32 Chapter1
Quick Start Guide
Making a Basic Measurement
Figure 1-5 300 MHz Center Frequency
2. Set the frequency span.
a. Press
SPAN. Note that SPAN is now displayed in the active
function block, identifying it as the current active function.
b. To reduce the frequency span—for example, to 20 MHz—either
press 20 MHz on the data keypad, or use the
⇓ key to "step down"
to this value. (Like data keys, step keys can also be used to
change the numeric value of the active function.)
The resulting display is shown in Figure 1-6. Note that the
resolution and video bandwidths are coupled to the frequency
span; they are automatically adjusted to appropriate values for a
given span. Sweeptime is also a coupled function.
c. Press
SWEEP and notice the SWP TIME AUTO MAN softkey. The
softkey can be used to make the sweeptime be auto-coupled or
manually controlled; the underline indicates which part of the
function is enabled. For example, the
SWP TIME AUTO MAN
function is auto-coupled when AUTO is underlined.
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