Agilent Technologies 8590L Service Manual page 101

Making Adjustments
15. Frequency Response of the 8590L, 8591C, and 8591E
23.Adjust the frequency synthesizer AMPLITUDE for a MKR
amplitude reading of −14.00 dBm±.05 dB. Record the frequency
synthesizer AMPLITUDE setting here.
AMPLITUDE setting (4 MHz)____________________dBm
24.Subtract the frequency synthesizer AMPLITUDE setting (4 MHz)
recorded in step 23
setting (41 MHz) recorded in
Amplitude Relative to 41 MHz here.
4 MHz Amplitude Relative to 41 MHz____________________dBm
25.Add the result from
that result in Column 2 of
the 4 MHz error (relative to 300 MHz).
75 Ω input only: Starting with the error at 41 MHz, add Column 3
(System Error) to Column 2 (Error Relative to 300 MHz) and record
the result in Column 5 (Corrected Error Relative to 300 MHz).
Entering Flatness Correction Data
26.Enter the pass code by pressing the following analyzer keys.
PRESET
, −2001,
FREQUENCY
75 Ω input only:
AMPLITUDE, More 1 of 2
27.To access the flatness correction menu, press the following analyzer
keys.
,
CAL More 1 of 4
SERVICE CAL
FLATNESS DATA
Perform the next step only if all the flatness correction data must be
replaced in memory due to the repair or replacement of the A16
processor/video assembly.
102
from the frequency synthesizer AMPLITUDE
step 20. Record the result as the
step 24 to the reading from
Table 2-6 (Option 001 only: Column 5) as
Hz
,
More 2 of 4
step 10 and enter
, ,
AMPTD UNITS dBm
Chapter 2