Spurs Search Procedure Without A Filter - HP 8753E Service Manual

7. Observe the analyzer for the results of this adjustment routine:
procedure.
Troubleshooting. n

Spurs Search Procedure without a Filter

observe and mark the target spur
9. The target spur will appear in many variations Often it will be difficult to
identify positively; occasionally it will be nearly impossible to identify. Do
not hesitate to press $%@I?$~~ as many times as necessary to thoroughly
inspect the current span.
The target spur usuaIly appears as one of a group of four evenly spaced
spurs as in Figure 3-12. The target spur is on the right most spur (fourth
from the left). On any particular sweep, one, any, or all of the spurs may be
large, smalI, visible, invisible, above or below the reference line.
Figure 3-12.
. ../.. : : . . + . . . < <. . . . . . . d <. . . . , .
Typical Display of Four Spurs without a Filter
Adjustments and Correction Constants 3-31