Image via Wikipedia
What is a mobile phone jammer?
As the name depicts a mobile phone jammer is basically a device used to prevent cellular phones from receiving signals from or transmitting signals to base stations. In a simple words it will jams the mobile phone from being used in particular range or area.When it is fit in particular area then it will disable all the mobile phone that are being used in that area. These devices can be used in almost any location or workplace, but are found primarily in places where a phone call would be particularly disruptive because silence is required.These are also use in security enable locations where ideal goal is to avoid the communications.
Functioning of Phone jammers
Mobile phone jammers works on the principle of radio wave frequency.All the mobile phone have the specified radio frequency under which they are operating.Phone jammers interfere with the working frequency of the mobile phone and results in noisy and interference frequency.In this way cell phone jammers block cell phone use by sending out radio waves along the same frequencies that cellular phones use (as described above). This causes plenty of interference with the communication between cell phones and signal generated from the mobile towers.
On talking with various sources and referencing from the wiki we have come to the point that
Most cell phones use different bands to send and receive communications from towers (called full duplexing). Jammers can work by either disrupting phone to tower frequencies or tower to phone frequencies. Smaller handheld models block all bands from 800MHz to 1900MHz within a 30 foot range (9 meters). Small instruments tend to use the former method, while larger more costly models may interfere directly with the tower. The radius of cell phone jammers can range from a dozen feet for pocket models to kilometers for more dedicated units. The TRJ-89 jammer can block cellular communications for a 5-mile (8 km) radius.
Their are several types of duplexing like single duplexing , double duplexing mode and multiple duplexing.Duplexing basically defines the transfer of signal (voice signal) in a manner.These manner are defined from the way of duplexing.Hence duplexing can carry out the jamming of voice signals.
Here are the few reasons to choose a jammers:
- If you are an educational institutes then phone should be banned while examinations (in most of the places).So you should go for a mobile phone jammers to avoid any issues and disturbance created by students or faculty staffs.
- If you belongs to Hospitals then mental serenity is most important in healing form diseases, so you should have phone jammers near ICU other sensitive areas.
- Phone jammers are quite essential during election to avoid any type of misdeeds and unfair means.
Note: Source form research based on Wikipedia and Mobile telecommunications books.
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