Keysight E8357D/67D & E8663D PSG User’s Guide 93
Basic Digital Operation
Arbitrary (ARB) Waveform File Headers
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 the active
modulation, you must modify the default settings before you save the
header information with the waveform file (see
Information in a Modulation Format” on page 93
NOTE
Each time an ARB modulation format is turned on, a new temporary
waveform file (AUTOGEN_WAVEFORM) and file header are generated,
overwriting the previous temporary file and file header. Because all ARB
formats use the same file name, this happens even if the previous
AUTOGEN_WAVEFORM file was created by a different ARB modulation
format.
Modifying Header Information in a Modulation Format
This procedure builds on the previous procedure, explaining the different areas
of a file header, and showing how to access, modify, and save changes to the
information.
In a modulation format, you can access a file header only while the modulation
format is active (on). This procedure uses the Custom digital modulation
format. All ARB modulation formats and the dual ARB player access the file
header the same way, except that in some modulation formats, you may have
to go to page two of the first–level softkey menu.
1.
From the first–level softkey menu (shown in
the Header Utilities menu:
Press
ARB Setup
>
Header Utilities
shows the default header for the Custom digital modulation
waveform. The
Saved Header Settings
column, shows that the signal
generator settings for the active format are
Unspecified
, which means
that no settings have been saved to the file header.
First–Level Softkey Menu
(Some ARB formats have a
second page)
