Install using:

1. Make sure the antenna and other accessories of the signal jammer for sale are installed correctly;

2. Ensure that the mobile base station is more than 200 meters away;

3. The shielding effect depends on the surrounding environment. The interference effect of mobile phones used in suburbs is better than that in cities, because the density of mobile base stations in cities is larger and the distance between base stations is closer, causing the signals emitted by urban mobile base stations (where the jammer needs to be blocked) to be stronger than in the suburbs. multiple times;

4. When using a jammer, there should not be any metal objects or wall obstructions around the antenna to block signal transmission;

5. The strong magnetic field of the signal and the strong electromagnetic wave environment will affect the interference effect;

6. The installation height of the jammer should be as high as possible and at the same level as the device you want to shield;

7. Long-term use of the shield will cause high heat and affect the interference radius;

8. When the phone is on a call, the jammer does not easily block the signal (the signal is very strong during the call);

9. The radio wave emitted by the shield is a high-energy material. It is normal for the high-energy material to accumulate and cause the machine to heat up;

10. The signal on the mobile phone indicates that there is a certain lag in the refresh of the grid. You may have turned on the jammer but the mobile phone still displays the signal condition, but in fact the mobile phone cannot be used. Please follow the actual effect;

11. To test the function of the GPS jammer, please download the GPS signal detection software to test the shielding effect, or turn on the car navigation function to test;

12. WIFI jammer devices with WIFI interference function will also block other appliances with WIFI, such as wireless microphones, speakers, monitors, etc. Please be careful to stay away from these wireless devices when using them.

Maintenance:

1. When the shield is not in use, it should be stored in a dry and ventilated place to avoid long-term exposure to salt spray and harmful gases. Signal blocker;

2. When the jammer is working, do not put other objects on it or disassemble the antenna, so as not to affect the effect of the jammer and damage the host;

3. Mobile phone signal shielding antenna with external antenna - it cannot be screwed wrongly, it must be screwed up according to the frequency;

4. The mobile phone signal jammer should be installed away from high temperature and humid places. When using the jammer outdoors, pay attention to waterproofing;

5. Do not use a completely sealed box to cover the outside of the mobile phone signal jammer in order to hide it. This will affect heat dissipation and cause damage to the machine;

6. The antenna must be installed on the jammer and then connected to the power supply;

7. The shield should be placed in a well-ventilated place, try to avoid large objects, strong heat sources and strong electromagnetic sources to maintain the shield effect and work for a long time;

8. If the power supply of the mobile phone signal jammer is not industrial grade, remember not to turn it off 24 hours a day, as this will shorten the life of the power supply and the machine;

9. When wiping the surface of the shielder, avoid using chemical solvents and avoid water entering the machine;