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Using Spectrum Analyzer Features
learn About the Windows Display
Example: Use the windows display format to view the calibrator signal
1. Connect the CAL OUT signal to the cable TV analyzer’s INPUT 75
n.
Press (PRESET),
(-1,
START FREQ 0
a,
STOP FREQ 2
IGHz).
2. Turn on the windows display by pressing the WINDOWS ION) key. The
active window is indicated by a solid line around the display, rather than
a broken line. Press
ZONE
CENTER use the knob or step keys to move
the zone to include one of the harmonics. Notice that the span marked by
the zone markers in the upper window is shown as a full display in the
lower window.
NOTE
The upper window is not active so the trace is not updated, though the zone position is updated. The
upper window must be activated by pressing WINDOWS
@iZF)
to update the trace data.
3. Press ZONE PK RIGHT The cable TV analyzer identifies the first signal
to the right of the zone and moves the zone so that it is centered around
the new signal.
4.
Press ZONE SPAN and use the knob, step keys, or the data entry keys
to change the zone span to include two signals. If the lower window is
active you will notice that the span changes corresponding to the changes
in the zone marked on the upper window. (If the lower window is not
active press WINDOWS
[jGY?Y]
to make it active.)
5.
Press ZONE PK RIGHT and ZONE PK LEFT and observe the movement
of the zone and the changes in the lower window.
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