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Chapter 3 73
Basic Digital Operation
Arbitrary (ARB) Waveform File Headers
Marker settings and routing functions (page 88)
—Polarity
—ALC hold
—RF blanking
• High crest mode (only in the dual ARB player)
• Modulator attenuation
• Modulator filter
• I/Q output filter (used when routing signals to the rear panel I/Q outputs)
• Other instrument optimization settings (for files generated by the PSG) that cannot be set by the
user.
Creating a File Header for a Modulation Format Waveform
When you turn on a modulation format, the PSG generates a temporary waveform file
(AUTOGEN_WAVEFORM), with a default file header. The default header has no signal generator
settings saved to it.
This procedure, which is the same for all ARB formats, demonstrates how to create a file header for
a Custom digital modulation format.
1. Preset the signal generator.
2. Turn on the Custom modulation format:
Press
Mode > Custom > ARB Waveform Generator > Digital Modulation Off On to On
A default file header is created, and the temporary waveform file (AUTOGEN_WAVEFORM) plays.
Figure 3-1 shows the PSG’s display.
Figure 3-1 Custom Digital Modulation First-Level Softkey Menu
At this point, a default file header has been created, with default (unspecified) settings that do
not reflect the current signal generator settings for the active modulation. To save the settings for
First-Level Softkey Menu
(Some ARB formats
have a second page)