The Importance of Proper Installation of Cell Phone Signal Jammers

Cell phone signal jammers have become increasingly popular among customers who wish to block unwanted signals. However, many customers mistakenly believe that the installation of these devices is simple and straightforward. This article aims to address the misconception surrounding the installation of cell phone signal jammers with omnidirectional antennas and highlight the importance of proper placement.

The Misconception:

The majority of customers purchase cell phone signal jammers equipped with omnidirectional antennas due to their belief that these antennas provide signal coverage in all directions. Consequently, customers often imagine the signal coverage area as a spherical region emanating from the jammer, with the jammer itself at the center. This misconception leads customers to assume that the installation process is straightforward and does not require careful consideration.

Installation Considerations:

The installation of cell phone signal jammers with omnidirectional antennas cannot be arbitrary. Several factors need to be taken into account. In smaller spaces, such as rooms with an area of a few dozen square meters, achieving complete signal blocking is relatively simple. In such cases, the jammer can be installed in any corner or along any wall, as the signal coverage distance is sufficient to cover the entire room.

Challenges in Larger Spaces:

However, in larger spaces ranging from 100 to 300 square meters, the length and width often exceed 10 meters, and even reach around 20 meters. Most cell phone signal jammers, including those designed for 5G signal blocking, have an effective blocking radius of 10 to 20 meters. Installing the jammer in a corner of the room may result in a blind spot in the diagonally opposite area, where the jammer’s signal range cannot reach.

Solving the Issue:

To address this problem, the most effective solution is to adjust the installation position of the cell phone signal jammer towards the center. By utilizing the omnidirectional antenna’s signal coverage characteristics, the distance between the jammer and the blind spot can be reduced. This ensures that the signal blocking is sufficient to cover the diagonally opposite area while maintaining an adequate signal coverage strength in the original location.


Proper installation of cell phone signal jammers is crucial to ensure effective signal blocking in various spaces. While smaller rooms may not require meticulous placement, larger spaces demand careful consideration to avoid blind spots. By understanding the limitations of omnidirectional antennas and adjusting the installation position accordingly, customers can maximize the efficiency of their cell phone signal jammers and achieve the desired signal blocking results.