Atec Agilent-E4418B-E4419B - Manual (Page 15)

E-Series average power sensor specifications
(continued)
15
Effects of change in temperature on linearity
If temperature changes and you choose
not to re-calibrate the sensor, add the
following power linearity error to the
linearity specs in Table 9:
For small changes in temperature
Typical maximum additional power
linearity error = ±0.15%/°C
(valid after zeroing the sensor)
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.
For large changes in temperature
Table 10
Figure 2. Relative mode power measurement linearity with an EPM Series power meter, at 25 °C
±10 °C (typical)
A+20 dBm B+44 dBm,
H+30 dBm
+20 dBm, 0 dBm
-30 dBm, -50 dBm 60 dBm
A-60 dBm
+20 dBm
–10 dBm
±2%
±2% ±1%
±1%
+20 dBm
+44 dBm
+30 dBm 0 dBm
B-30 dBm
H-50 dBm
-10 dBm
Measured
Power
Sensor
E9300A, E9301A, E9304A
E9300B, E9301B
E9300H, E9301H
Power
–60 to –10 dBm
–10 to 0 dBm
0 to +20 dBm
–30 to +20 dBm
+20 to +30 dBm
+30 to +44 dBm
–50 to 0 dBm
0 to +10 dBm
+10 to 30 dBm
Additional power
linearity error
(25 °C ± 10 °C)
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
±1.5%
Additional power
linearity error
(0 to 55 °C)
±2.0%
±2.5%
±2.0%
±2.0%
±2.5%
±2.0%
±2.0%
±2.5%
±2.0%