TEKBOX Open Hydroelectromechanical Room (TEM Cell) is used for EMC consistent radiation measurement

TEKBOX Open Hydroelectromelet Chamber (TEM CELL) unit is used with a spectrum analyzer or receiver, which can test the product before and after product EMC correlation, engineers can clearly see rectification effect. 50 Euro load connection to any of the two ports of the TEM unit, connect DC-Block to another port, and then connect it to the input of the spectrometer or receiver. Place the DUT under the partition and turn on the power. The decay of the spectrometer or receiver is set to 0 dB, and if the spectrometer can open a pre-placed amplifier to open the added measurement dynamic range. The RBW is set to any bandwidth of 9kHz or the corresponding standard, the spectrum trace line is set to maximum, and the spectrum can be scanned multiple times to capture the pulse or acoustic signal of the DUT. EMC measurements typically use peak detectors to be scanned, if there is a limit, if there is spurious spectral or receiver, the quasi-peak detector should be used to measure the spurious signal of the limit value, the peak value detector measurement signal. Envelope Weighted peaks, weighted the signal based on the duration and repetition rate of the signal. The acupuncture signal will result in a lower quasi-peak value than the frequencies of the frequency, due to the peak measurement, consume more time compared to simple peak measurements, and usually in a smaller frequency region with high amplitude spurious Span execution. TEM units can identify potential issues that may result in failure of EMC measurement. According to experience, it is assumed that the PCB position is not higher than the bottom wall 1-2 cm, then any spurious signal having a large amplitude greater than 40D μV will constitute a threat. Quick check by turning off the power of the DUT to ensure that it will not affect the environment background noise. Although the design is well designed, the TEM unit is not very sensitive to the noise signal from the outside. However, cables connected to the DUT may absorb background noise being introduced into the TEM unit. Typically, this signal will occur in the case of DUT power failure, so it can be easily identified. In the TEM unit, the product signal radiation harass is reduced, and it will be reduced in the certification test laboratory. If you do not test the authentication consistency, measure it and hold the result in the TEM unit. Then, rectification, compare the pseudo level in the consistency measurement report to compare the stray water measured by the TEM unit, and check the difference between DB. Rectifying the equipment until the stray level measured within the TEM unit

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