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Chapter 6 121
Custom Arb Waveform Generator
Working with Predefined Setups (Modes)
Working with Predefined Setups (Modes)
When you select a predefined mode, default values for components of the setup (including the filter, symbol
rate, and modulation type) are automatically specified.
Selecting a Custom ARB Setup or a Custom Digital Modulation State
1. Preset the signal generator: press Preset.
2. Press
Mode > Custom > Arb Waveform Generator > Setup Select.
3. Select either:
• one of the predefined modulation setups:
NADC, PDC, PHS, GSM, DECT, EDGE, APCO 25 w/C4FM, APCO
25 w/CQPSK
, CDPD, PWT, or TETRA
This selects a predefined setup where filtering, symbol rate, and modulation type are defined by the
predefined modulation setup (mode) that you selected and returns you to the top-level custom
modulation menu; it does not include bursting or channel coding.
or
•
Custom Digital Mod State
This selects a custom setup stored in the Catalog of DMOD Files (see page 122 for information
on creating a custom digital modulation setup).