Radio Signals

Some articles on radio signals, radio, radio signal, signals:

Ray Tracing (physics) - Uses - Radio Signals
... See also Radio propagation One particular form of ray tracing is radio signal ray tracing, which traces radio signals, modeled as rays, through the ionosphere where they are refracted and/or ... An example of physics-based radio signal ray tracing is shown to the right ... Radio communicators use ray tracing to help determine the precise behavior of radio signals as they propagate through the ionosphere ...
Edwin Howard Armstrong - Early Work
... Thus, the Audion could not only detect and amplify radio signals, it could transmit them as well ... third element to the Audion (the grid) and the subsequent move to modulated (voice) radio is not disputed, De Forest did not put his device to work ... and experimentation with the Audion moved radio reception beyond the crystal set and spark-gap transmitters ...
Tropospheric Scatter
... practitioners) is a method of transmitting and receiving microwave radio signals over considerable distances – often up to 300 km ... This method of propagation uses the tropospheric scatter phenomenon, where radio waves at particular frequencies are randomly scattered as they pass through the upper layers of the troposphere (hence ... Radio signals are transmitted in a tight beam aimed at the tropopause, midway between the transmitter and receiver sites as the signals pass through the troposphere they are scattered ...
Cassini–Huygens - Instruments
... mapping spectrometer, a composite infrared spectrometer, a cosmic dust analyzer, a radio and plasma wave experiment, a plasma spectrometer, an ultraviolet imaging spectrograph, a magnetospheric imaging ... of Saturn, its rings, and its moons, for return to the Earth by radio telemetry ... objects (like mountains and canyons) by sending radio signals that bounce off Titan's surface and timing their return ...

Famous quotes containing the words signals and/or radio:

    The term preschooler signals another change in our expectations of children. While toddler refers to physical development, preschooler refers to a social and intellectual activity: going to school. That shift in emphasis is tremendously important, for it is at this age that we think of children as social creatures who can begin to solve problems.
    Lawrence Kutner (20th century)

    There was a girl who was running the traffic desk, and there was a woman who was on the overnight for radio as a producer, and my desk assistant was a woman. So when the world came to an end, we took over.
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