How to test the effect of the signal jammer in the examination room
In the exam, it is a more effective method to use the signal jammer in the exam room to supervise the student exam. However, the shielding effect of the signal blocker in the examination room is often determined by whether the electronic product can still receive and emit signals. How to test the effect of the signal jammer in the examination room?
Test Methods:
1. Test the shielding distance of the signal jammer, don't just use a certain type of operator's network test, you may try several times. During the exam, cheating candidates use different mobile networks, and there are many 4G mobile phone networks. If the power of the signal jammer in the examination room is not enough, it may not be able to completely block the network.
2. All kinds of mobile phone networks may be completely blocked. It takes a while to start up, and sometimes the network cannot appear.
3. The signal jammer in the examination room needs to be heated continuously when it is working. After a period of time, the temperature changes significantly, indicating that the effect is obvious.
Test steps:
Prepare test equipment: You need to prepare a mobile phone and a test instrument. The test instrument can be a spectrum analyzer, a signal generator, etc., which are used to detect the signal sent by the mobile phone and the effect of the signal jammer in the examination room.
Set up the test scene: Place the test room signal jammer in a closed space, such as a laboratory or a closed room. Place a test instrument in this space to test the effect of the signal jammer.
Test signal: Turn on the test instrument and use the signal generator to generate a signal of a certain frequency, then use the mobile phone to make calls or send text messages, etc., and observe whether the test instrument can detect the signal sent by the mobile phone.
Test result: If the test instrument cannot detect the signal from the mobile phone, it indicates that the test room signal jammer works well. If the test instrument can detect the signal from the mobile phone, the signal jammer is not effective and needs to be optimized or replaced.
In total, we need to test the effect of the signal jammer in the examination room according to the above method. Whether it can shield various signals requires repeated use of various network tests.
Sample Image Gallery
