| radio frequency |
an electromagnetic wave frequency between audio and infrared
출처: wordnet.princeton.edu/perl/webwn
|
|---|---|
| radio frequency |
1. (Abbreviated RF.) The number of oscillations per second of the electric and magnetic fields in the radio portion of the electromagnetic spectrum, generally that portion between 10 4 and 10 12 Hz; specifically, the frequency of a given radio carrier wave. 2. In radio or radar, pertaining to a signal at the transmitted or received frequency, as opposed to a signal translated to a different frequency (IF signal) or detected (video signal).
출처: amsglossary.allenpress.com/glossary/browse
|
| radio frequency |
For video, refers to the antenna inputs to a TV set, or the video signal as it is processed by the TV set's tuner. Also refers to audio channels encoded on video disks by being modulated onto carrier frequencies as if they were going to be broadcast.
출처: members.aol.com/ajaynejr/vidglos6.htm
|
| radio frequency |
An alternatingAC current or voltage having a frequency above about 100kHz, so-called because these frequencies are radiated as electro-magnetic waves by radio and television, and as high as 30 GHz (30,000 MHz). The constant frequency of the carrier wave (the frequency which you tune into) falls within this range. This is then modulated by the audio (or other) signal, according to some process such as AM or FM.
출처: www.dilettantesdictionary.com/index.php
|
| radio frequency |
The frequencies of electromagnetic waves, generally between 10 kHz and 1 THz, corresponding to a wavelength of between 30 km and 0.3 mm. Such waves are used to operate cavity resonators in particle accelerators.
출처: www.desy.de/pr-info/desyhome/html/presse/glossary....
|