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Vehicle GPS technology can be disrupted by what's known as a GPS jammer or completely blocked. At short or long term, electromagnetic waves overlap the signals of the transmitter, making them unusable. To do this, the jammer must simply be near the GPS device. However, the use of jammers is generally prohibited in Germany. https://www.jammer-tech.com/gps-jammer.html However, such disruption must be distinguished from more complex GPS spoofing, which disrupts not only transmission but also what the data completely manipulated transmits. Employees Feel Monitored Telemetric systems are used by an increasing number of fleets for a long time, with which daily work processes are increasingly digitalized. This includes mainly GPS localization. Their use can bring many advantages to both the company and employees. However, it sometimes happens that employees feel constantly monitored with a telemetrical system in their vehicle: thanks to integrated technology, their location is visible at all times and all routes traveled are recorded precisely. In particular, those who were previously authorized to freely use a company vehicle feel monitored 24/7, restricted in their personal freedom, and often treated unfairly. At this point, however, they have little options. Although they must be informed of the use, they can normally not reject the technology. It mainly serves the common good and has added value for the entire company. GPS should not be used to monitor employees - especially after work or on weekends. The same applies to cell phone jammers, which must be used reasonably https://www.jammer-tech.com/mobile-jammer.html As already mentioned, the use of jammers is punishable and discouraged. Sooner or later, you'll notice that technology doesn't work correctly. This can even lead to major problems within the fleet or company. In their own interest, employees and fleet managers should note the following points: Avoid disruptions if possible Regularly check location/state of material Take a look at online portal Compare data such as mileage and time Signal discrepancies if necessary Protection against GPS Jammer https://www.jammer-tech.com/Stop-GPS-Tracking.html There is almost no complete protection against GPS jammer. There is technology that can reduce the effect. However, this is expensive and complex and is therefore used at most in areas such as the army or aviation. For medium-sized companies, they are however impractical and discouraged. If, as a fleet manager, you notice inconsistencies or defects in GPS technology, you must absolutely investigate and, finally and above all, search for jamming stations. However, a malfunction caused by criminal energy, for example in case of theft or bad use of a vehicle, cannot be avoided. Regular checks on material and software, as well as quick action in case of a problem, can generally prevent malfunctions. Open manipulation of technology also leaves employees with a better feeling. It's just as important to use car jammers correctly https://www.jammer-tech.com/car-jammer.html