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EMI tester receiver handles wide dynamic range

Posted: 27 Aug 2009     Print Version  Bookmark and Share

Keywords:EMI test  receiver  spectrum analyser 

ESCI7 EMI test receiver

From Rohde & Schwarz comes the CISPR 16-1-1 compliant EMI test receiver for the frequency range from 9kHz to 7GHz.

The R&S ESCI7 meets the requirements of the current edition of the CISPR 22/EN 55022 standard for information technology equipment, which will be valid from 2010. Starting in October 2010, radiated disturbance measurements up to 6GHz will be mandatory for IT equipment in the European Union. The R&S ESCI7 enables test houses to adapt their services to these future requirements and helps manufacturers to avoid costly and time-consuming redevelopment effort. Like all EMI test receivers from R&S, the R&S ESCI7 features an integrated spectrum analyser.

The new EMI test receiver is a future-safe solution for all manufacturers who wish to sell products such as computers, modems or printers and the necessary components in the EU. They can detect and analyse radiated disturbance up to 7GHz and check whether their products comply with the future limit values. Thanks to the integrated spectrum analyser, the R&S ESCI7 can perform a large number of the standard measurements typically encountered in RF development labs. The receiver can measure phase noise,

occupied bandwidth and adjacent channel power, for example, or determine the third-order intercept point.

In addition, the R&S ESCI7 features low displayed average noise level (typ. -153dBm at 1GHz and 10Hz bandwidth) and its wide dynamic range (1dB compression point of +5dBm). The test receiver offers the sensitivity required for high-precision EMC measurements using low limit values, as defined by the CISPR 22/EN 55022 standard for the frequency range from 1GHz to 6GHz. This capability benefits users by reducing the necessary investment in external preamplifiers, low-loss cables or highly sensitive antennas.

The mixed-mode display of the R&S ESCI7 simultaneously shows the RF input signal in the spectrum around the receive frequency, the numeric measurement values and the level bar graph. This display mode gives users a better overview of the spectrum that surrounds disturbance signals and enables them to identify disturbance faster. It also allows more accurate tuning of the EMI test receiver to the local disturbance maximum.





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