What is a GPS jammer? What kind of cars are GPS jammers used on? from dojammer's blog

1. What is a GPS jammer?

The GPS signal jamming system is designed to suppress the signals of the satellite navigation GPS system in the 1500-1600MHz range. The screen prevents GPS satellites from detecting all positions and positions of the vehicle through GPS, and the GPS jammer equipment will not interfere with mobile phones and other equipment. The GPS jammer range can be from 5 to 15 meters, which is enough to reach vehicles and buses, as the trackers are usually installed in the cab of the vehicle. After the mechanical equipment is connected according to the vehicle borrowing device, it immediately starts working and generates wireless noise (interference) in the range of 1500-1600mHz (L1/L2) within a radius of 15 meters.

Second, there are various types of GPS jammers.

1. For GPS positioning and navigation system, you only need a GPS jammer.

2. Dual-mode navigation: Internet precise positioning (mobile phone data signal precise positioning) navigation + GPS navigation. For this kind of navigation, you need GSMGPS Jammer.

3. Internet precise positioning (mobile phone data signal precise positioning) navigation. So you need a gsm jammer.

4.COMPASS system software, GLONASS system and Galileo system software.

234 These three systems are rarely used for civilian purposes.

3. Car GPS Jammer

GPS devices will all need a number card. The location information calculated by the GPS module is submitted to the mobile phone positioning server by the base station through this card for users to view. The jammer uses wireless radio waves to interfere with this card. The communication between the card and the communication base station ensures that the location of the GPS cannot be viewed by users.

4. Principle of GPS jammer:

Mainly by emitting wireless interference electromagnetic waves, it can invalidate the GPS locator within a specific radio band, creating the same magnetic induction environment as the device to achieve the purpose of blocking signals. Two ways to block GPS signals. 1: Immediately disconnect the two cables of the GPS server. Second: Go to the Electronic City to buy a GPS signal jammer, but you must first understand what signal tracking method the GPS in your car uses. There are only two methods of signal tracking: (1) Cell phone signal. (2) Immediate communication satellite tracking data signal.

Generally, most GPS tracking signals use mobile phone signals. GPS jammers also have an interference effect on vehicle navigation. The GPS used for vehicle navigation is the same as mobile phone signals and is easily affected by electronic interference. The signal The jammer can block all signals in a certain area, causing any communication equipment within the range to lose signals. However, such equipment also has disadvantages for the person who uses it. The signal jammer can only be turned on temporarily and cannot be turned on all the time for use. As long as he turns off the jammer, the GPS signal will be available again.