Tektronix WCA200A, User Manual

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Functional Overview
2- 20
WCA230A & WCA280A User Manual
When using the up and down (
YB
) keys to increase or decrease a setting value,
you can change the step size (the amount per press by which the up or down key
changes the setting value) with the Step Size side key. (The step size cannot be
changed for menu items that do not display
Step Size
.)
In the example shown in Figure 2--18, the step size for the center frequency is set
to 100 kHz; the displayed frequency set value changes by 100 kHz step for each
press of the up or down key.
Step size
Figure 2- 18: Step size for the center frequency
Step Size for Center Frequency. The step size is set with the Step Size side key.
The center frequency step size can be also set with two side keys in the
Frequency/Channel menu (see Figure 2--19 below).
H
Center Freq Step Same As C.F. Useful for quickly locating harmonics of a
signal seen at the center frequency.
H
Center Freq Step Same As Span.
Useful for quickly analyzing a larger
frequency area without overlapping span windows.
Sets the center frequency step size to the
same value as the center frequency.
Sets the center frequency step size to the
same value as the span.
Figure 2- 19: Changing the step size to the predetermined values
Changing the Step Size