5-12
Optimizing Measurement Results
Increasing Sweep Speed
To Set the Auto Sweep Time Mode
Auto sweep time mode is the default mode (the preset mode). This mode maintains the
fastest sweep speed possible for the current measurement settings.
• Press , to re-enter the auto mode.
To Widen the System Bandwidth
1. Press .
2. Increase the IF bandwidth to increase the sweep speed.
The specifications and characteristics chapter of the reference guide shows the relative
increase in sweep time as you decrease system bandwidth.
To Reduce the Averaging Factor
By reducing the averaging factor ( n um b er of sweeps) or switching averaging o ff, you ca n
increase the analyzer's measurement speed. The time needed to compute averages can also
slow the sweep time slightly, in narrow spans.
1. Press .
2. Enter an averaging factor that is less than the value displayed on the analyzer screen
and press .
3. If you want to switch off averaging, press .
To Reduce the Number of Measurement Points
1. Press .
2. Enter a number of points that is less than the value displayed on the analyzer screen
and press .
Refer to the “Specifications and Characteristics” chapter of the reference guide for
examples of how sweep time changes with the number of points.
To Set the Sweep Type
Different sweep speeds are associated with the following three types of non-power sweeps.
Choose the sweep type that is most appropriate for your application.
1. Press .
2. Select the sweep type:
• Select for the fastest sweep for a given number of fixed points.
• Select for the fastest sweep when specific non-linearly spaced
frequency points are of interest.
• Select for the fastest sweep when the frequency poi nts of int erest are i n
the lower part of the frequency span selected.
Sweep Setup
SWEEP TIME
0
Avg
IF BW
Avg
AVG FACTOR
x1
Avg
AVERAGING OFF
Menu
NUMBER OF POINTS
x1
Sweep Setup
SWEEP TYPE MENU
LIN FREQ
LIST FREQ