Wavetek 147 Specifikace stáhnout pdf (Strana 156)

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Spectrum Analyzer Mode: Spectrum Mode Operation

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Fig. 7-1 The SPECTRUM Mode Main Screen

Below are the primary functions of the soft keys in the SPECTRUM screen.

Notice that the Ref Level in dBmV and Scale Factor in dB/div are always

displayed at the top of the graph. The center frequency is displayed below

the title bar in the top right corner. The span is displayed in the status bar

above the graph.

Press the Amplifier/Low Pass Filter soft key to enter the

AMPLIFIER/LOW PASS FILTER screen.

Press the Frequency soft key to get to the FREQUENCY

screen

The Level soft key takes you to the LEVEL screen.

Use this soft key to change between markers A and B. These

are two vertical markers on the display. The dotted line is the

active marker; the solid line does not move. You can move the

active marker with the left and right diamond keys The A and B

marker lines below the graph show the difference in level

between the two selected frequencies.

This soft key will reset the Maximum Hold algorithm in the

instrument. When grayed, the Maximum Hold is disabled.

This mode displays an amplitude versus time screen.

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