What is the interference effect of a car-mounted mobile phone signal jammer while driving? from dojammer's blog

A customer asked us: When performing the task of fleet safety protection, what is the interference effect of the vehicle-mounted cell phone signal jammer while driving? Will the actual interference effect be affected by the driving speed of the vehicle?

The above-mentioned application scenarios are usually targeted at government leaders or important VIP customers. They are equipped with a vehicle-mounted mobile phone signal jammer in the fleet where their vehicles are located, starting from the departure of the fleet until they arrive at a safe destination. During the entire journey, regardless of whether you encounter parking, traffic jams, low-speed driving, high-speed driving, etc., the on-board mobile phone signal jammer always keeps working continuously to ensure that the entire fleet, especially important people, are safe and sound. Vehicles can be completely and reliably protected. Prevent and prevent terrorists from detonating roadside bombs, car bombs, etc. through remote controls.

When a vehicle-mounted mobile phone signal jammer is parked (stationary) or driving at low speed, it is relatively easy to detect its interference effect on various signals. However, if it is in a convoy or driving at high speed, its effective interference range will still remain unclear. Change?

Based on our past experience in delivery acceptance and comprehensive testing, the interference effect of the vehicle-mounted mobile phone signal jammer under high-speed driving (vehicle speed ≥ 100Km/h) is slightly lower than the test results when stationary, and the magnitude of the decrease is About 10%~20%, the overall impact is not big.

However, customers need to be reminded that the interference distance and effect of car-mounted signal jammers will be affected by various factors for different signal types. For example: for remote control or walkie-talkie signals, etc., the difference in test results is not big when driving at low speed and high speed. For mobile phone signals of various standards, the difference is more obvious. This is mainly because the interference distance of the vehicle-mounted mobile phone signal jammer to the mobile phone signal is closely related to its distance from the mobile phone base station. When tested in a stationary state, the test results It is relatively stable. When driving at high speed, due to constant passing of base stations along the way, the mobile phone will also switch base station signals due to the distance from the base station and intermittent switching, resulting in the strength of the mobile phone signal always changing. Therefore, when the vehicle-mounted mobile phone signal jammer is driving, the interference distance to the mobile phone will always be in a dynamically changing state.