Atec Agilent-E9300A - Manual (Page 18)

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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 data sheet
with the serial number on the power
sensor you are using. The CF cor-
rects 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 follow-
ing formula:
SWR = (1 + Rho)/(1 - Rho)
Maximum uncertainties of the CF
data are listed in tables 13A and
13B. As the E-series E9300 power
sensors have two independent
measurement paths (high and low
power paths), there are two calibra-
tion factor uncertainty tables. The
uncertainty analysis for the calibra-
tion 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.
General
Dimensions: Length 130 mm, width 38
mm, height 30 mm
Weight: 0.18 kg (0.4 lbs)
References:
[1] TIA is the Telecommunications
Industry Association; EIA is the
Electronic Industries Association.
TIA/EIA/IS-97-A is the recommend-
ed minimum performance standards
for base stations supporting dual-
mode wideband spread spectrum
cellular mobile stations. TIA/EIA/
IS-98-A is the recommended mini-
mum performance standards for
dual-mode wideband spread
spectrum cellular mobile stations.
Table 13A. Calibration factor uncertainties (low power path)
Frequency
Uncertainty (%) Uncertainty (%)
(25°C +10°C) (0° to 55°C)
10 MHz to 30 MHz ± 1.8% ±2.2%
30 MHz to 500 MHz ±1.6% ±2.0%
(E9304A: 9kHz to 500MHz)
500 MHz to 1.2 GHz
±1.8% ±2.5%
1.2 GHz to 6 GHz ±1.7% ±2.0%
6 GHz to 14 GHz ±1.8%
14 GHz to 18 GHz ± 2.0 % ±2.0% ±2.2%
Table 13B Calibration factor uncertainties (high power path)
Frequency
Uncertainty (%) Uncertainty (%)
(25°C +10°C) (0° to 55°C)
10 MHz to 30 MHz ±2.1% ±4.0%
30 MHz to 500 MHz ±1.8% ±3.0%
(E9304A: 9kHz to 500MHz)
500 MHz to 1.2 GHz
±2.3% ±4.0%
1.2 GHz to 6 GHz ±1.8% ±2.1%
6 GHz to 14 GHz ±1.9% ±2.3%
14 GHz to 18 GHz ±2.2% ±3.3%