User`s guide
Table Of Contents
- Overview
- Getting Started
- System Setting
- Making Measurements
- Measuring Multiple Signals
- Measuring a Low-Level Signal
- Improving Frequency Resolution and Accuracy
- Making Distortion Measurements
- One-button Power Measurement
- Making a Stimulus Response Transmission Measurement
- Measuring Stop Band Attenuation of a Low-pass Filter
- Making a Reflection Calibration Measurement
- Measuring Return Loss Using the Reflection Calibration Routine
- Making an Average Power Measurement
- Key Reference
- SCPI Command Reference
- Error Messages
- Menu Map

Key Reference 5
N9340A User’s Guide 97
Frequency
Activates the center frequency function, and
accesses the menu of frequency functions. The
center frequency, or start and stop frequency
values appear below the graticule on the display.
Center Frequency
Key access: [FREQ] > {Center Freq}
Activates the center frequency function, which
allows you to set the horizontal center of the
display to a specified frequency.
Start Frequency
Key access: [FREQ] > {Start Freq}
Sets the frequency at the left side of the graticule.
The left and right sides of the graticule correspond
to the start and stop frequencies. When these
frequencies are activated, their values are
displayed below the graticule in place of the center
frequency and span.
Stop Frequency
Key access: [FREQ] > {Stop Freq}
Sets the frequency at the right side of the
graticule. The left and right sides of the graticule
correspond to the start and stop frequencies. When
these frequencies are activated, their values are
displayed below the graticule in place of the center
frequency and span.
NOTE
When changing both the center frequency and the span,
change the frequency first since the span can be limited by
the frequency value.