Occupied Bandwidth and Channel Power Measurements with a Real-time Spectrum Analyzer

As wireless telecommunication features continue to expand into virtually every control and sense technology in military, industrial, and domestic environments, a wide array of new wireless transmitters and transmitter components will need to be designed, prototyped, calibrated, and analyzed for quality assurance. There are many measurement methods and figures of merit that can be brought to bear in analyzing transmitter performance. Two such methods, occupied bandwidth (OBW) and channel power measurements, are relatively easy measurements to make that can reveal distortion, poor power amplifier (PA) design, filter effects, system noise, and other signal degradation factors.

This document will walk through an example setup and testing procedure for both occupied bandwidth and channel power measurements. The goal of the walkthrough is to demonstrate and explain the critical aspects of occupied bandwidth and channel power measurements and how Signal Hound tools can be used to reliably produce low-cost and low-learning-curve measurements rapidly and with little setup.

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