Fluke 5520A Service Manual page 187

3. Enter 10 MHz into the Calibrator Mainframe. Allow the power meter reading to
stabilize, then enter the power meter's reading in Column B of Table 6-33.
4. Enter the next frequency listed in Table 6-33. Allow the power meter's reading to
stabilize, then enter the reading into Column A of the table.
5. Enter 10 MHz into the Calibrator Mainframe. Allow the power meter reading to
stabilize, then enter the power meter's reading in Column B of Table 6-33.
6. Repeat steps 4 and 5 for all of frequencies listed in Table 6-33. Continue until you
have completed Columns A and B.
7. When you have completed Columns A and B, press
Mainframe's output. Complete Table 6-33 by performing the calculations for each
column. Compare Column G to the specifications listed in the final column.
Table 6-33. High Frequency Flatness Verification at 5.5 V
Calibrator
Mainframe
A
Freq. (MHz)
30
70
120
290
360
390
400
480
570
580
590
600
Complete Columns A-G as follows:
A Enter the 437B present frequency Reading (W).
B Enter the 437B 10 MHz Reading (W).
C Apply power sensor correction factor for present frequency (W): CF * (Column A entry)
D Apply power sensor correction factor for 10 MHz (W): CF * (Column B entry)
E Compute and enter Error relative to 10 MHz (%): 100 * (sqrt(Column A entry) -
sqrt(Column B entry)) / sqrt(Column B entry)
F Enter the 10 MHz rms Error (%) for 5.5 V from Table 6-32, Column C.
G Compute and enter the Calibrator Mainframe Flatness Deviation (%): (Column E entry)
+ (Column F entry)
B
C D
10 MHz
to remove the Calibrator
E F G
SC600 Option
Verification
Calibrator
Mainframe
Flatness Spec. (%)
1.50
1.50
2.00
2.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
4.00
6
6-47