spaced antenna

См. также в других словарях:

• antenna — antennal, adj. /an ten euh/, n., pl. antennas for 1, antennae / ten ee/ for 2. 1. a conductor by which electromagnetic waves are sent out or received, consisting commonly of a wire or set of wires; aerial. 2. Zool. one of the jointed, movable,… …   Universalium

• Antenna height above average terrain — In telecommunication, antenna height above average terrain is the antenna height above the average terrain elevations from 3.2 to 16 kilometers (2 to 10 miles) from the antenna for the eight directions spaced evenly for each 45° of azimuth… …   Wikipedia

• Television antenna — A Winegard HD 7084P 68 element VHF/UHF aerial antenna A television antenna, or TV aerial, is an antenna specifically designed for the reception of over the air broadcast television signals, which are transmitted at frequencies from about 41 to… …   Wikipedia

• T2FD Antenna — The T2FD (Tilted Terminated Folded Dipole) is a general purpose shortwave antenna developed in the late 1940s by the United States Navy [ An Experimental All Band Nondirectional Transmitting Antenna by Gil L. Countryman, W1RBK, (W3HH), QST, June… …   Wikipedia

• folded dipole antenna — An antenna composed of two parallel, closely spaced dipole antennae connected at their ends, with one fed at its center. The folded dipole antenna is the same size, and has the same radiation pattern, as an ordinary dipole antenna, but the feed… …   Aviation dictionary

• phased-array antenna — An antenna that consists of a number of elements and in which the direction of the beam can be changed by varying the relative phase of the signal applied to each of these elements. The phased array antenna scans electronically. Phased array may… …   Aviation dictionary

• Yagi antenna — /yah gee, yag ee/, Radio. a sharply directional antenna array, consisting of one or two dipoles connected to the transmitting or receiving circuit, and several insulated dipoles all parallel and about equally spaced in a line. [1940 45; named… …   Universalium

• Yagi antenna — /yah gee, yag ee/, Radio. a sharply directional antenna array, consisting of one or two dipoles connected to the transmitting or receiving circuit, and several insulated dipoles all parallel and about equally spaced in a line. [1940 45; named… …   Useful english dictionary

• AZUSA — refers to a ground based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA dated back to the early 1950s and was named after the southern California town (Azusa, California) where the system was… …   Wikipedia

• SAIDI — System Average Interruption Duration Index (Computing » Networking) * Spaced Antenna Imaging Doppler Interferometer (Academic & Science » Ocean Science) …   Abbreviations dictionary

• Air traffic control radar beacon system — The air traffic control radar beacon system (ATCRBS) is a system used in air traffic control (ATC) to enhance radar monitoring and separation of air traffic. ATCRBS assists ATC radars by acquiring information about the aircraft being monitored,… …   Wikipedia