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Cell-phone-jammers-and-their-categories
By David McDaniel
A Cell Phone Jammer is an instrument that prevents phones from receiving and transmitting signals to the base station. Mobile Phone Jammers can block all kinds of mobile phone noise in places such as churches, mosques, libraries, Movie Theaters and meeting rooms. After purchasing one you simply flip the switch hand enjoy peace and quiet. Cell Phone Jammers are a growing necessity for accomplishing a more cultured society, because there is a growing demand for silence in places such as hospitals, libraries and Movie Theatres. The Cell Phone Jammer is also gaining popularity in schools, where teachers turn them on during exams to stop cheaters from texting test answers.
The use of Cell Phone Jammers in high security areas, prisons, and gas stations has also become widespread for obvious reasons.
Cell Phone Jammers transmit a low power radio signal, to cut-off communications between the cell phone and base-stations. It does not interfere with any communications other than within the defined zone. More importantly, the devices do NOT interfere with EMS, Fire, or Police bands.
Upon activating a Mobile Phone Jammer or Cell Phone Jammer, all cell phones within range will indicate "NO SERVICE". Incoming calls are blocked as if the phone has been turned off, usually sending the call to voice mail.
When the Cell Phone Jammer is turned off, all affected cell phones will automatically re-establish communications and provide full service. Cell Phone Jammers to NOT damage cell phone handsets.
Let’s take a look at the different types of jammers currently available in the market:
1) Adjustable Cell Phone Jammer – This quad band device is the most sophisticated Digital Mobile Phone Jammer available in its class, a fixed unit with
adjustable settings to keep away from noise or disturbance of phone calls. Application areas are hospitals, churches, libraries, cinemas, prisons, schools (during exams) and other Mobile Free zones and prohibited areas.
2) Portable Cell Phone Jammer – sometimes called a pocket jammer - Looks just like your mobile phone, allows you to carry it anywhere without others being aware. This device is great for creating a personal quiet zone, as well as disconnecting that loud inconsiderate one-sided conversation on public transportation. This is also an excellent device for use during personal meetings with doctors, politicians, VIP’s, etc., when you do NOT want either party to be interrupted.
3) High Power Devices – These models produce a huge jammed area of up to one mile in diameter. Mostly military and government applications, but also used to create free zones for:
# Hospitals
# Government Buildings
# Sporting Events
# Law Enforcement Facilities
# Military Installations
# Mobile Phone Free Zones and Prohibited Areas
# Prisons
# Offshore Oil Platforms
# Chemical Storage / Transfer Facilities
So if you are shopping for some good gadgets to exercise your right to peace and quiet, keep in mind the above described Cell Phone Jammers and their functions. Article Source: http://www.upublish.info About the Author:
David McDaniel
For more information on cell phone jammer, visit my website TheSignalJammer.Com
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