Will the mobile phone signal jammer interfere with the car remote control?
Sometimes we will receive calls from individual customers who want to purchase mobile phone signal jammers from us, and will specifically confess that they need to interfere with the car remote control. We will directly refuse such requests. Because in most cases, those who want to interfere with the signal of the car remote control are generally not with good intentions, and the country has already announced relevant restrictions, strictly prohibiting various sales platforms from selling interference products of car remote controls . So will the mobile phone signal jammers we usually produce interfere with the car remote control?
If you want to know whether it can interfere with the car remote control, you only need to know which communication frequencies the car's remote control device uses. On the whole, although there are many car manufacturers and different models, the frequency of the remote control used for the car is not much different. Most of them use the 433MHz remote control frequency band, and a small part of the car remote control will use 100MHz- Part of the frequency band between 470MHz. When the interference signal of the cell phone signal jammer includes the above-mentioned remote control frequency bands, it will interfere with the car remote control.
The normal configuration of the mobile phone signal jammers we produce is only for conventional signals such as mobile phones, WIFI/Bluetooth, etc. But there are also some mobile phone signal jammers used in the examination room. In order to interfere with the possible wireless cheating tools at the same time, some mobile phone signal jammers in the examination room will be equipped with 100MHz-470MHz signal interference modules. If the car is parked If there is such an examination room-type jamming device within a short distance of the location, the remote control device of the car is very likely to be jammed.
In addition, there may be a phenomenon of interference to the car remote control. For example, there is a mobile phone signal jammer near the car. However, the performance indicators of the interference device are not good enough, especially the filter of the power amplifier module and the antenna. If the isolation degree is not done well, it will cause frequency multiplied signals to appear in the frequency band of some interference signals in the equipment. Let's take the 800MHz interference module of CMDA standard that must be configured in a mobile phone signal jammer as an example. Under normal circumstances, the output frequency range of this module is 865MHz-885MHz. When the 1/2 frequency multiplication phenomenon occurs, the 865MHz Divide the frequency of -885MHz by 2, and you will see that the result is exactly covered on the 433MHz frequency band of the car remote control.