Atec Agilent-E4418B-E4419B - Manual (Page 5)

E4418B/9B EPM Series power meter performance characteristics
(continued)
Table 1
Table 2
No. of averages
Noise multiplier
Normal mode
x2 mode
1
5.5
6.5
2
3.89
4.6
4
2.75
3.25
8
1.94
2.3
16
1
1.63
32
0.85
1
64
0.61
0.72
128
0.49
0.57
256
0.34
0.41
512
0.24
0.29
1024
0.17
0.2
Model Zero set
±500 pW
±500 nW
±5 nW
±50 pW
±25 nW
±25 μW
±2.5 μW
±50 nW
±50 μW
±20 pW
±5 μW
±30 pW
±200 nW
Zero drift 1
<±150 pW
<±150 nW
<±1.5 nW
<±15 pW
<±3 nW
<±3 μW
<±0.3 μW
<±10 nW
<±10 μW
<±4 pW
<±1 μW
<±6 pW
<±40 nW
Measurement noise 2
<700 pW
<700 nW
<7 nW
<70 pW
<80 nW
<80 μW
<8 μW
<110 nW
<110 μW
<45 pW
<10 μW
<65 pW
<450 nW
1. Within one hour after zero set, at a constant temperature, after
a 24-hour warm-up of the power meter.
2. The number of averages at 16 for normal mode and 32 for x2
mode, at a constant temperature, measured over a one-minute
interval and two standard deviations. For E-Series sensors, the
measurement noise is measured within the low range. Refer to
the relevant sensor manual for further information.
3. Specification applies to the low power path, 15% to 75% relative
humidity.
E9300A, E9301A, E9304A 3
E9300B, E9301B 3
E9300H, E9301H 3
E4412A, E4413A
N8481A, N8482A, N8485A,N8487A,
N8486AQ, N8486AR
N8481B, N8482B
N8481H, N8482H
8481A, 8482A, 8483A, 8485A, 8487A,
R8486A, Q8486A
8481B, 8482B
8481D, 8485D, 8487D
8481H, 8482H
R8486D, Q8486D
V8486A, W8486A
5
Settling time 1
Table 3
No. of averages
Settling time with
E-Series sensors (s)
Normal mode
x2 mode
Settling time with N8480
Series sensors (s)
Normal mode
x2 mode
Settling time with 8480
Series sensors (s)
Normal mode
x2 mode
1
0.07
0.04
0.15
0.15
0.15
0.15
2
0.12
0.07
0.2
0.18
0.2
0.18
4
0.21
0.12
0.3
0.22
0.3
0.22
8
0.4
0.21
0.5
0.35
0.5
0.35
16
1
0.4
1.1
0.55
1.1
0.55
32
1.8
1
1.9
1.1
0.9
1.1
64
3.3
1.8
3.4
1.9
3.4
1.9
128
6.5
3.4
6.6
3.5
6.6
3.5
256
13
6.8
13
6.9
13
6.9
512
27
14.2
27
14.5
27
14.5
1024
57
32
57
33
57
33
Manual filter, 10-dB decreasing power step for normal and x2 modes (not across range switch points for
E-Series and N8480 Series sensors)
*E-Series sensors in Fast mode (using free run trigger), within the range –50 dBm to +17 dBm, the settling time is:
E4418B: 10 ms 2
E4419B: 20 ms 2
1. Settling time: 0 to 99% settled readings over the GPIB
2. When a power step crosses through the sensor’s auto-range switch point, add 25 ms. Refer to the relevant sensor manual for switch point information.