HP Cable Box 8591C manual Learn About the Windows Display

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.

N O T E

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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