HP 8568B Performance Tests And Adjustments Manual page 123

Reference Adjustment
Designator Name
IO
VE
VD
v c
VB
GA
GB
GC
GD
GE
GF
A l
Bl
Cl
E l
GAIN
Dl
5.8 GHz
2 GHz
Adjustment
Number
21 Adjusts 3.3 GHz oscillator drive current.
21 Adjusts mixer bias 18.6 to 22 GHz.
21 Adjusts mixer bias 12.5 to 18.6 GHz.
21 Adjusts mixer bias 5.8 to 12.5 GHz.
21 Adjusts mixer bias 2 to 5.8 GHz.
21 Adjusts IF gain 0.01 to 2.5 GHz.
21 Adjusts IF gain 2 to 5.8 GHz.
21 Adjusts IF gain 5.8 to 12.5 GHz.
21
Adjusts IF gain 12.5 to 18.6 GHz.
21 Adjusts IF gain 18.6 to 22 GHz.
21 Adjusts linearity 5.8 to 12.5 GHz (high end).
21 Adjusts linearity 12.5 to 18.6 GHz (low end).
21 Adjusts linearity 12.5 to 18.6 GHz (high end).
21 Adjusts linearity 5.8 to 12.5 GHz.
21 Adjusts linearity 12.5 to 18.6 GHz (low end).
21 Adjusts linearity 12.5 to 18.6 GHz (high end).
21 Adjusts linearity 18.6 to 22 GHz.
Adjusts linearity 18.6 to 22 GHz (high end).
21
21 Adjusts IF gain in external mixer band.
21 Adjusts flatness 0.01 to 2.5 GHz (low end).
21 Adjusts flatness 2 to 5.8 GHz (low end).
21 Adjusts flatness 5.8 to 12.5 GHz (low end).
21 Adjusts flatness 12.5 to 18.6 GHz (low end).
flatness 18.6 to 22
21 Adjusts
21 Adjusts flatness 0.01 to 2.5 GHz (high end).
21 Adjusts flatness 2 to 5.8 GHz (high end).
21 Adjusts flatness 5.8 to 12.5 GHz (high end).
21 Adjusts flatness 12.5 to 18.6 GHz (high end).
21 Adjusts flatness 18.6 to 22 GHz (high end).
21 Adjusts overall slope gain.
Adjusts auto-sweep tracking.
21
21 Adjusts auto-sweep tracking.
21 Adjusts auto-sweep tracking.
Adjusts tracking at 5.8 GHz (2 to 5.8).
21
21 Adjusts tracking at 2 GHz (2 to 5.8).
Adjustment Function
Adjustments 3-9