Agilent Technologies E8247C, Руководство пользователя

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Chapter 5 95
Dual Arbitrary Waveform Generator
Arbitrary (ARB) Waveform File Headers
Storing Header Information for a Dual ARB Player Waveform Sequence
When you create a waveform sequence (described on page 101 ), the PSG automatically creates a default file
header, which takes priority over the headers for the waveform segments that compose the waveform
sequence. During a waveform sequence playback, the waveform segment headers are ignored (except to
verify that all required options are installed). When you store the waveform sequence, its file header is
stored with it.
Modifying and Viewing Header Information in the Dual ARB Player
Once a modulation format is turned off, the waveform file is available only to the dual ARB player. This is
also true for downloaded waveform files. Because of this, future edits to a waveform’s header information
must be performed using the dual ARB player.
To modify header information in the dual ARB player, the waveform file must be playing in the dual ARB
player (although you can view the header information in the dual ARB player without playing the file)
You can reapply saved header settings by reselecting the waveform file for playback. When you do this, the
values from the
Saved Header Settings
column are applied to the PSG.
Modifying Header Information
All of the same header characteristics shown in “Modifying Header Information in a Modulation Format” on
page 90 are valid in the dual ARB player. This task guides you through selecting a waveform file and
accessing the header for the selected file, then refers you back to the aforementioned procedure to perform
the modifications.
1. Select a waveform:
a. Press
Mode
>
Dual ARB
>
Select Waveform
.
b. Using the arrow keys, highlight the desired waveform file.
c. Press the
Select Waveform
softkey.
2. Play the waveform: Press
ARB Off On
to On.
3. Access the header: Press
ARB Setup
>
Header Utilities
.
4. Refer to “Modifying Header Information in a Modulation Format” to edit the header information:
• For a default header, read the information in step one on page 90 , then perform the remaining steps in
the procedure.
• To modify an existing file header, start with step three on page 92 .
The rest of this section focuses on the additional file header operations found in the dual ARB player.