radio observation | an observation made with a radio telescope |
circular plane compass plane | a plane with a flexible face that can plane concave or convex surfaces |
clock radio | a radio that includes a clock that can be set to turn it on automatically |
compass | navigational instrument for finding directions |
compass | drafting instrument used for drawing circles |
compass card mariner's compass | compass in the form of a card that rotates so that degrees or North points to magnetic north |
compass saw | a handsaw with a narrow triangular blade for cutting curves |
magnetic compass | compass based on an indicator (as a magnetic needle) that points to the magnetic north |
omnirange omnidirectional range omnidirectional radio range | a navigational system consisting of a network of radio beacons that provide aircraft with information about exact position and bearing |
push-button radio | a radio receiver that can be tuned by pressing buttons |
radar microwave radar radio detection and ranging radiolocation | measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects |
radio wireless | a communication system based on broadcasting electromagnetic waves |
radio antenna radio aerial | omnidirectional antenna comprising the part of a radio receiver by means of which radio signals are received |
radio beacon beacon | a radio station that broadcasts a directional signal for navigational purposes |
radio chassis | a chassis for a radio receiver |
radio compass | a direction finder that gives a bearing by determining the direction of incoming radio signals |
radio interferometer | radio telescope that uses interference patterns from two antennas instead of a parabolic antenna |
radio link link | a two-way radio communication system (usually microwave), part of a more extensive telecommunication network |
radio-phonograph radio-gramophone | electronic equipment consisting of a combination of a radio receiver and a record player |
radio receiver receiving set radio set radio tuner wireless | an electronic receiver that detects and demodulates and amplifies transmitted signals |
radio station | station for the production and transmission of AM or FM radio broadcasts |
radio telescope radio reflector | astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extraterrestrial sources |
radio transmitter | transmitter that is the part of a radio system that transmits signals |
radio brightness | the strength of a radio wave picked up by a radio telescope |
radio frequency | an electromagnetic wave frequency between audio and infrared |
scope range reach orbit compass ambit | an area in which something acts or operates or has power or control: the range of a supersonic jet, a piano has a greater range than the human voice, the ambit of municipal legislation, within the compass of this article, within the scope of an investigation, outside the reach of the law, in the political orbit of a world power |
compass range reach grasp | the limit of capability, within the compass of education |
radio astronomy | the branch of astronomy that detects and studies the radio waves emitted by celestial bodies |
radio radiocommunication wireless | medium for communication |
radio broadcast | a broadcast via radio |
radio news | a radio broadcast of news |
radio beam beam | a signal transmitted along a narrow path, guides airplane pilots in darkness or bad weather |
radio beacon | a characteristic signal emitted by a transmitter used for navigation |
radio noise | static at radio wavelengths |
quasar quasi-stellar radio source | a starlike object that may send out radio waves and other forms of energy, many have large red shifts |
radio source | an object that radiates radio waves |
radio announcer | an announcer whose voice is broadcast on radio |
radio operator | someone who operates a radio transmitter |
De Forest Lee De Forest Father of Radio | United States electrical engineer who inpatented the first triode vacuum tube, which made it possible to detect and amplify radio waves (-) |
radiopacity radio-opacity | opacity to Xays or other radiation |
radio wave radio emission radio radiation | an electromagnetic wave with a wavelength between . cm to , m |
radio signal | a radio wave used to transmit and receive messages |
radio spectrum radio-frequency spectrum | the entire spectrum of electromagnetic frequencies used for communications, includes frequencies used for radio and radar and television |
compass plant compass flower | any of several plants having leaves so arranged on the axis as to indicate the cardinal points of the compass |
prairie bird's-foot trefoil compass plant prairie lotus prairie trefoil Lotus americanus | North American annual with red or roseolored flowers |
compass point point | any of horizontal directions indicated on the card of a compass, he checked the point on his compass |
cardinal compass point | one of the four main compass points |
north magnetic north compass north | the direction in which a compass needle points |
grok get the picture comprehend savvy dig grasp compass apprehend | get the meaning of something, Do you comprehend the meaning of this letter? |
radio | transmit messages via radio waves, he radioed for help |