Agilent Technologies 8590 Series Service Manual page 184

Making Adjustments: If 3335A Source Not Available
6a. Cal Attenuator Error
34.The 8 dB attenuator step error is the MKR ∆ reading minus the
35.Enter the 8 dB attenuator step error in
Table 2a-2 A12 Amplitude Control Assembly Attenuator Errors
1 dB Step Attenuator
Setting (dB)
OFF
9
7
8
9
Entering Attenuator Error Correction Data
36.Press the following analyzer keys.
37.When the analyzer prompts you with the message
38.When the analyzer prompts you to enter the 16 dB step, enter
184
error in the 1 dB step attenuator when set to 9 dB and 1 dB in
2a-1.
8 dB atten step error =
Analyzer MKR ∆ - (9dB atten error - 1 dB atten error)
Reference Level Settings
ON OFF
8 −18
−16
5
−17
4
−18
1
PRESET
75 Ω input only:
, −2001,
FREQUENCY
, ,
CAL More 1 of 4
,
SERVICE CAL SET ATTN ERROR
Note that the frequency of −2001
routines.
SERVICE CAL
ENTER CAL ATTEN ERROR, enter the data from
terminate with the reverse sign using the
example, if the error recorded in
−dBm
terminate with
0 dBm. At the completion of entering the 16 dB error, the analyzer
will reset.
Table
(dBm)
ON
−17
−14
−13
−10
,
AMPLITUDE More 1 of 2
Hz
More 2 of 4
is necessary to access the
Hz
Table 2a-2
.
2a-2.
Attenuator Error
Step (dB)
1
2
4
8
,
AMPTD UNITS, dBm
Table 2a-2 and
−dBm
or keys. For
dBm
is 0.07, enter 0.07 and
Chapter
Table
2a