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 107
Minimum Hold
Maintains the displayed minimum level for each
trace point of the selected trace, and updates each
trace point if a new minimum level is detected in
successive sweeps.
Key access: [TRACE] > {Min Hold}
View
Holds the currently displayed measured data of the
selected trace. The trace register is not updated as
the analyzer sweeps. If a trace is deactivated by
pressing Blank, the stored trace data can be
retrieved by pressing View.
Key access: [TRACE] > {View}
Blank
Stores the currently displayed amplitude data for
the selected trace and removes it from the display.
The selected trace register will not be updated as
the analyzer sweeps. This function is activated for
traces 2, 3 and 4 at power- on and Factory Preset.
Key access: [TRACE] > {Blank}
Detector
Key access: [TRACE] > {More (1 of 2)} > {Detector}
Selects a specific detector type, or allows the
system to auto select the appropriate detector for a
measurement.
For every trace point displayed, there is a finite
time during which the data for that point is
collected. The analyzer has the ability to look at all
of the data evaluated during that time and present
NOTE
Changing the vertical scale (Amplitude, Scale Type, Log or
Line), or pressing PRESET, or turning averaging on (TRACE,
Average (On)) or switching widows in Zero Span restarts the
held trace.