Datasheet

Page 8
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Performance Characteristics (continued)
Power linearity
1
The N8480 Series power sensors’ linearity is negligible except for the power range specified in the table below.
Sensor model Power range Linearity (25 ±10°C) Linearity (0 to 55°C)
N8481A, N8482A, N8485A, N8487A, N8488A,
N8486AR, N8486AQ
–1 to < +15 dBm ±0.52% ±0.80%
+15 to +20 dBm ±0.80% ±1.90%
N8481B, N8482B +29 to < +39 dBm ±0.52% ±0.80%
+39 to +44 dBm ±1.66% ±2.75%
N8481H, N8482H +17 to < +30 dBm ±0.77% ±1.05%
+30 to +35 dBm ±2.84% ±3.93%
1. After zero and calibration at ambient environment conditions
% Error
1
0.5
–0.5
–1
5
0
–5 10 15 20 25
Input power (dBm)
% Error
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
5 10 15 20 25
Input power (dBm)
% Error
1.0
0.8
0.6
0.4
0.2
–0.2
–0.4
–0.6
–0.8
–1.0
5
0
–5 10 15 20 25
Input power (dBm)
Typical N8481A/2A/5A/7A/8A and N8486AR/AQ power linearity at 25°C, after zero and calibration with associated measurement uncertainty
Typical N8481B/2B power linearity at 25°C, after zero and calibration with associated measurement uncertainty
Typical N8481H/2H power linearity at 25°C, after zero and calibration with associated measurement uncertainty
Power level Measurement uncertainty
–1 to +20 dBm ±0.35%
Power level Measurement uncertainty
29 to 40 dBm ±0.35%
40 to 44 dBm ±1.21%
Power level Measurement uncertainty
17 to 30 dBm ±0.60%
30 to 35 dBm ±2.39%