WiMAX tester boosts measurement speeds
A Rohde and Schwarz product story
Edited by the Electronicstalk editorial team Sep 28, 2007
The R and S CMW270 WiMAX tester combines signal generation and signal analysis in a single box.
The measurement speed of the new R and S CMW270 WiMAX tester from Rohde and Schwarz is up to ten times higher than that of existing test solutions.
This ensures maximum throughput in the production of WiMAX chipsets and mobile stations.
Measurement accuracy has also been optimised with regard to stability and linearity of the measurements to provide utmost repeatability.
The R and S CMW270 combines signal generation and signal analysis in a single box.
Three calibrated RF connectors in the RF frontend reduce the complexity of the test setup, which allows users in production and service to save costs, time and space.
In addition, the R and S CMW270 is the first WiMAX production tester that is prepared for the integration of base station emulation (signalling mode).
The R and S CMW270 generates CW and OFDMA signals in line with WiMAX IEEE802.16e for frequency and level calibration of WiMAX chipsets and mobile stations.
The nonsignalling mode makes it possible to calibrate the transmitters and receivers of WiMAX mobile stations and to measure the receive characteristics.
The WiMAX tester has comprehensive measurement functions for the verification of WiMAX transmitters such as RF power, EVM, ACP, spectrum mask, I/Q constellation and spectrum flatness.
In the signalling mode, users can check how the DUT behaves in the real network.
This increases the test depth and decreases the error rate, which is important for final testing in production.
An additional device, such as a WiMAX base station, is therefore no longer required.
The R and S CMW270 is already adapted to market-leading WiMAX chipsets, and this reduces the adaptation effort in mobile station production to a minimum.
Further benefits are the low purchase price, the flexible upgradeability, and the self-test functionality, which lower the operating costs.
Automated test routines using the R and S NRP power sensors facilitate on-site error diagnostics.
The WiMAX tester from Rohde and Schwarz is ready for future expansions of the WiMAX standard.
It covers the frequency range from 100MHz to 6GHz.
The R and S CMW270 thus supports all RF profiles defined by the WiMAX Forum.
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