A detailed understanding of how the available jammers work is necessary to judge their effectiveness and limitations. also prides in the intimate maintenance support provided by it during the warranty and the entire equipment life cycle for the complete satisfaction of its esteemed customers. The range depends on the power amplifier and Antennas used and the total number of bands simultaneously active at a time. Can provide cover for military signals from 10km to 150km and for civilian signals it varies between 30km to 350km. For instance, a GPS jammer can confuse aircraft and other vehicle instruments, possibly causing mishaps.

So, gps jamming is a continuing threat both at home and abroad and a detailed understanding of how the available jammers work is necessary to judge their effectiveness and limitations. It will effectively protect a well-defined area from ground and sky threats while it will not, in any way, affect the normal operation of navigation services outside this area. The type of GPS jammer is Area Protection System against Satellite Navigated Hostile Threats which is a system designed to protect specific locations against missiles guided by GPS.

Using triangulation, GPS can deliver the location to the receiver within centimeters of its exact spot. This provides them the capability to cause the death of both civilians and security forces as well as the destruction of property and infrastructure giving them high visibility for their cause. The availability of UAVs or drones with GPS capability also provides the capability for terrorists to have surveillance of potential target sites for reconnaissance. These devices use the signal received from a minimum of three GPS navigational satellites or more to calculate the location information.

Most GPS Jammers are built for military uses, for instance, to confuse the enemy on where their exact location is or where the enemy's guided missiles or bombs will fall.GPS finds major use in most equipment and systems to provide location information instantly both in civilian and military applications. Some jamming signal state that they are only for civilian GPS jamming only; however, some military equipment must first sign onto the civilian GPS radio frequency in order to gain access to the military GPS frequency.

The use of GPS Systems helps terrorists to navigate both on land in mountains, jungles or desert terrain thereby providing them with a high degree of mobility and action capability. While gsm signal jammer have been created (specifically by the government, military organizations and spy or privacy gadget companies), most civilians do not have the technical capabilities to create their own homemade devices. However, there are a few civilian uses for jamming GPS signals including the ability to conceal oneself or one’s vehicle in the case that it is being tracked by a GPS receiver.

There is extensive use of GPS in military equipment and systems both on man-pack and vehicular basis enabling forces to move accurately during operations both during day and night. Jammers constitute an enemy force, and as the Chinese General Sun Tzu stated in the Art of War more than 2,000 years ago, battles will be won by knowing your enemy. Because GPS is nothing more than radio waves, these waves can be jammed, though technical devices and expertise are needed for that purpose. It is much more difficult than just blocking a radio signal with basic radio interference.

This is very useful to protect important locations like power generation facilities, national government or military headquarters or other critical sites from attack using GPS guided weapons like missiles or bombs. Nevertheless, a certain number of wifi jammer are in the hands of individuals around the world and they continue to be available from manufacturers and suppliers in certain countries. This information will also help in developing countermeasures that could be incorporated into GPS receivers to limit the impact of jammers. It should be noted that most GPS jammers are illegal to build or use in many countries or localities due to the potential for misuse.

The type of signal cellphone jammer and their utilization can be customized depending on customer requirements and the deployment envisaged. A team of researchers from Cornell University and the University of Texas at Austin reports on their analyses of the signal properties of 18 commercially available GPS jammers. In 2009, outages of a Federal Aviation Administration reference receiver at Newark Liberty International Airport close to the New Jersey Turnpike were traced to a $33, 200 milliwatt GPS jammer in a truck that passed the airport each day.

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