Fluke 5820A, Service Manual

Page: 78 / 158

5820A
Service Manual
3-40
Table 3-21. High Frequency Flatness Verification (cont.)
Amplitude
(V)
Calibrator
Mainframe
Freq.
(MHz)
A B
50 kHz
C D E
Calibrator Mainframe
Flatness Spec. (%)
0.025
50 MHz
±
1.90
100 MHz
±
1.90
150 MHz
±
2.40
200 MHz
±
2.40
250 MHz
±
2.40
300 MHz
±
2.40
350 MHz
±
3.90
400 MHz
±
3.90
450 MHz
±
3.90
500 MHz
±
3.90
550 MHz
±
4.40
600 MHz
±
4.40
0.039
50 MHz
±
1.75
100 MHz
±
1.75
150 MHz
±
2.26
200 MHz
±
2.26
250 MHz
±
2.26
300 MHz
±
2.26
350 MHz
±
3.75
400 MHz
±
3.75
450 MHz
±
3.75
500 MHz
±
3.75
550 MHz
±
4.26
600 MHz
±
4.26
Complete Columns A-E as follows:
A Enter the 437B present frequency Reading (W).
B Enter the 437B 50 kHz Reading (W).
C Apply power sensor correction factor for present frequency (W): CF * (Column A
entry)
D Apply power sensor correction factor for 50 kHz (W): CF * (Column B entry)
E Compute and enter Error relative to 50 kHz plus floor (%): 100 * [(sqrt(Column
B/Column D entry) -1)
±
100*(100
µ
V/nominal voltage)].