Cell phone smuggling has become an increasingly unmanageable problem for prisons and other correctional facilities. These phones pose a significant security threat and can be used to endanger the welfare of correctional workers as well as other inmates, or to coordinate escapes attempts. While the first line of defense against this threat is to prevent the phones from entering correctional facilities in the first place, many often slip past security screenings and wind up in the hands of inmates. It has become increasingly apparent security screenings aren't sufficiently mitigating this threat, and there is a significant need for technology that prevents prisoners from making cell phone calls.

There is a solution available to rectify this significant problem. Signal jamming power amplifiers utilizing LDMOS technology are designed to operate in a band of 1930 to 1990 MHz to jam typical communication band frequencies. These power amps can offer a minimum output power of 100 watts with a gain of 50dB, with multiple carrier inputs. Typical current draw from a nominal +28 VDC supply at rated output power is 8 A. Many designs offer an isolator-protected output to guard against transistor failure due to infinite VSWR mismatch. This jamming renders cell phones inoperable and prevents calls or texts from being sent, rendering the phones essentially useless and mitigating any potential security threats posed by them.

Other Applications for Signal Jamming

Prisons aren't the only place where cell phone signal jamming is necessary. There are many instances where having access to a cell phone signal could pose a security risk, such as in government buildings, or violate policies, such as in a test taking facility.  

  • Airport Immigration
  • Casinos
  • Examination Rooms
  • Government Buildings