Definition and Function:

GPS jammer, also known as GPS signal jammer, is a device that emits electromagnetic waves of a specific frequency to interfere or block the normal function of the GPS receiver, rendering the positioning system ineffective.

The main functions include:
Effectively prevent being tracked by GPS satellite positioning, protect travel privacy and information confidentiality;
Only interfere with GPS satellite signals, without affecting normal phone answering;
Vehicle mounted sustainable use, suitable for long-distance bus drivers and some people who do not want to be tracked by GPS signals.

Technical parameters:

Input voltage:
Usually 12V or 24V, suitable for use in large and small cars.
Working hours:
Directly plug into the car cigarette lighter for long-term power supply.
Operating radius:
Depending on the product, the effective coverage range (shielding radius) is between 5-25m.
Product size and weight:
For example, a certain product has a size of 238mm and a weight of approximately 50g.
Working temperature and humidity:
The working temperature range is -30~60 ℃, and the relative humidity is 5~95%.

Performance characteristics:

Portability:
Small size, light weight, and easy to carry.
Targeted:
Interference is only applied to GPS satellite signals and does not affect other wireless communication devices.
Persistence:
The in car model is sustainable and does not require frequent battery replacement or charging.
Stability:
It can work normally within a wide range of temperature and humidity.

Application scenario:
Mainly suitable for situations that require privacy protection or avoidance of tracking, such as long-distance bus drivers, private vehicles, etc.

Potential impact:
The use of GPS jammers may cause interference to systems that rely on GPS positioning (such as navigation systems, position tracking systems, etc.), affecting normal use.
In some cases, such as in the aviation industry, unauthorized GPS interference may seriously affect flight safety.

Legal and Moral Issues:
The use of GPS jammers may involve legal and ethical issues, especially in interfering with public or commercial GPS systems without permission.

GPS jammers not only provide privacy protection, but also have certain potential risks and usage restrictions. Before use, it is important to fully understand its performance characteristics, application scenarios, and potential legal and ethical issues.