Fluke 5820A, Service Manual

Page: 81 / 158

Calibration and Verification
Verification
3
3-43
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. (%)
0.25
50 MHz
±
1.54
100 MHz
±
1.54
150 MHz
±
2.04
200 MHz
±
2.04
250 MHz
±
2.04
300 MHz
±
2.04
350 MHz
±
3.54
400 MHz
±
3.54
450 MHz
±
3.54
500 MHz
±
3.54
550 MHz
±
4.04
600 MHz
±
4.04
0.399
50 MHz
±
1.52
100 MHz
±
1.52
150 MHz
±
2.02
200 MHz
±
2.02
250 MHz
±
2.02
300 MHz
±
2.02
350 MHz
±
3.52
400 MHz
±
3.52
450 MHz
±
3.52
500 MHz
±
3.52
550 MHz
±
4.02
600 MHz
±
4.02
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)].