Atec Agilent-E9300A - Manual (Page 16)

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Note: If the temperature changes after calibration and you choose not to re-calibrate the sensor, the following additional power linearity error should be
added to the linearity specs in table 10: the typical maximum additional power linearity error due to temperature change after calibration, for small
changes in temperature, is ±0.15%/°C (valid after zeroing the sensor).
For large changes in temperature, refer to Table 11.
Typical maximum additional power linearity error due to temperature change after calibration
at 25ºC for any change in temperature (valid after zeroing the sensor)
Table 11
Sensor
Power Additional power Additional power
linearity error linearity error
(25°C ± 10°C) (0 – 55°C)
E9300A, E9301A, E9304A -60 to –10 dBm ±1.5% ±2.0%
-10 to 0 dBm ±1.5% ±2.5%
0 to +20 dBm ±1.5% ±2.0%
E9300B, E9301B -30 to +20 dBm ±1.5% ±2.0%
+20 to +30 dBm ±1.5% ±2.5%
+30 to +44 dBm ±1.5% ±2.0%
E9300H, E9301H -50 to 0 dBm ±1.5% ±2.0%
0 to +10 dBm ±1.5% ±2.5%
+10 to 30 dBm ±1.5% ±2.0%
Figure 2. Relative mode power measurement linearity with an EPM series power meter, at 25°C ±10°C (typical)
Figure 2 shows the typical uncertainty in making a relative power measurement, using the same power meter channel and same power sensor to obtain
the reference and the measured values, and assumes that negligible change in frequency and mismatch error occur when transitioning from the power
level used as the reference to the power level being measured.