Will mobile phone signal jammers make car remote control keys invalid?

Will a cell phone signal blocker disable the car remote key?

During the college entrance examination, there were reports that someone was using a cell phone signal blocker near the examination room. Some car owners and 4S shop staff received information that these blockers would interfere with the vehicle data signal, causing the car door to be unable to be used normally or opened. At this time, the mechanical device key can be used to open the car door.

These measures are to prevent “emergencies” during the examination. Some candidates may try to cheat using high-tech equipment. Therefore, most examination rooms have installed cell phone signal blockers around and inside the examination room, but these signal blockers will also interfere with nearby vehicles and may affect the function of smart keys.

To understand why the key is ineffective, we must first understand the characteristics of the cell phone signal blocker used in the examination room:

1. It can block frequencies between 20-6000MHz and can adjust the frequency at any time to avoid being detected by police equipment.
2. The blocker is equipped with a dedicated drive power generation device and an automatic control system to minimize the indoor space occupation and avoid the generation of organic waste gas and noise.
3. The jammer roof antenna has an electric tilt mechanism that can be adjusted quickly and can be used with VIP or leadership transport teams at speeds of up to 100 km/h to prevent remote control time bombs from detonating. When not in use, the antenna can be put down and used for other tasks.
4. The modular plug-in design facilitates future adjustments to the frequency band and output power, as well as daily maintenance and repairs.
5. The jammer has a DDS control module, which can adjust the power and frequency band through the mobile phone software, including setting special communication bands in emergency situations.

Considering the above characteristics, the Cell Phone Jammer in the examination room can continuously block all frequencies between 20-6000MHz, which includes the frequency range used by car remote control keys. Therefore, when these jammers are activated, the car remote control key may be affected.

However, there is no need to worry. If the smart car key fails or malfunctions due to the jammer, just use the mechanical device key to open the car door. Put the remote control key near the one-button start switch (near the running sensor), lightly press the brake, and then start the engine as usual to start the car.

Please note that the vehicle navigation system positioning may be temporarily delayed and the recorder may not be able to receive the radio station. But these problems are resolved once the car is away from electromagnetic interference.

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