Important use of radio waves
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REMOTECONTROLImportant use of radio waves.
RADIOFREEEUROPEImportant voice on the air waves.
PULSARSource of radio waves
PULSARCelestial source of radio waves
QUASARCelestial source of radio waves
PULSARDistant source of radio waves
pulsara celestial source of radio waves
pulsarsPULSAR, a celestial source of radio waves
shortwaveBroadcasting using radio waves of this wavelength
wavelengthsThis distance as a distinctive feature of radio waves from a transmitter
wavelengthThis distance as a distinctive feature of radio waves from a transmitter
radiopacitythe state of being radio-opaque i.e. not allowing radio waves through
focussing(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
focusses(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
nondirectional(of sound, light, radio waves, etc.) Equally sensitive, intense, etc., in every direction
focusing(of a lens) Concentrate (light, radio waves, or energy) into a sharp beam
radiopacitiesRADIOPACITY, the state of being radio-opaque i.e. not allowing radio waves through
resonatorsA device that displays electrical resonance, esp. one used for the detection of radio waves
resonatorA device that displays electrical resonance, esp. one used for the detection of radio waves
radiosignalling through space, without connecting wires, by means of electromagnetic waves / to transmit by radio
barrettera resistor capable of variation and used eg for detecting radio waves or stabilizing electric current
focussing(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
focusses(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
televisionthe transmission by radio waves, and reproduction on a screen, of visual images, usually accompanied by sound
focusing(of light, radio waves, or other energy) Become concentrated into a sharp beam of light or energy
barrettersBARRETTER, a resistor capable of variation and used eg for detecting radio waves or stabilizing electric current
televisionsTELEVISION, the transmission by radio waves, and reproduction on a screen, of visual images, usually accompanied by sound
transmitterA set of equipment used to generate and transmit electromagnetic waves carrying messages or signals, esp. those of radio or television
transmittersA set of equipment used to generate and transmit electromagnetic waves carrying messages or signals, esp. those of radio or television
telearchicscontrol of mechanical devices remotely, either by radio (as of ships and aircraft), by sound waves, or by beams of light also TELECONTROL
telecontrolcontrol of mechanical devices remotely, either by radio (as of ships and aircraft), by sound waves, or by beams of light also TELEARCHICS
telecontrolsTELECONTROL, control of mechanical devices remotely, either by radio (as of ships and aircraft), by sound waves, or by beams of light also TELEARCHICS
directionalRelating to, denoting, or designed for the projection, transmission, or reception of light, radio, or sound waves in or from a particular direction or directions
troposcatterthe propagation of radio waves by using irregularities in the troposphere to scatter the signals beamed up by means of high-powered uhf transmitters and parabolic antennas
troposcattersTROPOSCATTER, the propagation of radio waves by using irregularities in the troposphere to scatter the signals beamed up by means of high-powered uhf transmitters and parabolic antennas
ultrashort(of radio waves) Having a wavelength significantly shorter than that of the usual shortwaves, in particular shorter than 10 meters (i.e., of a VHF frequency above 30 MHz)
lidardevice similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles and varying physical conditions in the atmosphere
lidarsdevice similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles and varying physical conditions in the atmosphere
pulsara celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star
pulsarsa celestial source of pulsating electromagnetic radiation (as radio waves) characterized by a short relatively constant interval (as .033 second) between pulses that is held to be a rotating neutron star