How to choose a suitable mobile phone signal jammer?

How to choose the right mobile phone signal jammer:

1.Frequency band coverage:

Determine which signals you want to block before purchasing. Standard mobile phone signals (2G, 3G, 4G) can be selectively blocked. If you only need to block 2G or 3G, or only need to block 3G or 4G, you can adjust the device accordingly. In addition, our company provides full-band signal jammers that cover all frequencies. If you need to block a specific signal, you can install the corresponding antenna on the device.

2.Applicable scenarios:

Consider the specific environment in which the jammer will be used. For indoor applications, such as examination rooms, conference halls, and offices, mobile phone signal jammers designed for these spaces are suitable. In contrast, outdoor areas require medium-power devices to ensure effective coverage and proper spacing. In locations such as gas stations, explosion-proof and high-temperature-resistant jammers are necessary.

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3.External antenna vs. internal antenna:

Cell Phone Jammers have external antennas and internal antennas. Generally speaking, devices with external antennas take up more space due to the extended antenna, while devices with internal antennas are smaller in size. External antennas tend to provide slightly more stable signals.

4.Power output:

Jammers are available in low, medium, and high power options, ranging from 3W to 100W. When choosing a cell phone signal jammer, consider the total area you need to cover for effective jamming.

5.Coverage:

The coverage of a jammer is proportional to its power output. Low-power jammers are suitable for smaller areas, such as classrooms, and cover about 200 square meters. High-power jammers can provide a shielding distance of 300-400 meters, depending on the local field strength.

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6.Form Factor:

Jammers vary in size and shape. Handheld jammers are small and portable, suitable for carrying around. Low-power desktop jammers are similar in size to a small laptop computer, while high-power jammers are relatively large and may be box-shaped.

7.Power Supply:

Handheld jammers usually have built-in lithium batteries that can be charged using a power adapter. Desktop jammers used in examination rooms require a 220V power supply, while vehicle-mounted jammers usually use a 12-36V voltage from the vehicle’s power system.