Do you know the misunderstanding of the test room shielding device?

Dojammer 2021-04-26

The test room shield has become an indispensable auxiliary tool for the test site, providing a guarantee for the information security of the test site. However, if we do not use the facility reasonably, there will be poor actual results, and even accidents in the examination venue.

Reasonable operation method of cell phone pammer at test site:

1. The effective interception range of the test room shielding device will be different in different applications. This is closely related to the signal field strength on the ground. Different models of mobile phones may not be consistent in the field of interception;

2. The elements of the interference interception category include but are not limited to: the distance, orientation, obstructions relative to the communication base station, the wall material of the on-site building, the height of the shield assembly, the assembly standard specifications, etc.;

3. Every external antenna has a frequency band label, which must correspond to the frequency band label on the main box. Before starting the jammer, make sure that every external antenna is connected reliably. Never allow the application to be started without connecting an external antenna;

Use a jammer in education places

4. After long-term operation, the external temperature of the shield is about 40-50℃, which is normal. If the surface temperature is too high, please turn off the power and try to contact your local distributor or regional agent;

5. The conventional assembly height of the test room shield is 1.8 meters-2.5 meters, and as far as possible, choose to assemble it in a position that has no obstructions between the target interception range. For wall-mounted assembly, the external antenna is required to face upright. When placed on the desktop, the external antenna can be folded 90 degrees and then upright. There should be no AC circuit lines or other audio and video lines within 0.2 meters of the external antenna.



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