276 Keysight EXG and MXG X-Series Signal Generators User’s GuideUsing Custom Digital Modulation for N5172B/82B with Option 431 and 653/655/656/657Using the Arbitrary Waveform GeneratorUsing the Arbitrary Waveform GeneratorThis section teaches you how to build dual arbitrary (ARB) waveform files containing custom digitalmodulation for testing component designs.Custom ARB digital modulation creates waveforms using modulation types, filtering, symbol rates,and other parameters defined by digital communications standards. These waveforms areformatted as unframed data.Figure 9-17 Adding Custom Modulation to a WaveformUsing Predefined Custom Digital ModulationThis section teaches you how to perform the following tasks:— Selecting a Predefined EDGE Setup on page 276— Generating the Waveform on page 276— Configuring the RF Output on page 277Selecting a Predefined EDGE Setup1. Press Preset.2. In the ARB Custom Modulation menu (page 276), press Single Carrier Setup > Quick Setup >EDGE.Generating the WaveformPress Digital Modulation Off On.This generates a waveform with the pre–defined EDGE state selected in the step. The displaychanges to Dig Mod Setup: EDGE. During waveform generation, the DIGMOD and I/Qannunciators appear and the pre–defined digital modulation state is stored in volatile memory(BBG). The waveform is now modulating the RF carrier.page 292page 260This softkey label updates to reflect thecurrent modulation type.Mode > ARB Custom Modulation > Single Carrier Setuppage 259page 281For details on each key, use key help as described on page 56.
