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Using Statistical Power Analysis for your Digital RF signals

Using Statistical Power Analysis for your Digital RF signals

Why Statistical Analysis?
In modern communications, signal average power, although important is no longer a sufficient control variable. These communication signals often require more diagnostic measurements. In the statistical mode, the power sensor measures the precentage of time the signal exsists at a specific peak-to-average ratio. In the time domain mode, the sensor adds a variety of functions similar to an oscilloscope to our standard suite of measurements.

The non-periodic time-domain characteristics of digitally-modulated signals make it impossible to accurately characterize them using conventional RF power measurement techniques. Benchtop instruments with statistical measurement capability have been available for some time, but the Bird Model 7022 is the first to incorporate them in a thruline USB-connected power sensor suitable for use in any environment, from periodic field measurements to installation in base stations.

Modes of Operation
The Bird Model 7022 has three operating modes. In “conventional” mode it functions much like a traditional RF power sensor, measuring forward and reflected average power, VSWR, and return loss. In “time-domain” mode it displays time-domain waveform characteristics and provides markers to determine average burst power, peak power, and other pulse-related parameters. In “statistical” mode it measures peak-to-average power ratio versus the time in percent that the waveform is at or exceeds a specific peak/average power ratio.

Technical Details
Bird’s Model 7022 measures power levels from 250 mW to 500 W over a frequency range of 350 MHz to 6 GHz and is an excellent choice for applications ranging from performance optimization to maintenance and troubleshooting. It is extremely compact, lightweight, and rugged, measuring only 5.8 x 4.8 x 1.3 in. and weighing 1.5 lb., making it well suited for use in the field. In addition to measuring the statistical properties of digital waveforms it provides a complete range of other RF measurements including forward and reflected average power, VSWR, and return loss.

User Interface
The Model 7022 includes the latest version of Bird’s VPM3 Windows-based Virtual Power Meter software that when installed on a Windows-based laptop, tablet, or desktop computer provides a comprehensive user interface for configuring measurements, viewing results, and exporting data for trend analysis in spreadsheets. If you have any questions with regards the statistical Power Analysis contact our RF product specialist rob.vanosch@heynen.nl

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Our expert(s):

Dennis de la Roy Dennis de la Roy
Please contact Dennis with any questions or business opportunities relating to electronic Components of Heynen. We love to be involved in developing new solutions and bringing these to the Dutch market. Contact form dennis.delaroy@heynen.nl
+31 (0)485 55 09 37

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