Trellis Diagram Settings; Gp Digital Modulation Shared Measurement Settings - Tektronix SPECMON3 Manual

GP Digital Modulation
Changing the Trellis Diagram Settings (see page 307)

Trellis Diagram Settings

Menu Bar: Setup > Settings
Front Panel: Settings
Application Toolbar:
The settings for the Trellis Diagram display are shown in the following table.
NOTE. You might be able to save time configuring the Trellis Diagram display by pressing the Standard
Settings button from the Settings control panel. This allows you to select a preset optimized for a standard
from the Select Standard dialog box. See
Settings tab
Modulation Params (see
page 309)
Freq & BW (see page 313)
Equalizer Tab (see page 314)
Advanced Params (see
page 316)
Find (see page 319)
Analysis Time (see page 319)
Trace (see page 321)
Scale (see page 323)
Prefs (see page 323)
xxx

GP Digital Modulation Shared Measurement Settings

The displays in the GP Digital Modulation folder (Setup > Displays) are each a different format for
presenting the results of a single underlying analysis. For this reason, all controls that affect the analysis
parameters are shared by all the displays in the GP Digital Modulation folder.
Changing a setting on one tab changes that setting for all the GP Digital Modulation displays. For
example, if you change the Modulation Type for the Constellation Display, it also changes the Modulation
SPECMON3 & SPECMON6 Printable Help
Standard Settings Button. (see page 308)
Description
Specifies the type of modulation used for the input signal and other parameters.
Specifies settings for frequency error, measurement BW and Frequency Deviation. Each
of these settings is set internally when set to Auto. Alternatively, you can specify values
appropriate for specific measurement needs.
Enable the Equalizer and adjust its parameters.
Specifies additional parameters.
Used to set parameters for finding a burst within the data record and for entering a
Synch word.
Contains parameters that define the portion of the acquisition record that is used for
analysis. Also allows you to specify the Units (Seconds or Symbols) for the GP Digital
Modulation displays.
Allows you to set the trace display characteristics.
Specifies the horizontal and vertical scale settings.
Enables you to set characteristics of the measurement display.
Trellis Diagram Settings
307