User`s guide

User’s Guide 9
E4438C Option H13 Signal Studio for WiMAX
Using the Software
Step 5: Generate and Download the Waveform
NOTE If the ESG is in a mode other than Dual ARB prior to downloading a
waveform from Signal Studio, it can be helpful (but not necessary) to set the
ESG to Dual ARB mode. This reduces confusion, as the ESG display remains
in the last mode used prior to downloading the waveform file; it does not
automatically switch to the Dual ARB mode.
a. From the toolbar, click Generate. The software generates an I/Q waveform file in
accordance with the current physical channel configuration and waveform generation
setup. Waveform generation time varies proportionally to the complexity of the
waveform. Observe waveform generation progress and status in the status bar.
b. From the toolbar, click Graph. The Graph View enables you to examine waveform
characteristics, such as baseband spectrum, I and Q signals and CCDF curves, prior to
downloading the file to the ESG.
c. From the toolbar, click Download. The waveform file downloads to the ESG and
automatically begins to play. You can re-enable local control of the ESG by pressing the
Local hardkey, enabling you to modify signal generator settings from the front panel.
The waveform file, however, cannot be modified after downloading it to the ESG.