Source Spur Avoidance Tracking Adjustment - HP 8753E Service Manual

Source Spur Avoidance Tracking Adjustment

Required Equipment and 'Idols
BNC AIIigator Clip Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP P/N 8120-1292
BNC-to-BNC Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HP P/N 8120-1840
Antistatic Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP P/N 9300-1367
Antistatic Wrist Strap Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP P/N 9300-0980
Static-control Table Mat and Earth Ground Wire . . . . . . . . . . . . HP P/N 9300-0797
This adjustment optimizes tracking between the YO (YIG oscillator) and the
cavity oscillator when they are frequency offset to avoid spurs. Optimizing
YO-cavity oscillator tracking reduces potential phase-locked loop problems.
1. Mate the adapter to the BNC cable and connect the BNC connector end to
AUX INPUT on the HP 8753E rear panel. Connect the BNC center conductor
as shown in Figure 3-24.
BROWN
Figure 3-24. Location of All Test Points and A3 CAV ADJ Adjustments
Adjustments and Correction Constants
A l lTP1 A l lip10
G N D
C A V A D J
U N L K