Will the mobile phone signal jammer in the examination room make the remote control key of the car fail?
The new year has begun, and the annual college entrance examination is about to begin. In the past few days, some car owners and 4S store personnel have received a strange message. The news is probably that the mobile phone signal jammer will be used near the test site in the near future, which will seriously affect the vehicle data signal, causing the car door to not work normally or cannot be opened. For car doors, the solution is to use a mechanical device key to open the door.
The emergence of this situation is actually taking into account that this is the period of the college entrance examination to prevent "emergencies". For example: now there are many candidates who do not abide by the rules to use high-tech equipment to cheat, so now almost all college entrance examination centers will install cell phone signal jammers around and even inside the examination room. This signal shielding device will also cause signal interference to driving or parked nearby vehicles, which may lead to the failure of the smart key.
Why do keys fail? First of all, we need to understand the characteristics of the mobile phone signal jammer in the examination room.
(1) All frequencies between 20-6000MHz can be blocked, and the frequency can be adjusted anytime and anywhere, bypassing the inspection frequency of police equipment.
(2) Special driver power generation device/automatic control system for supporting facilities of mobile phone signal jammer in the examination room, the rear seat is reserved, no indoor space is occupied, and organic waste gas and noise will not be generated.
(3) The antenna on the roof adopts the electric tilting mechanism to realize quick adjustment. When the mobile phone signal jammer in the examination room is performing its task, it can be interspersed with the VIP or leader transport team at a speed of 100 km/hour to prevent robbers from detonating the remote control time bomb. If the mobile phone signal jammer in the examination room does not perform tasks, the antenna can be lowered to hide, so as to facilitate other tasks.
(4) The modular plug-in design provides assistance for the later frequency band and output power adjustment of the mobile phone signal jammer in the examination room, and at the same time facilitates daily maintenance and repair.
(5) The mobile phone signal jammer in the examination room is equipped with a DDS control module, which can directly change the module power and frequency band through the mobile phone software of the main control chip, and can set a special communication frequency band in an emergency.
With the above characteristics, it is not difficult to find that the mobile phone signal jammer in the examination room can continuously block all frequencies between 20-6000MHz. The frequency used by the car remote control key is also within this range. Therefore, when the mobile phone signal jammer in the examination room is turned on, the car remote control key will also be affected.
However, there is absolutely no need to worry about this matter. When the smart car key is affected and becomes invalid or out of order, please don’t worry. If this happens, please use the mechanical device key to open the car door, and put the remote control key near the one-button start switch (at this time The distance between the key and the running sensor is near), then lightly step on the brake normally, and then start the motor, the car can start;
There will be a delay in the positioning of the vehicle navigation system, and the tape recorder cannot receive the station temporarily. Please don’t worry, everything can be restored when the car is driven by electromagnetic interference.