N9030B PXA Signal Analyzer Service Guide 373
Service and Diagnostics Menus
Service Key Descriptions
LO
Immediately executes an alignment of the LO subsystem. The
instrument will stop any measurement currently underway, perform
the alignment, then restart the measurement from the beginning.
A failure of LO will set the Error Condition “Align LO failed”. A failure
will not employ new LO alignment data.
Successful completion of LO will clear the Error Condition “Align LO
failed”.
The Advisory Event “Alignment complete” is displayed when the
alignment is complete.
Align LO can be interrupted by pressing the Cancel (ESC) front-panel
key. When this occurs, no new LO alignment data will be employed.
IF
Immediately executes an alignment of the IF subsystem. The
instrument will stop any measurement currently underway, perform
the alignment, then restart the measurement from the beginning.
A failure of IF will set the Error Condition “Align IF failed”. A failure will
not employ new IF alignment data.
Successful completion of IF will clear the Error Condition “Align IF
failed” and clear bit 6 in the Status.
The Advisory Event “Alignment complete” is displayed when the
alignment is complete.
Align IF can be interrupted by pressing the Cancel (ESC) front-panel
key. When this occurs, no new IF alignment data will be employed.
Current IF Flatness
Immediately executes an alignment of the Current IF Flatness, for the
purpose of improving the absolute amplitude accuracy within FFT
Sweeps and improving the group delay in some digital demodulation
measurements. The instrument will stop any measurement currently
underway, perform the alignment, then restart the measurement
from the beginning.
The Advisory Event “Alignment complete” is displayed when the
alignment is complete.
Align Current IF Flatness can be interrupted by pressing the
Cancel
(ESC)
front-panel key. When this occurs, no new Current IF Flatness
alignment data will be employed.
RF
Содержание N9030B
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Страница 356: ...356 N9030B PXA Signal Analyzer Service Guide Block Diagrams Block Diagrams Analog IF Block Diagram ...
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Страница 418: ...418 N9030B PXA Signal Analyzer Service Guide Replaceable Parts Hardware Figure 15 17 AIF Cables Figure 15 18 DIF Cables ...
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