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While not limited to prisons, Communication Jammers are deployed first and foremost by correctional institutions to actively disrupt criminals from committing additional offenses by using smuggled cell phones in prisons. Other users of Communication Jammers consist of Government facilities, diplomatic embassy and consulate security, as well as research institutions who need to secure their facilities.

Please Note:  All Jamming devices in part or whole may be regulated by the US Department of State in accordance with the guidelines of ITAR (International Traffic in Arms) title 22, Code of Federal Regulations (CFR), Parts 120-130. An export license may be required before proceeding. RF Jamming in some countries is regulated. In the United States, RF Jamming is prohibited by the FCC. Using an RF Jammer without FCC permission is a violation. Some Federal Agencies and US Armed Forces may be exempt.

Communication Jammers saturate buildings with RF interference to block calls. They also calibrate on site for a designated perimeter outside of the building. For Prisons, this is effectively a Prison Jammer that facilities prefer to use because it helps limit the disturbance to neighboring cities and villiages.

Some Prison security requirements depend on communication jammers to prevent criminals from making calls, many correctional organizations employ an RF Detection System as well. RF Detection creates a responsive and reactive solution that Communication Jammers work with. In that way, the jamming of Prison cell phones only takes place when a phone has been detected. The alternative is to broadcast jamming all the time.

Examples of Communication Jammer variations placed in prisons, secure facilities, and military bases are:

  • Wifi Jammer - used to prevent voice and data over a wireless network
  • GSM Jammer - designed for jamming GSM mobile handsets in IMT 2000, 2G, 3G (UMTS), 4G (LTE)
  • CDMA Jammer - bands to block by RF Jamming include DCS and PCS, UMTS, as well as UMTS + LTE phone handsets and
    wireless devices

When using Communication Jammers, all RF signals can be targeted however the firmware has been specifically designed to accommodate mobile phone signals for use in Prisons.

This is because of the ever increasing problem of smuggled phones in prisons as well as unauthorized phones in Government buildings.