HP Cable Box 8591C manual Limit-line Segments

Using Spectrum Analyzer Features

Using limit-line Functions

Selecting the Segment Pressing SELECT SEGMENT specifies the segment number to be entered or

Numberedited. Limit lines are created by entering frequency or time values and amplitude values into a limit-line table. The frequency/time and amplitude values specify a coordinate point from which a limit-line segment is drawn. The coordinate point is the lowest frequency or time point of the line segment. Limit lines are constructed from left to right. The segment is defined by its beginning point. See Figure 3-6.

N O T E

Up to 20 segments can be specified for an upper or lower limit-line table.

When entering a limit-line segment, the frequency/time and amplitude values will be listed as asterisks I***) until new values are entered. The new segment will be listed last until both the frequency for time) and the amplitude values have been entered. Once the frequency/time and an amplitude value are entered, the segment will be sorted into the limit-line table according to frequency or time.

II

o-											0
1											1 1
	. . . . . . . . . f . .	. . . . . . . j	I	......... f	. . . f . . . .	. . . . . i	. . . j	. . . i	. . f . . .	. . . . .	. More
											1 QI 2
CENTER 38808		HHz					SPAN	288.8	NHz		T
URES BW		3.8 MHz		YUBW	388	kHz	SWP	28.8	nl5ec

Figure 3-6. Limit-line Segments

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