Agilent Technologies N9913A User Manual page 75

TRL – Mechanical Cal ONLY.
A complete 2-Port calibration with potentially better accuracy than Full 2-port.
Corrects all S-parameters.
DUT: Non-Insertable or Insertable
Standards: Thru, Reflect, Line or variations of these. A TRL Cal Kit MUST be
selected to see this Cal Type.
Sweeps in BOTH directions.
Learn more about TRL Calibration in the Supplemental Online Help:
http://na.tm.agilent.com/fieldfox/help/FieldFox.htm.
1-port Response Cals (Open or Short)
Calibrate the magnitude and phase of a measurement using 'modeled'
mechanical standards. Measurement accuracy is better than Simple Response
Cals (available on the main Cal page) but NOT as good as full 1-port cal. Corrects
either S11 or S22. Can be used with Isolation (see following section). Learn more
about Simple Response Cals on page 72.
DUT: Non-Insertable or Insertable
Standards: OPEN or SHORT on ONE port.
Sweeps in BOTH directions.
Isolation Step
The optional isolation step of a calibration corrects for crosstalk which is the
internal signal leakage between the test ports. The additional Isolation step
measures Load standards that are connected to one or both FieldFox test ports.
Perform an isolation calibration when you are testing a device with high
insertion loss, such as the stop band of a filter or a switch in the open position.
The isolation step can add noise to the error model when the measurement is
very close to the noise floor of the analyzer. To improve measurement accuracy,
set a narrow IF Bandwidth during the calibration.
The Isolation step is NOT allowed with ECal or QuickCal.
How to perform the additional Isolation step
 Press Cal 5 then
 Then
 Then
 Then <Back
 Configure and perform the calibration as usual. At the first step of the Cal you
NOTE If the first calibration step does NOT prompt you to connect Load standards,
then the Cal Kit probably does not contain an Isolation standard. You can use
DataLink software to edit the Cal Kit and add an isolation standard using a Load
standard. See Data Link Help for more information:
http://na.tm.agilent.com/fieldfox/help/DataLinkHelp/DataLink.htm
Calibration for NA, CAT, and VVM Modes
Mechanical Cal / ECal
Advanced
Omit Isolation
Perform the Isolation step.
OFF
o
(default) Omits the Isolation step.
ON
o
will be prompted to connect a Load standard to one or both test ports.
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