It is very common to use manpack jammers in exams, so we must pay attention to the misunderstandings in use.

1. Manpack jammers will have different effective interference ranges in different places of use. This is closely related to the field strength of the field signal, so it should be selected according to the actual situation.

2. Each antenna has a corresponding vacancy. Before turning on the manpack jammer, make sure that each antenna is reliably connected. It is forbidden to use the equipment without antenna (if some manpack jammers with built-in antenna accidentally disassemble the shell, please do not disassemble the antenna at will).

3. After the jammer works for a long time, the surface temperature will rise to more than 40 degrees. Don't worry. This is a normal phenomenon that part of the electric energy is converted into heat and released when the internal components work.

4. The normal installation height of manpack jammer shall be 1.8m-2.5m, and shall be installed at the position without obstacles between the target shielding areas.