Technical Surveillance Counter-measures - Methodology - Radio Frequencies

Radio Frequencies

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.

Read more about this topic:  Technical Surveillance Counter-measures, Methodology

Other articles related to "radio frequencies, radios, frequencies, radio":

Two-way Radio Frequencies
... 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 ...

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