HP 8559A User Manual

ADJUSTMENTS MODEL 8559A
ADJUSTMENTS
5 - 28. FREQUENCY RESPONSE ADJUSTMENTS (Cont'd)
3 to 9 GHz Adjustment
39.
Change synchronizer POLARITY to
- .
40.
Change spectrum analyzer Amplitude Scale to 10 dB/DIV and FREQUENCY BAND GHz to 3 - 9.
41. Adjust sweep oscillator for swept output from 3 to 9
GHz.
42. Adjust Tuning Voltage Circuit GAIN and OFFSET controls to phase - lock swept signal from 3 to 9 GHz.
Refer to Figure 5-19c.
43. Change spectrum analyzer Amplitude Scale to 1 dB/DIV.
44. Adjust A12R83 V2 - (bias), A12R59 3A (offset), and A12R49 3B (tilt) for best overall flatness of trace
from 3 to
9 GHz with trace approximately centered about the sixth horizontal graticule line on the CRT.
45. Total deviation of trace from 3 to 9
GHz should not exceed 3.0 dB.
9 to 15 GHz Adjustment
Change synchronizer POLARITY to + .
Change spectrum analyzer Amplitude Scale to 10 dB/DIV and FREQUENCY BAND GHz to 9 - 15.
Adjust sweep oscillator for swept output from 9 to 15
GHz.
Adjust Tuning Voltage Circuit GAIN and OFFSET controls to phase - lock swept signal from 9 to 15 GHz.
Refer to Figure 5 - 19d.
Change spectrum analyzer Amplitude Scale to 1
dB/DIV.
Adjust A12R87 V2 + (bias), A12R60 4A (offset), and A12R51 4B (tilt) for best overall flatness of trace
from 9 to 15
GHz with trace approximately centered about the sixth horizontal graticule line on the CRT.
Total deviation of trace from 9 to 15
GHz should not exceed 3.6 dB.
6 to 16 GHz Adjustment
53. Change synchronizer POLARITY to - .
54. Change spectrum analyzer Amplitude Scale to 10 dB/DIV and FREQUENCY BAND GHz to 6 - 15.
55. Adjust sweep oscillator for swept output from 6 to 15
GHz.
56. Adjust Thing Voltage Circuit GAIN and OFFSET controls to phase - lock swept signal from 6 to 15 GHz.
Refer to Figure 5 - 19e.

HP 8559A Specifications

General

Brand	HP
Model	8559A
Category	Measuring Instruments
Language	English