EMI test receiver is future-proof
A Rohde and Schwarz product story
Edited by the Electronicstalk editorial team Aug 21, 2009
Rohde and Schwarz has introduced a CISPR 16-1-1-compliant EMI test receiver for frequencies from 9kHz to 7GHz.
The 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.
The RandS ESCI7 enables test houses to adapt their services to future requirements and helps manufacturers to avoid redevelopment.
It features an integrated spectrum analyser and can be used by all manufacturers who wish to sell products such as computers, modems or printers and the necessary components in the EU.
It can detect and analyse radiated disturbance up to 7GHz and check whether their products comply with the future limit values.
Due to the integrated spectrum analyser, it can perform a number of the standard measurements typically encountered in RF development labs.
The receiver can measure phase noise, occupied bandwidth and adjacent channel power, or determine the third-order intercept point.
The ESCI7 has a low displayed average noise level (typ.
-153 dBm at 1GHz and 10Hz bandwidth) and a wide dynamic range (1dB compression point of +5 dBm).
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 one to 6GHz.
This capability reduces the need for external preamplifiers, low-loss cables or highly sensitive antennas.
The mixed-mode display of the 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 an 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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