3 Band GPS Jamming L1 L2 L3 L4 Cell Phone Signal Jammer Blocker1500-1600MHz 1.5g GPS for Prison School Conference Room Exam Hall

Install Steps:

1. Please charge battery at least 10 hours before first-time use.

2. Turn off power switch before charging. Charging indicator shall lights on RED when charging the battery, the indicator will turn to GREEN color while finished.

3. Please install antennas and tight up according to the number indicator, the antennas are already connected and can be used directly (default )

4. Turn on the power switch and the Power LED shall light in Green and the LED of each band will turn on too.

5. Don't suggest to use while charging, otherwise the charger or machine will be damaged, because temperature may too high about 75 °

 

Matters needing attention:

1. The farther the portable unit is from the base station, the farther the shielding distance is.Example GSM When the base station signal field strength of the installation point is -75dbmV, the maximum distance of the shielding center is about 2 meters. The stronger the base station signal field, the smaller theshielding distance. When the base station signal field strength is greater than -35dbmV, the center is shieldedThe maximum distance is only 0.5-1 meters.

2.Shielding range refers to the circular area centered on the machine. The block signal is sent by the host and is broadcast outward from strong to weak. The application site should be placed in an appropriate position, using the cellulartype ofplacement selection, so that the shielding signal is evenly distributed.

3. Human body, object, wall and so on block the transmission of shielding signal.and try to avoid obstacles when using.

4.The machine should be used in a cool and dry place, avoid direct sunlight, rainand fog invasion.




Notice:

1. Do not power on if antennas are not connected one by one.

2. The functional coverage is greatly affected if antennas are not installed correctly. Do ensure the antennas are properly connected before usage.

3. When power on, keep away from computer, notebook PC, television, audio and AM/FM radio to prevent interferences.

4. The normal operational temperature is about 45-60° C. If the temperature is higher than the above, turn off the power immediately and contact local agent for help.

5. Its functional coverage will depend on the location and strength of the ambient mobile phone base stations.

6. Placing the device on higher position for better coverage. 2 meters height is recommended.

7. The Ni-MH rechargeable battery has estimated 500 times recharge cycles. Please contact the local agent to replace battery if it is not rechargeable.

 

Certifications

OUR EXHIBITION

 

We participated in the China (Shenzhen)Internotionol Equipment ond Anti-terrorist 2023, during which our low-altitude drone defense technology products received widespread attention and media interviews. With its advanced technology and high-quality products, it has won the trust and recognition of its customers.

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A5: 1 to 20 pcs according to different product.

 

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A6: Our strict quality control ensures 100% pass rate. But it can be damaged in the way. Please kindlyshare the defective product photo or video to let us know where the problem is. We will make the compen-sation accordingly or send you a part or product.