How do the cell phone blocker ?

To better understand how a jammer works , it is advantageous to first understand how your mobile phone works .

In short, every mobile phone uses two different frequencies.

One of the frequencies is used to send information to the mobile mast (uplink) while the other used to obtain information from the mobile phone mast (downlink) .

Independent of the frequency used , the signal is first sent from the phone to the nearest cell tower .
 
 
From the mobile phone mast of the network provider , the signal is then sent back to your mobile phone.

Now, if a jammer is used to generate it, depending on the performance of the blocker , an artificial dead in a will represent 10-500 meters (depending on the strength of the cell phone blocker ) . They blocked around the downlink signals between the nearest cell tower and there registered mobile phones. These compounds are separated with the cell phone blocker immediately. All mobile phones in the vicinity of the site (the range is dependent on the strength of the blocker and the proximity to the nearest cell tower ) will have instant no network coverage .

Consequently, the mobile phone users unable to make calls or receive , while the jammer is turned on. If the jammer is then switched off again , the signal also all immediately available again .

Now to create an artificial dead in a desired area, it is important to choose the right type of cell phone blocker. Some are able to block signals in a much larger area than others.
 

Do you know why other people use cell phone blocker ?

If you hear from a cell phone blocker for the first time , you might initially have a negative impression of such devices. The question that has been automatically .... Why would anyone want to block communication between mobile phone users ?

But there are many reasons why and where you can use a cell phone blocker . Here are just a few examples where jammers can be very useful :

Jammer can , for example, be particularly useful in classrooms or in lecture halls of universities. By blocker an artificial dead zone is created there with the phone, or students can no longer make calls immediately. In addition, they can not cheat , in which they , for example, SMS messages or via the internet while running tests can exchange information with each other.

Owning a cell phone blocker has advantages:

Increase the safety
Prevents cheating
Compliance with a quiet atmosphere
 

While mobile phones are certainly very convenient, they can also be a burden for others who are bothered by the unbearable chatter or jingle .

Despite phone ban cell phone use or undesirable in certain places , some people call and try to guide their discussions . With the cell phone blocker this problem now belongs to the past .