Measurement Noise; Table 5-2 Noise Multiplier; Table 5-3 Power Sensor Specifications - Agilent Technologies E4419B User Manual

5 Specifications

Measurement Noise

Power sensor dependent (refer to
Averaging effects on measurement noise. Averaging over 1 to 1024 readings is
available for reducing noise.
particular power sensor with the number of averages set to 16 for normal
mode and 32 for x2 mode. Use the "Noise Multiplier" for the appropriate mode
(normal or x2) and number of averages to determine the total measurement
noise value.
For example, for an Agilent 8481D power sensor in normal mode with the
number of averages set to 4, the measurement noise is equal to:

Table 5-2 Noise Multiplier

Number of Averages
Noise Multiplier
(Normal Mode)
Noise Multiplier
(x2 mode)

Table 5-3 Power Sensor Specifications

170
1 2 4
5.5 3.89 2.75
6.5 4.6 3.25
Power Sensor
3
Agilent 8481A
3
Agilent 8481B
3
Agilent 8481D
3
Agilent 8481H
3
Agilent 8482A
3
Agilent 8482B
3
Agilent 8482H
3
Agilent 8483A
Table 5-2
Table 5-3 provides the measurement noise for a
(<45 pW x 2.75) = <124 pW
8 16 32
1.94 1.0 0.85
2.3 1.63 1.0
Zero Drift
<±10 nW
<±10 mW
<±4 pW
<±1 mW
<±10 nW
<±10 mW
<±1 mW
<±10 nW
and Table 5-3).
64 128 256
0.61 0.49 0.34
0.72 0.57 0.41
1
Measurement Noise
<110 nW
<110 mW
<45 pW
<10 mW
<110 nW
<110 mW
<10 mW
<110 nW
E4419B Power Meter User's Guide
512 1024
0.24 0.17
0.29 0.2
2