In telecommunication

Telecommunication

Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...

, the term communications jamming (COMJAM) has the following meanings:

1. The portion of electronic jamming that is directed against communications
   Telecommunication
   Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
   
    circuits and systems.
2. The prevention of successful radio
   Radio
   Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...
   
    communications by the use of electromagnetic signals, i.e., the deliberate radiation
   Radiation
   In physics, radiation is a process in which energetic particles or energetic waves travel through a medium or space. There are two distinct types of radiation; ionizing and non-ionizing...
   
   , reradiation
   Reradiation
   In telecommunication, the term reradiation has the following meanings:#Electromagnetic radiation, at the same or different wavelengths, i.e., frequencies, of energy received from an incident wave....
   
   , or reflection
   Reflection (physics)
   Reflection is the change in direction of a wavefront at an interface between two differentmedia so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves...
   
    of electromagnetic energy with the objective of impairing the effective use of electronic communications systems.

The aim of communications jamming is to prevent communications by electromagnetic means, or at least to degrade communications sufficiently to cause delays in transmission

Transmission (telecommunications)

Transmission, in telecommunications, is the process of sending, propagating and receiving an analogue or digital information signal over a physical point-to-point or point-to-multipoint transmission medium, either wired, optical fiber or wireless...

 and reception. Jamming may be used in conjunction with deception to achieve an overall electronic counter-measure (ECM) plan implementation.

External links

-Communication Jamming Systems, Manpack Jammers, IED, UAV, Portable Radio Jamming