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N5161A/62A/81A/82A/83A MXG Signal Generators User's Guide

N5161A/62A/81A/82A/83A MXG Signal Generators User's Guide

N5161A/62A/81A/82A/83A MXG Signal Generators User's Guide

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Custom Digital Modulation (Option 431)Using the Arbitrary Waveform GeneratorCreating a Custom TDMA Digital Modulation StateIn this procedure, you learn how to set up a single–carrier NADC digital modulation with customizedmodulation type, symbol rate, and filtering.Figure 11-6 Setting a Digital Modulation FilterMode > ARB Custom Modulation > Single Carrier SetupThis softkey label updates to reflectthe current modulation standard.page 275This softkey setsthe filter shape. page 272This softkeysets the filterbandwidthparameter,alpha. Thedefault Alphavalue changeswith themodulationstandard (seepage 279) andmodulationtype selected(seepage 267).Opens a menu to select aIS-95 filter.Opens a menu where theuser–defined I/Qconstellations oruser–defined FSK frequencymappings can be insertedinto a table and then appliedto the current modulationtype. Also; for both I/Q andFSK, differential statemapping can be specified.For details on each key, use key help as described on page 42.Agilent <strong>N5161A</strong>/<strong>62A</strong>/<strong>81A</strong>/<strong>82A</strong>/<strong>83A</strong> <strong>MXG</strong> <strong>Signal</strong> <strong>Generators</strong> User’s <strong>Guide</strong> 271

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