The Cell phone jammer unit is intended for blocking all mobile phone types within designated indoor areas. Its unique design strict compliance with international standards of safety and electromagnetic compatibility (ISM).
The Cell Phone Jammer is a 'plug and play' unit, its installation is quick and its operation is easy. Once the Cell Phone Jammer is operating, all mobile phones present within the jamming coverage area are blocked, and cellular activity in the immediate surroundings (including incoming and outgoing calls, SMS, pictures sending, etc.) is jammed.
The main purpose of a cell phone jammer is to jam a cell phone signal in a designated area. Cell phone jammer is radio frequency equipment which produces a RF signal to beat the cell phone frequency and effectively jam the signal which results no service to any type of cell phone such as CDMA and GSM in the range of 800MHz to 900MHz.
The jammer described here is for 900MHz range. Once the cell phone jammer is operating, all mobile phones present within the jamming coverage area are blocked and cellular activity in the immediate surroundings is jammed. Presently, cell phones are regularly used by millions of people all over the world. Because we can use a cell phone from just about anywhere to talk to anybody it is one of the greatest inventions for social and business life today.
Even though cell phones have many advantages it eventually arises problems such as their potential use to invade privacy, contribute to academic cheating, even aid in industrial espionage. Its great to call anyone at anytime. Unfortunately, restaurants, concerts and temples all suffer from the spread of cell phones because not all cell phone users know when to stop talking. Who hasn?t seethed through one side of a conversation about an incredibly personal situation as the talker shares intimate details with his friend as well as everyone else in the area. While most of us just grumble and move on, some people are actually going to extremes to retaliate.
As mentioned above, these situations will cause a nuisance, to avoid these problems we need to implement jammers. Disrupting a cell phone is the same as jamming any other type of radio communication. A cell phone works by communicating with its service network through a cell tower or base station.
A jamming device transmits on the same radio frequencies as the cell phone, disrupting the communication between the phone and the cell phone base station in the tower. This is called a denial of service attack. The jammer denies service of the radio spectrum to the cell phone users within the range of the jamming device. As with other radio jamming, cell phone jammers block cell phone use by sending out radio waves along the same frequencies that cellular phones use. This causes enough interference with the communication between cell phones and towers to render the phones unusable. On most retail phones, the network would simply appear out of range. Most cell phones use different bands to send and receive communications from towers. Jammers can work by either disrupting phone to tower frequencies or tower to phone frequencies.
The jammers effect can vary widely based on factors such as proximity to towers, indoor and outdoor settings, presence of buildings and landscape, even temperature and humidity play a role. The possible application areas of jamming system are:
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