6 points to note before buying a mobile phone signal jammer |...

6 points to note before buying a mobile phone signal jammer

Posted 2025-08-16 07:05:15

To ensure that the selected shielding equipment truly meets the use needs and has safety and compliance guarantees, please be sure to pay attention to the following points:

1. Clarify the use location and coverage area

First, confirm the use environment (such as classrooms, conference rooms, prisons, examination rooms, etc.) and the space range that needs to be shielded, so as to select products with appropriate power and antenna configuration to avoid shielding blind spots or power waste.

2. Confirm the type of signal to be shielded

Currently, the mainstream shielding frequency bands include:

Mobile communication: 2G / 3G / 4G / 5G

WiFi network: 2.4G / 5.1G / 5.8G

Device that supports the required frequency band should be selected according to the actual communication environment and control requirements. If necessary, a full-band signal jammer can be selected.

3. Check whether there is a signal enhancement source in the surrounding area

If there is a communication base station tower, indoor signal amplifier or micro base station near the use location (within about 500 meters), it may affect the shielding effect. It is recommended to conduct field tests and consider increasing the number or power of wifi jammers to deal with interference sources.

4. Check the functional expansibility

Some occasions have high requirements for equipment management. It is recommended to give priority to products that support the following extended functions:

Long-term stable operation capability

Uniform switch control (such as simultaneous control of multiple classrooms)

Timed switch function

Equipment operation status detection (overheating alarm, fault prompt, etc.)