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If the mobile signal jammer is installed in an outdoor environment, it must take waterproof and lightning protection measures. Generally, it is
recommended to select a special installation box for the cell phone signal jammer. The louvered ventilation position (enhanced heat dissipation), the
opening on the top of the box extends out of the antenna of the mobile phone shield (the hole is sealed with hot melt adhesive), and the bottom of the
box has a power input hole and a diversion hole (to prevent water accumulation).
When the mobile phone signal jammer (together with the installation box) is installed outdoors, such as installed on the outer wall of the building,
it is necessary to take lightning protection measures. Especially in thunderstorm-prone areas, you should pay more attention!
The main unit of the mobile phone signal jammer is installed on the top of the box, the antenna extends out of the box (if it does not extend out of
the box, the shielding effect will be greatly reduced), and the power adapter should be placed in the middle and lower part of the box.
Lightning protection measures are actually to install lightning rods on the shielding device. If there is no ready-made lightning rod to buy, you can
make your own lightning rod. The method is as follows:
Choose 3-4 steel bars with a diameter of 5-10mm and a length of 50cm, sharpen one end into a needle shape, and weld the other end together to form a
"Y" shape. The welded end is connected to the ground with an iron wire with a diameter of 2-3mm (The iron wire is protected by PVC pipe penetration), and
the end of the iron wire to the ground is connected with an iron strip. The iron strip is generally about 50-100cm long and 2-5cm wide, and is deeply
driven into the ground. If the iron strips are hard to find, you can use 10mm steel bars instead.
The lightning rod is installed 30-50cm above the antenna of the mobile phone signal jammer. The lightning rod (including the grounded steel wire)
cannot be in contact with the mobile phone jammer or the installation box, and the distance should be properly maintained.
The main functions that GPS satellite positioning system can achieve in civilian use are:
Call traffic command function; the command center can monitor the running status of vehicles in the area and reasonably dispatch the monitored vehicles. The command center can also communicate with the tracked target at any time to implement management.gps jammer can be detected and located by mobile direction finding systems. Spectral analysis to determine the duration and signal type of interference can also be used to indicate whether the interference is accidental or intentional.
Route navigation function; providing travel route planning is an important auxiliary function of the car navigation system, which includes automatic route planning and manual route design. The automatic route planning is that the driver determines the starting point and destination, and the computer software automatically designs the optimal driving route according to the requirements, including the calculation of the fastest route, the easiest route, and the route with the least number of highway sections. In manual route design, the driver designs the starting point, ending point and waypoint according to his own destination, and automatically establishes a route library. After the route planning is completed, the display can display the designed route on the electronic map, and at the same time display the vehicle running path and running method.
Vehicle tracking function; the actual position of the vehicle can be displayed in real time using GPS and electronic maps, and can be zoomed in, zoomed out, restored, and changed at will; it can move with the target to keep the target on the screen; Vehicle, multi-screen simultaneous tracking. Use this function to track and transport important vehicles and goods.
Information query function: Provide users with databases of major objects, such as tourist attractions, hotels, hospitals, etc., users can display their positions on the electronic map. At the same time, the monitoring center can use the monitoring console to query the location of any target in the area, and the vehicle information will be displayed on the electronic map of the control center in digital form.
As 5G systems move into frequencies used by GPS, interference is likely to become more widespread. The key point is that civilian signal jammers are completely open, they are not encrypted, they are not authenticated, they are completely open and completely immune to spoofing attacks.
GPS satellite positioning system has added a lot of convenience to our life, but it has also brought some troubles, which even threaten the personal safety of individuals.
1. The location information of the vehicle can be easily obtained by others; it is only necessary to load a specific GPS positioning device on the vehicle body to obtain the vehicle location information in real time. This function is widely used in the automobile transportation industry and the financial loan industry. In fact, this is also certain. Personal privacy is violated to a certain extent.
2. Personal location information is also easy to steal; current location trackers have become smaller, lighter, and more accurate, making it easier for some criminals to steal and spy on the location of others. Health status.
Professor Langdon checks GPS tracker in The Da Vinci Code
The GPS tracker featured in the 2006 movie once raised questions from professionals—at the time, such a small tracker was impossible.
As technology advances, the smallest GPS tracker is only a centimeter long, yet its performance is more responsive than ever. Ultra-small GPS trackers will soon go from fiction to reality.
The evolution of technology toward smaller and more sophisticated technologies has made GPS tracking more useful for personal privacy theft in addition to commercial espionage.
In order to combat the trouble of tracking and positioning, there is gps jamming.
GPS jamming is a relatively simple technique that requires only generating an RF signal strong enough to overwhelm GPS satellite transmissions. The subject of a GPS jamming attack will immediately realize that there is a problem because the system will not be able to generate geolocation results.
MIT graduate student Limor Fried called her portable jammer a "bubble." GPS cannot enter this bubble for the purpose of reclaiming private space.
It's not actually a bubble, it will interfere not only with private spaces or cars, but also with innocent GPS receivers for miles around you. People worried about cracking down on tracking probably won't be uncomfortable with opening the radio bubble.
No matter what the goal of the portable jammer is, the device doesn't treat it differently, so there's usually additional collateral damage. Air traffic control (ATC), search and rescue operations, power grids and mobile phone services are all vulnerable to GPS interference.
The London Stock Exchange suffered repeated GPS outages, affecting the time stamping of financial transactions. In 2007, an outage in GPS communications at the Port of San Diego prevented residents of the city from withdrawing cash from ATMs, and it took them three days to determine the cause of the ship's drill.
While GPS jammers can cause minor disturbances, such as signal loss, they can also pose a large risk to public safety. For instance, jammer gps cannot distinguish between types of communications and may block ingoing or outgoing calls from emergency responders. Additionally, the devices could block more than calls and disrupt all communications within a broad frequency range.
The Russian military is buying up jamming devices which it plans to mount on cell phone towers. The idea behind it is simple — the Kremlin could switch on the signal jammer, known as Pole-21 to confuse American GPS guidance.
Russia has about 250,000 cellular base stations.
As more industries -- like law enforcement and transportation -- rely on GPS-enabled devices, jamming has the potential to interfere with business-critical operations and data. In fleet management tracking, GPS information can be connected to data such as fuel use, driving behavior, engine health, vehicle synchronization and safety metrics.
Therefore, signal jammer can disrupt all of this information and cause major outages.noted that the devices appear to be part of a larger push by Russia to prepare itself for the possibility of major conflict.
When we talk of navigation, GPS provides accurate and easy navigation like never before, GPS provides an accuracy that neither of others systems can provide. No matter where on earth you are using a GPS receiver you navigate easily and accurately.
GPS jammers were originally developed by the military to mislead enemies about their geographic location and targeting. These devices are then suitable for consumers who want to ensure their privacy or prevent tracking.
However, without the proper technical knowledge or in the wrong hands, GPS jammers can potentially disrupt communications by disrupting communications.
These days most of our daily routine and critical sectors, like military and aviation industry are highly dependent on GPS navigation.It is shown that jamming can be detected at almost every stage of GPS receiver. The case of intermediate power jamming is emphasized the most, since a GPS receiver is still able to present navigation, which is based upon wrong pseudoranges.