Theory and Application of Cell phone jammer / blocker.

A phone jammer transmits low power radio signals to cut off communications between cell phones and cell base stations. It does not interfere with any communications other than cellular phones within the defined regulated zone.
Upon activating a phone jammer, all idle phones will indicate "NO NETWORK." Incoming calls are blocked as if the cellular hand phone were off.
When the phone jammer is turned off, all cell hand phones will automatically re-establish communications and provide full service.

Provides Acoustics Isolation.

A phone jammer provides the ultimate solution in any area where cellular communications frequently cause nuisance either by loud incoming call rings or resulting loud telephone conversations. Examples of places where cell phones can be disruptive include:

. Public Transport    (trains, busses, etc.)
. Theatres    (movie theatres, concert halls, playhouses, opera houses, etc.)
. Lecture rooms
. Libraries
. Museums
. Restaurants
. Schools and Universities (classrooms, lecture halls, auditoriums, etc.) cell phone jammers can  

  prevent students from SMS cheating.
. Places of Worship (mosques, shrines, churches, temples, etc.)
. Country Clubs
. Sporting Events
. Recording Studios
. TV Stations, Radio Stations, etc.

Protects Against Breach Of Security Policy.

Cell phones are innocent looking communication devices that enable continuous transmission of voice/data. In secured places, where policy does not warrant the use of mobile phones, it is almost impossible to detect a person conducting cell phone conversations or to spot other such misuse, especially when mobile phones are very small. Examples of places where cell phone use may not be allowed include:

. Businesses    (conferences, board of directors rooms, seminars, meeting rooms)
. Government Building and Government Complexes
. Law Enforcement Facilities
. Police Stations
. Drug Enforcement Facilities
. Prison Facilities, Jails, Etc.
. Courts of Law and Court Houses
. Embassies
. Military Installations, Military Complexes, and Military Training Centers

Addresses Safety Issues.

In accordance with fire code regulations, mobile phones must be switched "off" in any area that has a potentially explosive atmosphere, including "petrol service stations" where sparks could cause an explosion or fire. These preventable accidents occur more frequently than most people are aware.
Areas where mobile phone use is prohibited include:

. Petrol/ Gas Stations
. Oil Refineries and Storage Facilities
. Offshore Oil Platforms
. Petrol/Gas Transportation Vehicles
. Chemical    Refineries   and Storage Facilities
. Chemical Transportation Vehicles
. Laboratories
. Fireworks Factories
. Liquefied Petroleum  (LPG) Refineries and Storage Facilities
. LPG Transportation Vehicles
. Natural   Gas Refineries and Storage facilities
. Natural Gas Transportation Vehicles
. Power Plants
. Industrial   Plants   (or anywhere the air contains chemicals or particles such as grain, dust, or

  metal powders)
. Hospitals

We recommend low power cell phone jammers for use in all the listed areas for obvious safety reasons.

Home     Contact Us

Company:

Earth Link Network (STEC) started its business in 2003 as an R&D and OEM manufacturer for frequency, electrical and electronics related products.

The first badge of products developed by STEC are:

• Remote Mobile Surveillance via Mobile Phone.

• Electronics and Electrical Household appliances.

• Frequency Jamming or blocking devices.

Associate Company:

• Earth Link Network. Malaysia

• STEC Advance Equips. Malaysia

• Solid Precision Engineering. Malaysia.

Main Products Lines: