated image of Flight 1907 and N600XL about to collide. The Legacy s left winglet sliced off nearly half of the Boeing s left wing.[1] …
76CN Tower — This article is about the CN Tower in Toronto. For the tower in Edmonton, see CN Tower (Edmonton). CN Tower CN Tower is the world s 5th tallest free standing structure.[1] …
77Air traffic control — For the Canadian musical group, see Air Traffic Control (band). Airport Traffic Control Towers (ATCTs) at Amsterdam s Schiphol Airport, the Netherlands …
78Ultra high frequency — (UHF) designates a range (band) of electromagnetic waves with frequencies between 300 MHz and 3 GHz (3,000 MHz). Also known as the decimeter band or decimeter wave as the wavelengths range from ten to one decimeters. Radio waves with frequencies… …
79Contesting — Champions of the 2002 World Radiosport Team Championship (WRTC), Helsinki, Finland. Photo: R. A. Wilson, N6TV Contesting (also known as radiosport) is a competitive activity pursued by amateur radio operators. In a contest, an amateur radio… …
80warning system — ▪ military technology Introduction in military science, any method used to detect the situation or intention of an enemy so that warning can be given. Because military tactics from time immemorial have stressed the value of surprise… …
