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What kind of testing is required for the use of the shielding box?

Author:admin   AddTime:2021-04-10

The shielding effect is the signal value obtained for a certain frequency band when the shielding box is opened and closed when the product is tested. The subtraction of the front and back values is the shielding effect. The unit is DB, and the subtraction is a negative value. If the negative value is smaller, , Then the better the effect of the shielding box, the better the shielding effect of the test, and the more stable the signal of the product produced. In fact, the shielding box is mainly used in the following tests:

EMI test: Note: Because wireless products such as mobile phones need to go through the test process during the production process, the problem of base station radio frequency signal transmission is involved at this time. There are often friends who interfere with each other due to radio frequency signals between adjacent test stations on the production line. , And worry about not being able to test the specified capacity efficiently and quickly, this kind of interference signal is also called EMI signal



Coupling test: Note: Coupling, as the name suggests, is a coupling test of mobile phone signals. This phenomenon is often encountered in some mobile phone manufacturers, mainly in mobile phone production and test occasions.

RF functional test: RF is a functional test of wireless products

Receiver sensitivity test: Note: commonly known as sensitivity, referred to as RX test

Transmitter radiated power test: Note: Transmitter power calibration test

EMI and EMS testing of small UHF equipment: handheld terminal testing

Absorbing Material:https://www.goodsmaterial.com/

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