18 | 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)

Effects of change in temperature

on linearity

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 9.

For small changes in temperature: The

typical maximum additional power linearity

error due to small temperature change

after calibration is ± 0.15%/°C (valid after

zeroing the sensor).

For large changes in temperature:

refer to Table 10.

Table 10. Typical maximum additional power linearity error due to temperature change (valid after zeroing the sensor)

Sensor

Power

Additional power linearity error

(25 °C ± 10 °C)

Additional power linearity error

(0 °C to 55 °C)

E9300A, E9301A, E9304A

–60 to –10 dBm

–10 to 0 dBm

0 to +20 dBm

± 1.5%

± 1.5%

± 1.5%

± 2.0%

± 2.5%

± 2.0%

E9300B, E9301B

–30 to +20 dBm

+20 to +30 dBm

+30 to +44 dBm

± 1.5%

± 1.5%

± 1.5%

± 2.0%

± 2.5%

± 2.0%

E9300H, E9301H

–50 to 0 dBm

0 to +10 dBm

+10 to +30 dBm

± 1.5%

± 1.5%

± 1.5%

± 2.0%

± 2.5%

± 2.0%

A+20 dBm

–10 dBm

60 dBm

B+44 dBm

H+30 dBm

+20 dBm, 0 dBm

–30 dBm, –50 dBm

± 2%

± 1%

± 1%

± 2%

A–60 dBm

B–30 dBm

H–50 dBm

–10 dBm

+20 dBm

0 dBm

+20 dBm

+44 dBm

+30 dBm

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.