In the physics world, interference means that two or more waves meet in space. Is this the same as the WiFi blocker we use?
Jammer-MartNovember 2019
In the physical world, interference means that two or more waves meet in space and form a pattern determined by the frequency and direction of each wave. The easiest way to understand wave interference is to imagine throwing two stones on the lake. Each stone produces a circular wave shape in the water, and when two waves meet, they merge. This is a short animation of wave interference in action: According to classical physics, almost the same thing happens when three-dimensional waves such as sound waves, electromagnetic waves, etc. meet.
Suppose we have a smartphone. These devices typically operate in the frequency range from a few hundred megahertz to several gigahertz (this means that their waves vibrate millions to billions of times per second, making them radio waves). To interfere with a cell phone, radio waves from the cell phone must be used to create a destructive interference pattern. A wifi jammer will fill a radio wave that exactly matches the frequency of the phone in a room within a certain radius. The only difference between these two waves is that they are out of phase. The product of this activity is an RF wave with white noise, which is destructive to mobile phone waves. Therefore, a "No Signal" message will be displayed for each mobile phone in the relevant area.
In the physical world, interference means that two or more waves meet in space and form a pattern determined by the frequency and direction of each wave. The easiest way to understand wave interference is to imagine throwing two stones on the lake. Each stone produces a circular wave shape in the water, and when two waves meet, they merge. This is a short animation of wave interference in action: According to classical physics, almost the same thing happens when three-dimensional waves such as sound waves, electromagnetic waves, etc. meet.
Suppose we have a smartphone. These devices typically operate in the frequency range from a few hundred megahertz to several gigahertz (this means that their waves vibrate millions to billions of times per second, making them radio waves). To interfere with a cell phone, radio waves from the cell phone must be used to create a destructive interference pattern. A wifi jammer will fill a radio wave that exactly matches the frequency of the phone in a room within a certain radius. The only difference between these two waves is that they are out of phase. The product of this activity is an RF wave with white noise, which is destructive to mobile phone waves. Therefore, a "No Signal" message will be displayed for each mobile phone in the relevant area.