Agilent Technologies HP 8566B Spécifications Page 324

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2 1. Frequency Response Adjustments
Band
B,
2.0
GHz
to
5.8
46. On the spectrum analyzer, key in
@?iTEiC),
CFREQUENCY
SPAN) 0
GHz
Hz, (CENTER FREQUENCY) 4
GHz,
SWEEP @iKZ].
47. Connect the DVM to
A6AlZTP3
(-9 V), and connect the
DVM ground to
A6A12TP2
(YTX COM) in the RF Section. See
Figure 3-90 for the location of
A6A12TP3
and
A6A12TP2.
Note
f9
Vdc Reference Supplies adjustment
A6A12R113
-9 V affects
YTX/YTO
tracking, YTX diode bias, and Slope Generator Upper/Lower
Segment frequency breakpoints in all preselected frequency bands
(Bands B, C, D, and E, 2
GHz
-
22
GHz).
48. If necessary, readjust
17-turn
potentiometer
A6A12R113
-9 V
for a DVM indication of -9.000 fO.OO1 Vdc.
49. Connect the DVM to
A6A12TP5
(-525
V/GHz).
Leave the DVM
ground connected to
A6A12TP2
(YTX COM). See Figure 3-90 for
the location of
A6A12TP5.
50. Adjust 22-turn (YTX IF Offset) potentiometer
A6A12R85
B for a
DVM indication of -2.100
f0.001
Vdc. See Figure 3-90 for the
location of
A6A12R85
B.
Note
YTX Linearity adjustments
A6AlOR40
LBl,
A6AlOR41
LB2,
A6AlOR42
LB3,
A6AlOR70
LB4,
A6AlOR31
LRl,
A6A610R34
LR2,
A6AlOR37
LR3, and
A6AlOR76
LR4 affect
YTX/YTO
tracking in all
preselected frequency bands (Bands B, C, D, and E, 2
GHz
-
22
GHz).
These adjustments overlap and have a cumulative effect on
YTXKI’O
tracking with increasing frequency.
51. If the
A6AlO
Miscellaneous Bias/Relay Driver Assembly or
A6A7
YTX Current Driver Assembly has been repaired or replaced,
or if the
A6A8
YTX has been replaced, adjust 22-turn (YTX
Linearity) potentiometers
A6AlOR40
LBl,
A6AlOR41
LB2,
A6AlOR42
LB3,
A6AlOR70
LB4,
A6AlOR31
LRl,
A6A610R34
LR2,
A6AlOR37
LR3, and
A6AlOR76
LR4 fully counterclockwise.
See Figure 3-90 for the location of YTX Linearity adjustments
A6AlOR40
LBl,
A6AlOR41
LB2,
A6AlOR42
LB3,
A6AlOR70
LB4,
A6AlOR31
LRl,
A6A610R34
LR2,
A6AlOR37
LR3, and
A6AlOR76
LR4.
52. On the spectrum analyzer, key in
@=!ZTiCJ,
m
CPRESEL
PEAK_)
=,
ISHIFT_)
TRACE A
c-1
b.
Set the spectrum analyzer
controls as follows:
START FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.2.0
GHz
STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.8 GHz
RES BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.3
MHz
REFERENCE LEVEL
. . . . . . . . . . . . . . . . . . . . -7
dBm
LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 dB/DIV
SWEEP TIME
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 ms
53. Connect the equipment as shown in Figure 3-94, with one
resistive output of the power splitter connected to the power
meter/power sensor using an APC 3.5 (m) to Type N (f) adapter,
and the second resistive output connected to the diode detector.
Connect the diode detector SMC output to the synthesized
3-184
Adjustments
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