Chapter 3 3-57
Adjustments and Correction Constants
Sequences for Mechanical Adjustments
Sequences for the Fractional-N Frequency Range Adjustment
— Sequence FNADJ sets up A14 (FRAC N Digital) VCO. —
DISPLAY
DUAL CHAN ON
SYSTEM
SERVICE MENU
ANALOG BUS ON
SWEEP SETUP
NUMBER OF POINTS 11 x1
COUPLED CHAN OFF
START 36 M/u
STOP 60.75 M/u
SWEEP SETUP
SWEEP TIME 12.5 k/m
MEAS
ANALOG IN 29 x1 (FN VCO TUN)
SCALE/REF 0.6 x1
REF VALUE −7 x1
MKR
CH 2
SWEEP SETUP
CW FREQ 31.0001 M/u
SWEEP TIME 12.375 k/m
MEAS
ANALOG IN 29 x1 (FN VCO TUN)
SCALE/REF .2 x1
REF VALUE 6.77 x1
MKR 6 k/m
— Sequence FNCHK checks the VCO adjustment. —
SWEEP SETUP
CW FREQ 1 G/n
SYSTEM
SERVICE MENU
ANALOG BUS ON
SERVICE MODES
FRAC N TUNE ON
MEAS
ANALOG IN 29 x1
MKR
SCALE/REF
REF VALUE 7 x1
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