Most people know the cell phone jammer, and they will purchase a jamming device for usage, but do you know what is the Cell Mobile Phone Jammer Working Principle ? Today, let us reveiw it together !

Firstly, let us clarify to you, what is cell phone jammer ? A cell phone jammer device is used to stop nearly cell phone signal from the cell phone tower.

A cell phone jammer device is used by  nightclub and casino owners to stop cell phone using in the building. The jammer kit also stops internet use through wifi network and even blocks bluetooth connections. The cell phone signal jammer also puts an end to text messaging, so students can not SMS each other, while the teacher is trying to teach. The jamming kit also can block the GPS signal, so it can be used in car widely.

Each jammer device has the antennas, some devices have the out side antennas, some device have the hiden antennas. Anyway, all the devices need to through these antennas to block the signal, so these antennas are very very important for the jammer device.

Normally, the cell phone jammer can block the CDMA,GSM,DCS,PCS,PHS,GPS,WIFI,BLUETOOTH,RF and so on. You can choose your favorite frequency and adjust the cell phone jammers.

In some country, the cell phone jammers are used in Army, it is very helpful to the army in fact. It can avoid many accident.

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