Instrument Accuracy Results - HP E4418A Service Manual

Range
Calibrator
Setting
3 µ W
10 µ W
30 µ W
100 µ W
300 µ W
1 mW
3 mW
10 mW
30 mW
100 mW
1. These performance limits are determined by the zero set specification of the power sensor
used in the measurement plus the measurement noise.
Note
Note
HP EPM-441A/442A Service Guide
Table 2-3: Instrument Accuracy Results
Channel A
1
Min
Actual Results
3.100 µ W
_______________
9.900 µ W
_______________
31.40 µ W
_______________
99.50 µ W
_______________
0.314 µ W
_______________
0.995 mW _______________
3.141 mW _______________
9.984 mW _______________
31.63 mW _______________
100.9 mW _______________
The nominal outputs for the 3 µ W, 30 µ W, 300 µ W, 3 mW, 10 mW,
30 mW and, 100 mW settings are 3.16 µ W, 31.6 µ W, 316 µ W,
3.156 mW, 10.03 mW, 31.78 mW, and 101.3 mW respectively.
It is not necessary to check instrument accuracy in dBm. The
power meter uses the same internal circuitry to measure power
and mathematically converts watts to dBm.
Performance Tests
Instrument Accuracy Test
Channel B
Actual Results
(HP EPM-442A
only)
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
_______________
1
Max
3.230 µ W
10.10 µ W
31.80 µ W
100.5 µ W
0.318 µ W
1.005 mW
3.171 mW
10.08 mW
31.94 mW
101.8 mW
2-9