Sweep time – Agilent Technologies N9340A User Manual

Page 76

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5

Key Reference

74

N9340A User’s Guide

Sweep Time

Selects the length of time the analyzer takes to
tune across the displayed frequency span (or, in
zero span, the time the analyzer takes to sweep the
full screen) using the knob, the arrow keys, or
numeric keypad.

Key Access:

[BW/SWP]

In non-zero spans:

When the sweep time is auto- coupled, the analyzer
selects the optimum (shortest) sweep time ranging
from 10 ms to 1000 s for the current settings. This
selection process is influenced by three factors:

• Frequency Span

• The selected Resolution Bandwidth

• The selected Video Bandwidth

Note that changing one of the three factors above
occurs the change of sweep time. The sweep time
is in direct ratio to frequency span and in reverse
ratio to the selected resolution bandwidth and
video bandwidth when auto- coupled.

In zero span:

The auto- coupled status is invalid in zero span.
You are only allowed to set the sweep time
manually. The sweep time ranges from 6 us to 200
s in zero span.

NOTE

Reducing the sweep time increases the sweep rate.

CAU-

CAUTION

When the sweep time is set to a value less than the

minimum auto-coupled value, an annotation “Data out of

range” appears in the active function block and the sweep

time is automatically converted to the minimum

auto-coupled value.

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