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8487D Datasheet(PDF) 13 Page - Keysight Technologies |
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8487D Datasheet(HTML) 13 Page - Keysight Technologies |
13 / 28 page 13 | Keysight | N1913A and N1914A EPM Series Power Meters / E-Series and 8480 Series Power Sensors - Data Sheet E-Series CW Power Sensor Specifications (continued) Calibration factor (CF) and reflection coefficient (Rho) Calibration factor and reflection coefficient data are provided at 1 GHz increments on a data sheet included with the power sensor. This data is unique to each sensor. If you have more than one sensor, match the serial number on the data sheet with the serial number on the power sensor you are using. The CF corrects for the frequency response of the sensor. The EPM power meter automatically reads the CF data stored in the sensor and uses it to make the corrections. For power levels greater than 0 dBm, add 0.5%/dB to the calibration factor uncertainty specification. Reflection coefficient (Rho) relates to the SWR according to the following formula: SWR = 1 + Rho/1 – Rho. Maximum uncertainties of the CF data are listed in Table 5a, for the E4412A power sensor, and Table 5b for the E4413A power sensor. The uncertainty analysis for the calibration of the sensors was done in accordance with the ISO/TAG4 Guide. The uncertainty data reported on the calibration certificate is the expanded uncertainty with a 95% confidence level and a coverage factor of 2. Table 5a. E4412A calibration factor uncertainty at 1 mW (0 dBm) Frequency Uncertainty*(%) 10 MHz 1.8 30 MHz 1.8 50 MHz Reference 100 MHz 1.8 1.0 GHz 1.8 2.0 GHz 2.4 4.0 GHz 2.4 6.0 GHz 2.4 8.0 GHz 2.4 10.0 GHz 2.4 11.0 GHz 2.4 12.0 GHz 2.4 14.0 GHz 2.4 16.0 GHz 2.6 18.0 GHz 2.6 Table 5b. E4413A calibration factor uncertainty at 1 mW (0 dBm) Frequency Uncertainty*(%) 50 MHz Reference 100 MHz 1.8 1.0 GHz 1.8 2.0 GHz 2.4 4.0 GHz 2.4 6.0 GHz 2.4 8.0 GHz 2.4 10.0 GHz 2.6 11.0 GHz 2.6 12.0 GHz 2.8 14.0 GHz 2.8 16.0 GHz 2.8 17.0 GHz 2.8 18.0 GHz 2.8 20.0 GHz 3.0 24.0 GHz 3.0 26.0 GHz 3.0 28.0 GHz 3.0 |
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