1. What is a GPS jammer?

The GPS signal jamming system is designed to suppress the signals of the global satellite navigation GPS system in the 1500-1600MHz range. Jammers make it impossible for GPS satellites to monitor the location of cars and all vehicles via GPS, and gps jammer devices will not interfere with cell phones and other devices. The GPS jammer range can be from 5 to 15 meters, which is enough for cars and buses as the trackers are usually installed in the cab inside the car. After initiating the connection via the car's cigarette lighter, the device starts working immediately and generates radio noise (interference) in the range 1500-1600 MHz (L1/L2) within a radius of 15 meters.

2, there are different types of GPS jammers.

The GPS positioning and navigation system only requires a GPS jammer.

Dual-mode navigation: network positioning (mobile phone signal positioning) navigation + GPS navigation. For this kind of navigation you need GSM GPS jammer.

Network positioning (mobile phone signal positioning) navigation. For this you need a gsm jammer.

COMPASS system, GLONASS system and Galileo system.

These three systems are rarely used in civilian applications.

3. Car GPS Jammer

GPS devices all require a phone card. The current location information calculated by the GPS module is uploaded to the positioning server by the communication base station through this card for user query. The jammer uses radio electromagnetic waves to interfere with the connection between the card and the communication base station to achieve The GPS location cannot be queried by the user.

4. Working principle of GPS jammer:

Mainly by releasing radio interference waves, it can invalidate the GPS locator within the specified electromagnetic band, forming the same electromagnetic environment as the device, thereby blocking the signal.

Two methods to block GPS signal. First: The direct method is to remove the two cables of the GPS host. Second: Go to the electronics market to buy a GPS signal jammer, but first understand what signal tracking method the GPS in your car uses.

There are only two signal tracking methods: (1) Cell phone signal. (2) Direct satellite tracking signal.

Generally, most GPS tracking signals use mobile phone signals. GPS jammers can also interfere with car navigation. GPS used in car navigation is the same as mobile phone signals. It is easily interfered by electronic devices. The signal jammer can block the signals within a certain range. The signals are blocked, causing all communication devices within range to lose signals. However, such equipment also has disadvantages for the user. The signal jammer can only be turned on temporarily and cannot be turned on forever. As long as he turns off the jammer, the GPS signal will be available again.