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Something About Cell Phone Blocker

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Something About Cell Phone Blocker

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Posted on 28th Sep 2015 @ 10:20 AM

According to WiKi cell phone blocker is a device that used to protect cell phones jammers from receiving and transmitting the mobile signals to a base station.When we used the blocker,it can disable cellular phones to a base station.Cell phones can be used in practically any location,including churches ,mosques,libraries,movie theaters,meeting rooms,and other places where silence is expected.

 8 Bands Selectable Man-carried GSM 2G 3G 4G Cellphone Lojack WiFi & GPS Jammer ( European version)

At the beginning of the 21st century,cell phone blocker proliferate fast to near ubiquitous status.And a short time late ,people found it can help to against the intrusive disruption cell rings--with the development of electronics,people need some devices that can prevent their daily life and privacy from cell ring and phones.Cell phone blocker was invented to jam cell rings and other types of disruption of cell phone.In the beginning,cell phone blocker was developed for law enforcement and the military to interrupt communications by criminals and terrorists.Some new coming and heavy duty blockers were designed to prevent remote control explosives,used for military;and some were designed to jam GPS,Bluetooth ,WiFi,RF for civilian applications.That is why a lot of companies originally contracted to design blockers for government use switched over to sell these devices to private entities.

For jamming a cellular phones ,signal blocker broadcasts on the correct frequencies.Cellular phones have different procession signals,but all phone networks use radio signal that can be interrupted.Blockers can broadcast on any frequency and effective against AMPS,CDMA,TDMA,GSM,PCS,DCS,iDEN and Nestel systems.Old-fashioned analog mobile phones and today’s digital devices are equally susceptible to jamming.