4G jammer

How 4G jammers work

The 4G signal jammer is designed for 4G signal communication. The basic principle is to send strong jamming signals to the 4G frequency band. This jamming signal blocks data transmission by covering the normal communication signals between the base station and the user device. The signal of a 4G jammer is usually a random signal that aims to interfere with the modulated signal of the 4G network so that the receiving device cannot decode it normally. In practical applications, 4G jammers adjust certain jamming signal frequencies according to the 4G frequency band in the target area and transmit high-power signals through the antenna. The strength of these jamming signals is sufficient to mask or suppress normal communication signals and thus shield the 4G network.

4G signal

4G (the fourth generation of mobile communications technology) is a globally widespread high-speed mobile communications standard that is mainly based on the LTE technology based. 4G networks transmit data via radio waves and are characterized by high speed, low latency and high capacity. The operation of 4G networks is based on a number of specific frequency bands such as 800 MHz, 1800 MHz, 2600 MHz, etc. These frequency bands define the propagation range and quality of 4G signals. Bidirectional communication between base stations and user devices modulates wireless signals into a form that can transmit large amounts of data. This modulation method usually uses OFDM (Orthogonal Frequency Division Multiplexing) technology, which can effectively utilize spectrum resources, reduce interference and improve transmission efficiency.

The working process of the 4G signal jammer

The working process of a 4G signal jammer can be divided into several key steps. First, the jammer scans the 4G signal frequency band in the target area to determine the specific communication frequency range. Then, the 4G jammer generates jamming signals that correspond to these frequency ranges. The strength of these signals is usually higher than normal 4G communication signals to ensure effective coverage of the target area. Finally, the interfering signal is radiated into the air via the antenna and overlaps with the normal communication signal, preventing its original modulation and decoding process. This interference effect can cause cell phones and other devices to be unable to connect to the base station, resulting in a "no signal" or "network unavailable" condition.

The interference radius of a 4G signal jammer usually depends on its transmission power and antenna design. Small portable jammers may have an effective range of only a few meters and are suitable for personal use or use in small venues. High-power jammers can cover dozens of meters and are suitable for corporate halls, prisons or other large-scale venues.

The 4G jammer protects your information security

The widespread application of 4G networks has made smartphones, Internet-of-Things devices, etc. extremely popular in the office, entertainment, security and other fields. However, in some scenarios, the presence of 4G signals can lead to problems such as privacy breaches, unauthorized communication or information security risks. To solve these problems, you can use a 4G jammer. 4G jammers have many possible applications. For example, jammers can protect confidential information in private areas and prevent data leaks. In some important meetings or highly confidential activities, 4G jammers can block the intrusion of external wireless signals and ensure communication security at the venue. In addition, 4G signal jammers are used at some exam venues to prevent candidates from using cell phones or other wireless devices to cheat, thus maintaining the fairness of the exam.