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N1913A/14A EPM Series Power Meters Performance Characteristics (Continued)
1 mW power reference
Power output
Accuracy (for two years)
Frequency
SWR
Connector type
Measurement speed
Using remote interface (over the GPIB, USB or LAN), three measurement speed modes are available as shown, along with the typical maximum
measurement speed for each mode.
With N1913A power meter
With N1914A power meter
Fast mode is for Keysight E-Series power sensors only.
Maximum measurement speed is obtained using binary output in free run trigger mode.
Table 1. Power sensors zero set, zero drift and measurement noise.
Model
E9300A, E9301A, E9304A
3
E9300B, E9301B
3
E9300H, E9301H
3
E4412A, E4413A
N8481A, N8482A, N8485A, N8487A, N8486AR, N8486AQ
8483A
N8481B, N8482B
8481D, 8485D, 8487D
N8481H, N8482H
R8486D, Q8486D
V8486A, W8486A
1� Within 1 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�
The 8480 Series sensors in the table do not include discontinued models�
Table 2. Noise multiplier.
Number of averages
Noise multiplier
– Normal mode
– x2 mode
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1.00 mW (0.0 dBm). Factory set to ± 0.4 % traceable to the National Physical Laboratories (NPL), UK
± 0.4% (25 ± 10 ºC)
± 1.2% (0 to 55 ºC)
50 MHz nominal
1.05 (typical), 1.08 (0 to 55 ºC)
Type-N (f), 50 Ω
Normal: 20 readings/second
x2: 40 readings/second
Fast: 400 readings/second, for Keysight E- Series power sensors only
The measurement speed is reduced, for example, with both channels in FAST mode, the typical maximum measurement
speed is 200 readings/second.
1
2
4
5.5
3.89
2.75
6.5
4.6
3.25
Zero set
± 500 pW
± 500 nW
± 5 nW
± 50 pW
± 25 nW
± 50 nW
± 50 μW
± 20 pW
± 5 μW
± 30 pW
± 200 nW
8
16
32
1.94
1
0.85
2.3
1.63
1
Zero drift
Measurement noise
1
< ± 150 pW
< 700 pW
< ± 150 nW
< 700 nW
< ± 1.5 nW
< 7 nW
< ± 15 pW
< 70 pW
< ± 3 nW
< 80 nW
< ± 10 nW
< 110 nW
< ± 10 μW
< 110 μW
< ± 4 pW
< 45 pW
< ± 1 μW
< 10 μW
< ± 6 pW
< 65 pW
< ± 40 nW
< 450 nW
64
128
256
0.61
0.49
0.34
0.72
0.57
0.41
2
512
1024
0.24
0.17
0.29
0.2
Page 7
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