Agilent Technologies 8719D, User Manual

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Increasing Sweep Speed
You can increase the analyzer sweep speed by avoiding the use of some features that require
computational time for implementation and updating, such as bandwidth marker tracking.
You can also increase the sweep speed by making adjustments to the measurement settings.
The following suggestions for increasing sweep speed are general rules that you should
experiment with.
n
decrease the frequency span
n
set the auto sweep time mode
n
widen the system bandwidth
n
reduce the averaging factor
n
reduce the number of measurement points
n
set the sweep type
n
use chop sweep mode
The hardware of the network analyzer sweeps the frequency range in separate bands, where
switching from band to band takes time. Modify the frequency span to eliminate as many band
switches as possible while maintaining measurement integrity. Refer to the following table to
identify the analyzer’s band switch points:
5-6. Band Switch Points
Frequency Span
1 50 MHz to 110 MHz
2 110 MHz to 230 MHz
3 230 MHz to 470 MHz
4 470 MHz to 698 MHz
5 698 MHz to 1.17
6 1.17 to 1.878
7 1.878 to 2.55
8 2.55 to 4.71
9 4.71 to 8.256
10 8.256 to 13.562
11 (HP 113.562 to 20.05
I
12 (HP 20.05 to 25.0
I
13 (HP
25.0 to 40.0
I
Auto sweep time mode is the default mode (the preset mode). This mode maintains the fastest
sweep speed possible for the current measurement settings.
Optimizing Measurement Results