Performance Tests
2
Keysight N1913/1914A Service Guide
55
Test method
1
Obtain the S11 parameter of the calibration system.
2
Connect the measurement system to the calibration system and obtain its S21
(load) and S21 (open) parameters.
3
Using only the measurement system, terminated with the OPEN connector
from the 85032B calibration kit, measure the 1 mW power reference level of
the DUT.
4
Remove the OPEN connector from the measurement system, terminate it with
the 50 R load from the 85032B calibration kit, and repeat the 1 mW power
reference level measurement.
5
Using all of these values, the N7800A Series software will calculate the VSWR
of the power reference output.
NOTE
For rear panel options, the connections will differ from the illustration shown
here. Refer to the connector identification markings on the rear panel for further
details.
NOTE
– This test cannot be performed manually, due to the complexity of the
equipment calibration procedure, and the complexity of the measurement
algorithm.
– No adjustment is available for this test if it fails (see
Содержание N1913
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