- directional signals
- Equipment upon a motor vehicle for use in warning other drivers before making a turn. 7 Am J2d Auto § 157.
Ballentine's law dictionary. Anderson, W.S.. 1998.
Ballentine's law dictionary. Anderson, W.S.. 1998.
directional — adj. 1. of or pertaining to direction (definition 2). [WordNet 1.5] 2. serving to indicate direction. [PJC] 3. (Radio) transmitting radio signals in a specific direction, or receiving signals only from a narrow angle of directions, thus serving… … The Collaborative International Dictionary of English
directional — [də rek′shə nəl, dī rek′shə nəl] adj. 1. of, aimed at, or indicating (a specific) direction 2. designed for radiating or receiving radio signals most effectively in one or more particular directions [a directional antenna] 3. designed to pick up… … English World dictionary
Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… … Wikipedia
Signals intelligence operational platforms by nation — This article is a subset article under the main article Signals intelligence, which addresses the unifying conceptual and technical factors and common technologies in this intelligence discipline. This article deals with current signals… … Wikipedia
directional — adjective Date: 1842 1. of, relating to, or indicating direction in space: a. suitable for detecting the direction from which radio signals come or for sending out radio signals in one direction only < a directional antenna > b. operating most… … New Collegiate Dictionary
directional — directionality, n. directionally, adv. /di rek sheuh nl, duy /, adj. 1. of, pertaining to, or indicating direction in space. 2. Radio. adapted for determining the direction of signals received, or for transmitting signals in a given direction: a… … Universalium
directional — di•rec•tion•al [[t]dɪˈrɛk ʃə nl, daɪ [/t]] adj. 1) of, pertaining to, or indicating direction 2) rtv adapted for determining the direction of signals received, or for transmitting signals in a given direction: a directional antenna[/ex] 3) of,… … From formal English to slang
directional — /dəˈrɛkʃənəl/ (say duh rekshuhnuhl), /daɪ / (say duy ) adjective 1. of or relating to direction in space. 2. Radio adapted for determining the direction of signals received, or for transmitting signals in a given direction: a directional antenna …
directional antenna — An antenna or aerial that radiates and receives signals mainly from one direction. For terrestrial radio communications, directionality in an azimuth or a horizontal plane is important. Directional antennae are either monodirectional,… … Aviation dictionary
directional antenna — Antenna An*ten na, n.; pl. {Antenn[ae]}. [L. antenna sail yard; NL., a feeler, horn of an insect.] 1. (Zo[ o]l.) A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually… … The Collaborative International Dictionary of English