Using Alternate Sweep; Setting Alternate Sweep - JDS Uniphase CellAdvisor JD720C Series User Manual

Chapter 16 Analysis

Using alternate sweep

You can use the Alternate Sweep that is available only in DTF measurements after a
calibration to scale down of a specific sub-band without a need of an additional calibration.
Two independent sweeps can be performed, for example, one Reflection measurement and
the other DTF measurement.

Setting alternate sweep

Procedure
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Press the SETUP hard key and touch the Alternate Sweep tab. If you have dual displays on the
screen, make sure to select a DTF measurement display for which you like to set.
The alternate sweep setting window appears as shown in Figure 84.
Select On for the Alternate Sweep to enable or Off to disable.
To set the frequency to be measured, do one of the following:
–
To set the alternate start and stop frequencies, complete the following steps:
a Select the input box for Alternate Start Frequency and then enter a value.
b Select the input box for Alternate Stop Frequency and then enter a value.
–
To set the alternate center frequency and span, complete the following steps:
a Select the input box for Alternate Center Frequency and then enter a value.
b Select the input box for Alternate Span and then enter a value.
NOTE
Minimum value for the Alternate Span is 2% of what you have set for the Span in
the Frequency/Distance tab.
To set the distance, complete the following steps:
a Select the input box for Start Distance and then enter a value.
b Select the input box for Stop Distance and then enter a value.
Tap the Apply button in the lower-right corner of the setup screen to save and exit.
The text "Alt Sweep: On" appears at the top left corner of the DTF measurement plot.
CellAdvisor JD720C User's Manual