Calibration Factor

The VSWR test should be performed prior to running this test.

The purpose of this test is to characterize the Calibration Factor of the power sensor module at each frequency parameter. The generated calibration data will be saved to an XML format file in:

Windows 7 and Windows 10: C:ProgramData\Agilent Technologies\Test Management Environment\N5532X\CalFactorXMLData

This file can be copied to a disk to transfer the cal data to the N5530S, N5531S, or N5531X Measuring Receiver Systems.

The calibration factor uncertainty is stated as an absolute uncertainty. Stating calibration factor uncertainty as an absolute uncertainty allows for a consistent reporting format in TME.

Calibration factor uncertainty can be stated as a relative or an absolute number. Traditionally, calibration factor uncertainty has been stated as a relative number. Measurement uncertainty calculations require that this parameter be a relative term. It is critical that this distinction between absolute and relative uncertainties be understood when performing measurement uncertainty calculations. The power sensor module relative calibration factor uncertainty can be derived from the absolute calibration factor uncertainty by the following equation.

Relative calibration factor uncertainty = 100% × (Absolute calibration factor uncertainty) / (Calibration factor)

In general, the difference between the relative and absolute uncertainty is less than 10%. This small difference is because calibration factor values tend to be greater than 90% on a typical power sensor.

Required Test Equipment

Test Equipment

Recommended Model Number

Option 504

Option 518

Option 526

Option 550

Signal Generator

E8257D

X

X

X

X

Function Generator

33622A

X

 

 

 

Power Meter

N1914A1

X

X

X

X

Power Sensor, Type-N, 18 GHz2
(3 required)

N8481A

 

X

 

 

Power Sensor, Type-N, 6 GHz2
(3 required)

N8482A

X

 

 

 

Power Sensor, 3.5 mm, 26.5 GHz2
(3 required)

N8485A

 

 

X

 

Power Sensor, 2.4 mm, 50 GHz2
(3 required)

N8487A

 

 

 

X

Power Splitter, Type-N3

11667A Option H86

X

X

 

 

Power Splitter, 3.5 mm3

11667B Option H86

 

 

X

 

Power Splitter, 2.4 mm3

11667C Option H86

 

 

 

X

50Ω Termination, 3.5 mm

902D

X

X

X

 

50Ω Termination, 2.4 mm

901D

 

 

 

X

Type-N cable

11500C

X

 

 

 

Adapter, 2.4 mm (f) to Type-N (m)

11903D

X

X

 

 

Adapter, BNC (m) to Type-N (f)

1250-1477

X

 

 

 

Adapter, 2.4 mm (f) to 3.5 mm (m)

11901D

 

 

X

 

Adapter, 3.5 mm (f) to Type-N (m)4

08485-60005

 

 

X

 

Adapter, 2.4 mm (f) to Type-N (m)4

08487-60001

 

 

 

X
  1. The N1914A power meter requires minimum firmware version A.01.15 or above to fix a power linearity accuracy issue.

  2. For each power sensor model, three units are required to be used as the test equipment below:

    • Standard power sensor
    • Verification power sensor

    • Buried power sensor

  3. The calibration data of Port 2 of the power splitter is required. Port 2 of the power splitter will connect to the Standard Power Sensor / Verification Power Sensor / UUT Power Sensor and its calibration data is required to calculate the calibration factor and the uncertainty. The calibration data of Port 3 of the power splitter is not required. Port 3 of the power splitter will connect to the Buried Power Sensor and its calibration data is not required to calculate the calibration factor and the uncertainty.

  4. Adapter intended for use only at 1 mW, 50 MHz power reference of the power meter.

Connection Setups

The test setup diagrams are divided by option. Click on the link for that option's diagrams. To expand all, click the Expand All button in the toolbar (webhelp only).