Agilent Technologies ENA Series Guía de usuario descargar pdf (Pagina 599)

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101

Appendix A 593

Manual Changes

A. Manual Changes

NOTE When you define each calibration standard, the following points should be considered.

• Reference impedance Z0 must be set to the same value as the ENA’s system impedance

Z0 value.

• When you use Line 1, Line 2, and Line 3, their defined frequency ranges must overlap

by at least 10 kHz.

Saving and loading calibration kit definitions

Press the

Save button (11 in Figure A-4) to save the definition of the current calibration kit

to a file. Press the

Recall button (12 in Figure A-4) to recall the definition of a calibration

kit from a previously saved file.

NOTE If you save as “D:\Agilent\Data\TRL_LRM_cal\Default.dat,” the file is handled as the

default definition file. The default definition file is automatically recalled when the macro

starts.

NOTE The factory-shipped default definition file has the same content as

“D:\Agilent\Trldata\SysDefault.dat.” Copy “D:\Agilent\Trldata\SysDefault.dat” to the

default definition file in order to restore the default definition file to its factory-shipped

condition.

Do not change “D:\Agilent\Trldata\SysDefault.dat.”

Initializing calibration kit definition

Press the

default button (13 in Figure A-4) to recall the definition of a calibration kit from

the default definition file (“D:

\Agilent\Data\TRL_LRM_cal\Default.dat”).

Step 3. Press the

Close button (14 in Figure A-4) to finish defining the calibration kit.

3. Performing Calibration

Measure necessary calibration data and enable error correction.

NOTE The definition of the frequency range of the line standard and match standard used for

measurement must cover the sweep range of the channel for which you perform

calibration.

If the

Thru, Reflection, Match, and Line keys do not appear, go back to the calibration kit

definition menu and confirm that the frequency range definitions of match and lines are

correctly entered to cover the ENA’s measurement frequency range.

Step 1. Measure calibration data.

In this example, 2-port TRL/LRM calibration between test ports 1 and 2 (1 in Figure A-5)

is performed by using the Match, Line 1, and Line 2 standards.

1 2 ... 594 595 596 597 598 599 600 601 602 603 604 ... 774 775

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Agilent Technologies ENA Series Guía de usuario Pagina 599

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