The commercial hand-held cell phone jammers block frequencies between 800MHz to 1900MHz within a 30-foot range and carried can be used discreetly in a pocket or a handbag to block all cell phones in a small area. Some academic institutions are currently rumored to be seeking the authority to jam cell phone transmissions because of “academic dishonesty”. One could easily use one of these cell phone jamming devices in a public space such as an Internet cafe as well.
Prisoners secretly use has been the biggest problem facing prison. So how to effectively prevent this behavior? The warden gave us a good answer.
The Department of Justice released a report that declared a solution to prevent criminal activity from happening within prisons: it successfully tested a cell phone jammer that would block mobile signals from smuggled cell phones inside a Maryland prison.
Throughout the corrections world the news spread fast. For South Carolina Corrections director Brian Stirling, the news affirmed his beliefs: to stop the flood of mobile phones streaming into prisons, jamming technology was the best, cheapest, and most efficient way to go.
“The results indicate the potential for localized impact of this micro-jamming technology,” Williams said. “That is an encouraging sign that brings us closer to a solution that will make our communities safer and help prevent the continuation of criminal activity from inside prison walls.”
Apart from acting as an effective tool to curb cheating during examinations, these devices can protect one from various security threats and criminal activity. This device adds an extra layer of security to national and foreign delegates; prove useful to maintain silence in conferences and seminars; restrain prisoners from maintaining contact with outside world; and for many such activities.