HP 8753E manual Offsetting Limit Lines, Making Measurements

Offsetting Limit Lines

The limit offset functions allow you to adjust the limit lines to the frequency and output level of your device. For example, you could apply the stimulus offset feature for testing tunable filters. Or, you could apply the amplitude offset feature for testing variable attenuators, or passband ripple in filters with variable loss.

This example shows you the offset feature and the limit test failure indications that can appear on the analyzer display.

1.To offset all of the segments in the limit table by a fixed frequency, (for example, 3 MHz), press:

The analyzer beeps and a FAIL notation appears on the analyzer display, as shown in Figure 2-45.

Figure 2-45. Example Stimulus Offset of Limit Lines

2. To return to 0 Hz offset, press:
i.......s..:........::: :..,,,,,,	_ ,.,.__	/	/ _
		?/,.,	....:..::.

~~~~~~~~~~ @ Lxl)

3.To offset all of the segments in the limit table by a fixed amplitude, press:

~~~~~~~~~~~~ (yJ (xl)

The analyzer beeps and a FAIL notation appears on the analyzer display.

2-54 Making Measurements