Most bugs transmit information, whether data, video, or voice, through the air by using radio waves. The standard counter-measure for bugs of this nature is to search for such an attack with a radio frequency (RF) receiver. Lab and even field-quality receivers are very expensive and a good, working knowledge of RF theory is needed to operate the equipment effectively. Counter-measures like burst transmission and spread spectrum make detection more difficult.
Other articles related to "radio frequencies, radios, frequencies, radio":
... Two-way radios can operate on many different frequencies, and these frequencies are assigned differently in different countries ... but instead can use one or more pre-selected frequencies, easily chosen by a pushbutton or other means ... For example, in the United States, there is a block of 22 channels (pre-selected radio frequencies) assigned, collectively, to the General Mobile Radio Service and Family Radio Service ...
Famous quotes containing the word radio:
“from above, thin squeaks of radio static,
The captured fume of space foams in our ears”
—Hart Crane (18991932)