Thursday, July 30, 2009

Rohde And Schwarz Adds Signal Generator Options

Rohde and Schwarz is now offering two new options for its RandS SMA100A analogue high-end signal generator. By adding the RandS SMA K27 option, users can quickly configure different pulse trains for tests in radar-specific development, production and maintenance. An external pulse generator is no longer needed. The RandS SMA K28 option can analyse signal power versus frequency, power and time by using the RandS SMA100A signal generator together with a power sensor from the RandS NRP-Z family.

Pulse trains consist of pulses that have different durations. Their pulse width and pulse pause can be user configured. Such signals are frequently used in radar systems. Interfering with such pulses is far more difficult than with pulses sent at regular intervals. In addition, these pulses enable radar receivers to detect incorrect measurements more easily and to prevent blind spots on the radar image. The RandS SMA-K27 option is based on the pulse modulator integrated into the RandS SMA100A as standard and the optional high-performance pulse generator (RandS SMA-K23), utilising their dynamic range and speed.

As a result, the user can quickly generate pulse trains with very short rise and fall times - using only one instrument. Previously, such scenarios could only be created by using an additional external pulse generator, which meant a more complex test setup. The RandS SMA K28 option enables the user to perform a power analysis of signals directly by using the RandS SMA100A and a power sensor from the RandS NRP-Z family. Using the analysis function versus time, the user can measure different parameters such as pulse rise and fall times as well as pulse width and pulse dynamic range.

In addition, DUT analyses versus power and frequency are possible, such as when measuring the compression point or the frequency response. Markers make it possible to determine the power at a specific point. The RandS SMA-K27 (pulse trains) and RandS SMA-K28 (power analysis) options are available now from Rohde and Schwarz.

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