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In fact, the engineering-grade mobile phone jammer is derived from the hardware upgrade of ordinary mobile phone signal jammers. It is more refined in workmanship, more wear-resistant and heat-resistant in appearance, faster in heat dissipation, and a machine with continuous standby for more than 48 hours.

Generally, the machine is used for engineering construction, important examination places, and places that need to be turned on for a long time. How to choose a good engineering-grade mobile phone signal jammer?

This is also very simple, as long as you use a topsignaljammer engineering-level mobile phone signal jammer, you can directly lock the antenna and open the machine to use it.

Engineering grade cell phone signal jammer parameters

The 5G mobile phone signal jammer adopts a specially customized VCO chip, which is conducive to the continuous development of communication standards.

A high-tech product carefully developed according to the actual situation of mobile communication, it can be within a radius of 1-30 meters (about 10-250 square meters, and the shielding range can be adjusted according to the required place).

Cut off GSM/CDMA/AMPS/DCS/PHS/5.8G/3G/4G/GPS/Beidou (WCDMA, TD-SCDMA and CDMA2000) so that all kinds of wireless communication products cannot communicate,

And it will not interfere with the work of other electronic equipment, thus ensuring the safety of the required place, and the wireless signal equipment can be restored to normal use after leaving the isolation range without any damage to the human body.

Features of engineering-grade mobile phone signal jammer

1. Effectively shield CDMA (China Telecom), GSM (China Mobile, China Unicom), SCDMA (Netcom Dalingtong), DCS (1800MHz),

PCS (1900MHz), PHS (Telecom PHS), 3G/4G/GPS/5.8G/Beidou. All communication signals such as mobile phone signals and walkie-talkie signals,

2. Ultra-thick shell, using double fan high heat dissipation white aluminum shell, the surface can be OEM or silk screen logo according to customer needs (free screen printing service)

3. It can be used on the cigarette lighter vehicle.

4. The effective shielding distance is adjustable from 1-25 meters (debugged before leaving the factory)

Isolation range

1-25 meters (about 10-300 square meters, the shielding range can be adjusted according to the required place)

Actionable type

All mobile phones / walkie-talkies / DHS / PHS GPS wireless signals / wireless headsets, etc.

Location

Both indoor and outdoor

About the principle and characteristics of the cell phone signal jammer The cell phone signal jammer scans from the low-end frequency of the forward channel to the high-end frequency at a certain speed during the working process.

This scanning speed can cause garbled interference in the received message signal of the mobile phone, and the mobile phone cannot detect the normal data sent from the base station.

Make the mobile phone unable to establish a connection with the base station. The mobile phone manifests as the phenomenon of searching the network, no signal, no service system, etc.

Cell phone signal blocking

The working principle of the mobile phone signal jammer is that within a certain frequency range, the mobile phone and the base station are connected by radio waves to complete the transmission of data and sound with a certain baud rate and modulation method.

So what are the characteristics of the mobile phone signal jammer? The phone jammer only blocks the mobile phone signal in the examination room, and does not interfere with the mobile phone outside the examination room, and it will not interfere with the base station.

It only shields the mobile phone signal, does not affect the normal operation of other electronic equipment, only shields the downlink frequency of the transmitting base station without affecting the uplink frequency.

The mobile phone signal jammer is simple to operate, install the antenna correctly, and can run automatically when the power is turned on.