Coupled Frequency - Keysight N9923A User Manual

CAT (Cable and Antenna Test) Mode
CAT Mode Settings
Nominal here means: a general, descriptive term or design parameter. It is
not tested and not covered by the product warranty.
In FieldFox's with FW <A.08.15, the Nominal Output displayed on the
bottom right side of the display indicates a range of low and high power
values. Your actual measured output power could be a little lower or a
little higher. Refer to
If you have the USB power sensor feature (Option 302) you can measure
the actual output power for your measurement. Refer to page
"Power Meter (USB) Mode."
Figure 5-1 Nominal Output Power

Coupled Frequency

This setting, especially useful for a Return Loss & DTF measurement, allows
both measurements to have different frequency ranges.
How to set Coupled Frequency
With a Return Loss & DTF measurement present:
— Press Meas Setup 4.
— Select the DTF measurement (Tr2) using the
— Then choose from the following:
—
—
84
—Press Enter.
Figure
Coupled Freq ON
- Both the Return Loss and DTF traces have the same
frequency range settings.
Coupled Freq OFF
(default setting) - Both traces are allowed to have
individual frequency range settings. When set to OFF:
—The Return Loss measurement frequency settings are made in the
usual manner. Learn how at
new Start or Stop frequency is selected, Coupled Frequency is
automatically set to OFF.
—The DTF measurement is made using the frequencies as determined by
the DTF Frequency Mode setting. Learn more in
Settings" on page
5-1.
"Frequency Range" on page
91.
Keysight N9923-90001 User's Guide
Chapter 8,
arrows.
79. When a
"DTF Measurement