For communication jammers to shield wireless signals, the requirements are very strict. Usually signal blocker require 20-6000MHz seamless shielding, including but not limited to remote control bombs, walkie-talkies, mobile phones, drones, etc. In order to ensure that the communication jamming car is foolproof when it is used to shield the wireless signal, it can perfectly complete the task assigned by the superior, and in the case of no casualties, the requirement for the jamming car to shield the wireless signal of the hand is extremely high. So, what are the factors that can affect the shielding effect of jamming cars?

1. The transmit power of the radio frequency module: the greater the transmit power of the radio frequency module, the greater the shielding range, but the bandwidth of the transmit signal of a single module of a signal of a communication interference vehicle is too wide, which will also affect the shielding effect. If the shielding effect is particularly obvious, first select a high-power radio frequency module, and secondly allocate the bandwidth of the frequency of the signal transmitted by a single module reasonably, so as to maximize the shielding range through reasonable bandwidth allocation.

4 Antenna Portable CDMA GSM 3G Cell Phone Jammer
2. Use the signal strength of the scene: The signal strength refers to the strength of the mobile phone signal. The signal strength of the mobile phone depends on the distance from the mobile phone base station, and the strength of the output signal of the module of the communication jamming vehicle can be controlled, which can be obtained through the spectrum analyzer. Measure the distribution of the spectrum, and then maximize the shielding range by setting up specific modules. Of course, you can also negotiate with the operator in advance to reduce the signal strength of the mobile phone on site. The signal strength of other remote controls depends on the distance from the signal source to the suspected explosive. The distance between them is unpredictable, so the focus should be on shielding the remote control signal, and the shielded wireless signal module of the communication interference vehicle should be set to seamless interference.

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