N1914A Datasheet, PDF (20/28 Pages) Keysight Technologies – EPM Series Power Meters E-Series and 8480 Series Power Sensors

20 | Keysight | N1913A and N1914A EPM Series Power Meters / E-Series and 8480 Series Power Sensors - Data Sheet
E-Series E9300 Average Power Sensor Specifications (continued)
Calibration factor (CF) and
reflection coefficient (Rho)
Calibration factor and reflection
coefficient data are provided at frequency
intervals 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 certificate
of calibration (CoC) with the serial number
on the power sensor you are using. The
CF corrects for the frequency response of
the sensor. The EPM Series power meter
automatically reads the CF data stored
in the sensor and uses it to make the
corrections.
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 Tables 12a and 12b. As the
E-Series E9300 power sensors have two
independent measurement paths (high and
low power paths), there are two calibration
factor uncertainty tables. The uncertainty
analysis for the calibration of the sensors
was done in accordance with the ISO
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 12a. Calibration factor uncertainties (low power path)
Frequency
Uncertainty (%)
(25 °C ± 10 °C)
10 MHz to 30 MHz
± 1.8%
30 MHz to 500 MHz
(E9304A: 9 kHz to 500 MHz)
± 1.6%
500 MHz to 1.2 GHz
± 1.8%
1.2 GHz to 6 GHz
± 1.7%
6 GHz to 14 GHz
± 1.8%
14 GHz to 18 GHz
± 2.0 %
Table 12b. Calibration factor uncertainties (high power path)
Frequency
Uncertainty (%)
(25 °C ± 10 °C)
10 MHz to 30 MHz
± 2.1%
30 MHz to 500 MHz
(E9304A: 9 kHz to 500 MHz)
± 1.8%
500 MHz to 1.2 GHz
± 2.3%
1.2 GHz to 6 GHz
± 1.8%
6 GHz to 14 GHz
± 1.9%
14 GHz to 18 GHz
± 2.2 %
Uncertainty (%)
(0 °C to 55 °C)
± 2.2%
± 2.0%
± 2.5%
± 2.0%
± 2.0%
± 2.2%
Uncertainty (%)
(0 °C to 55 °C)
± 4.0%
± 3.0%
± 4.0%
± 2.1%
± 2.3%
± 3.3%