Agilent Technologies HP 8566B Spécifications Page 342

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Vue de la page 341
2 1. Frequency Response Adjustments
STOP FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.6
GHz
RES BW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 MHz
REFERENCE LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -7 dBm
LOG SCALE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.5
dB/DIV
SWEEP TIME
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
set
168. On the synthesized sweeper, key in
Icw]
13.1
GHz.
Note
The POWER LEVEL of the synthesized sweeper should still be leveled
to a calibrated -10.00
dBm
at 100 MHz at the spectrum analyzer RF
INPUT from step 55.
169.
170.
171.
172.
173.
174.
175.
176.
If the
AllA
YT.0,
A6A8
YTX, or
A6A12
YTX Driver
Assembly have been repaired or replaced, adjust (YTX Delay
Compensation) potentiometers
A6A12R25
D2 and
A6A12R24
D3
45”
clockwise from
fully
counterclockwise.
On the spectrum analyzer, key in MARKER [PEAK SEARCH),
(SH’FT)
IGHz)/.
On the spectrum analyzer, press
(PRESEL
PEAK) and wait for the
preselector peaking routine to complete. Record the Preselector
DAC
value
in the 1 second SWEEP TIME column of
‘lhble
3-15.
‘lhble
3-15.
Preselector Delay Compensation DAC Values
1
Preselector DAC Value
Trial Number
5
Average
Value
Repeat step 171 to record four additional Preselector DAC value
entries in the
1s
SWEEP TIME column of
‘Iable
3-15.
On the spectrum analyzer, key in SWEEP TIME
(Z),
MARKER
(
PEAK
SEARCH_).
On the spectrum analyzer, press
(PRESEL
PEAK]
and wait for the
preselector peaking routine to complete. Record the Preselector
DAC
value
in
the
m
SWEEP TIME column of
‘Ihble
3-15.
Repeat step 174 to record four additional Preselector DAC
value
entries in the
IAUTO)
SWEEP TIME column of
Table
3-15.
Calculate the average Preselector DAC
value
for the 1 second
SWEEP TIME and (AUTO) SWEEP TIME settings, and enter them
in
‘Iable
3-15. Subtract the average Preselector DAC
value
for 1
second SWEEP TIME from the value for
(AUTO]
SWEEP TIME,
and record the difference in the following line:
preselector DAC value difference:
3-202
Adjustments
Vue de la page 341
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