Service 4
Keysight E-Series E9300 Operating and Service Guide 49
Zero set performance verification
This performance verification is carried out to verify that a minimal amount of
residual offset error is present after zeroing has been performed. The offset error is
caused by contamination from several sources including the noise of the DUT
itself. Zero set is the difference between the power levels indicated by the DUT,
after executing zeroing and the true zero power. Ideally, this difference should be
zero.
This performance verification requires a power meter (E4416/7A).
Procedure
1 Connect the DUT (E-Series E9300 power sensor) to the power meter as shown
in Figure 4-1.
Figure 4-1 Zero set performance verification equipment setup
2 Warm up the DUT for approximately 30 minutes.
3 Connect the DUT to the power meter power reference terminal to perform zero
and calibration.
Table 4-7 Power sensor SWR and reflection coefficient for the E9301H
Frequency
System Rho
uncertainty
Actual measurement Maximum Rho
10 MHz to 6 GHz ±0.010 0.070
For E9300B series, the high power attenuator must be removed.
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