Agilent Technologies 8753ET User Manual page 195
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- Service manual (618 pages) ,
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11. To activate the gating function to remove any unwanted responses, press:
GATE ON
As shown in
Figure
3-4, only response from the main path is displayed.
NOTE
You may remove the displayed response from inside the gate markers by pressing
and turning the front panel knob to exchange the "flag" marker positions.
Figure 3-4
Gating in a Time Domain Transmission Example Measurement
12. To adjust the gate shape for the best possible time domain response, press
between minimum, normal, wide, and maximum. Each gate has a different passband flatness, cutoff rate,
and sidelobe levels. A detailed discussion of gating and gate shape selections is located in
page 3-35
and
"Selecting Gate Shape" on page
The passband ripple and sidelobe levels are descriptive of the gate shape. The cutoff time is the time
between the stop time (6 dB on the filter skirt) and the peak of the first sidelobe, and is equal on the left
and right side skirts of the filter. The minimum gate span is just twice the cutoff time because it has no
passband.
Making Time Domain Measurements
Making Transmission Response Measurements
3-36.
SPAN
and select
GATE SHAPE
"Gating" on
3- 7
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