Agilent Technologies 8360 L Series, Service Manual

Page: 325 / 603

4. On the syn thesizer, zero the digital ALC calibration for the 0 dB attenuator setting for all
frequency ranges:
4 SERVICE 5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Adjust Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DigALC Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AtnStep To Cal 4
0
5 4
dB
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Cal Freq Range Lo Band
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ALC Cal Array (Atn, Freq) Zero
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Cal Freq Range Hi Band
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ALC Cal Array (Atn, Freq) Zero
Note
The default v alues given in the next step are a general starting p oint. If the
curren t ALC p o w er accuracy is within 1 dB, few er rep etitions are required if
y ou start with the existing calibration constan ts unc hanged.
5. Set the default v alues given in T able 3-8 in to the corresp onding ALC calibration
constan ts. On the syn thesizer, set:
4 SERVICE 5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Adjust Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Calib Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Select Cal En ter the n um b er of the calibration constan t from T able 3-8 and terminate
the en try with 4 ENTER 5.
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Modify Cal En ter the default v alue from T able 3-8 and terminate the en try with 4
ENTER
5.
T able 3-8. ALC Calibration Constants and Default V alues
ALC Calibration Constan t Default V alue
Lo w Band 0.01 to 2.0 GHz
1
#265 L VL D A C Ofs Lo Bnd 120
#252 L VL D A C Gain Lo Bnd 20
#284 ALC Det Ofs; Lo 142
#293 ALC Log Brkpt; Lo 140
High Band 2.0 to 20 GHz
#264 L VL D A C Ofs Hi Bnd 0
#251 L VL D A C Gain Hi Bnd 20
#283 ALC Det Ofs; Hi 134
#292 ALC Log Brkpt; Hi 131
1 Disregard if b eyond your synthesizer's capability .
Lo w Band ALC P o w er Accuracy Adjustment
6. On the syn thesizer, set:
4 CW 5 4 1 5 4 GHz 5
4 SERVICE 5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Adjust Menu
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Calib Menu
7. On the syn thesizer, set:
4
POWER LEVEL
5 First p o w er lev el in T able 3-9
8. Select the rst calibration constan t in T able 3-9 :
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
Select Cal 4
265
5 4
ENTER
5
3-68 Adjustments
ALC P o w er Lev el Accuracy
Agilent 8360