Although there are many websites that actively sell “cell jammers” or “signal blockers” to disrupt cellular communications and create spontaneous “quiet areas” in cars, schools, theaters, restaurants, and other places, using these devices is indeed a violation Federal law. “We remind and warn consumers that using jammers or similar devices to deliberately block, disrupt or disrupt authorized radio connections (such as cell phones, police radar, GPS and WiFi) is against federal law.”
Except for the occasional one-off case where a Florida rogue science teacher took the matter into his own hands, there seems to be no big conspiracy in schools that use cell wifi jammer to prevent students from calling or texting in class. If anything, it is in the best interest of school officials to maintain cellular communications for safety and responsibility reasons.
If interference is not the most common cause of poor cell phone reception in classrooms, then why are school cell phones poorly received? What can I do to signal at school? When it comes to weak cell signals, students and teachers are not alone. This year, most of the country’s 273.8 million mobile phone users will have poor cellular connectivity at some point. However, schools may be more susceptible to poor or unreliable cell signals than other buildings.
According to a report by the Green School Center, by December 2017, 2,000 K-12 schools will be LEED certified. An important milestone, especially for the introduction of renewable energy on site and the use of low-emission materials to save costs and increase efficiency. Disadvantage? In many LEED-certified school buildings, energy-saving windows, foam-infused insulation materials and metal structures are also very effective in blocking incoming cell signals. In new schools in new areas or across the country, the distance to the nearest cell phone tower (not to mention natural and man-made barriers) will also affect the signal in the building.