Jammers can be a useful tool in several situations, from blocking a friend's cell phone to protecting your privacy. These devices are lightweight and portable and can be carried in your pocket or backpack. The most common types of jammers are handheld, wall-mounted and portable. They are used to block cell phone signals from both the main and the...

A mobile phone jammer is a piece of equipment that blocks signals from cell phones and other wireless devices. Its primary use is to hinder criminals' communications and prevent the remote detonation of explosive devices. As public resentment towards mobile phone use in public places and the reckless invasion of personal privacy increased, the need...

A recent study revealed that a chirp jammer can disrupt GPS signals, allowing authorities to determine a vehicle's lane and time of passing through a detection gantry. Using a chirp jammer, this device can cause a 3.5 m path difference in a passing vehicle's GPS signal. While this may seem like an insignificant difference, the result is incredibly...