Devices that send signals at the same frequency as the GSM system are known as GSM jammers. Mobile phones aren’t working in the region where the jammer is. An enemy is interested in the RF communications that tactical commanders employ to exercise control over their forces. The fundamental concern of preventing the successful transmission of information from the sender to the receiver gives rise to this interest. Since there are now more people using mobile phones than ever before, it is necessary to disable mobile phones in situations where the ringing of cell phones could be heard. Currently, mobile jammer devices are becoming civilian items rather than electronic warfare technologies. These locations include places of worship, university lecture halls, libraries, music halls, meeting rooms, and other locations where silence is valued highly. Mosques are an example of a location where a mobile jammer might be quite useful. These locations include places of worship, university lecture halls, libraries, music halls, and other locations where silence is valued highly. Mosques are an example of a location where a signal jammer might be quite useful. Although mosques gently request that people turn off their cell phones during prayers, some people frequently fail to do so and their mobile phone’s ringing is incredibly distracting, especially when they are praying. To stop mobile phones from receiving and sending the the base station receives mobile signals. To silence all mobile phone ringtones in public spaces like banks, libraries, movie theatres, and conference rooms in order to maintain the appropriate level of quiet. For the service to be blocked, direct contact is made with the GSM provider. To know about signal jammers visit Jammer Master.  

Reasons why jammers are used:

By emitting a signal at a high enough power and on the same frequency as the cell phone, jamming devices overwhelm the phone by causing the two signals to clash and cancel each other out. The jammer must be able to detect and match the power increase from the phone because cell phones are made to enhance power if they encounter low-level interference. Since cell phones are full-duplex devices, they concurrently use two different frequencies for talking and listening. Some jammers only interfere with one of the frequencies that cell phones utilise, which effectively interferes with both frequencies. Because it can only receive one of the frequencies, the phone is deceived into believing there is no service.