Jammer is a device designed to interfere with radio communication or other electronic devices. The following is a detailed explanation of the jammer:

Working principle:

The jammer contains one or more transmitting devices that can generate targeted radio signals or electromagnetic waves.

These signals or electromagnetic waves will be located within the frequency range of the target device being used. Its characteristic lies in intentional interference, destruction, or obstruction of the original communication signal.

The jammer may use different modulation methods, such as amplitude modulation (AM), frequency modulation (FM), etc., to simulate or interfere with the signal of the target communication system.

The antenna system of the jammer will emit these intentionally interfering signals, which can be directional, aimed at specific communication systems or locations, or broadcasted, with a wider range of impact.

Type:

Radio jammer:
Equipment designed to interfere with radio communication, as described above.

Electrical interference device:
By emitting electromagnetic waves of a specific frequency to interfere with the electromagnetic signal of the target device, it affects its normal operation.

Other types:
It also includes various types of jammers such as radar type, ultrasonic type, infrared radiation type, radio frequency pulse type, laser irradiation type, electromagnetic induction, and electronic fence, all of which have their own advantages and disadvantages in application.

Application scenario:

Confidentiality field:
Used to suppress signal transmission and prevent information leakage.

Public places:
Used to restrict and control wireless communication, maintain safety and tranquility.

Place monitoring:
Interference with cameras, infrared sensors, and other equipment to ensure safe operation of the equipment.

In the field of war:
Disrupting enemy communication serves as deception and cover.

Legal regulations:

In many countries and regions, the use of radio jammers is illegal and may violate relevant laws and regulations.

This is because its interference behavior may have irreversible effects on critical communication systems, emergency communications, or other important wireless communications.

Market situation:

According to information on the reference website, there are various brands and models of jammers on the market, with prices ranging from a few hundred yuan to several thousand yuan.

These jammers have different functions and characteristics, and are suitable for different application scenarios.

Jammer is a powerful electronic device, but its use requires compliance with relevant laws and regulations, and careful consideration of its potential consequences.