Agilent Technologies 8753ET User Manual page 402

Operating Concepts
Modifying Calibration Kits
classes, not including two for isolation.
The number of standards that can be assigned to a given class may vary from none (class
not used) to one (simplest class) to seven. When a certain class of standards is required
during calibration, the analyzer will display the labels for all the standards in that class
(except when the class consists of a single standard). This does not, however, mean that all
standards in a class must be measured during calibration. Unless band-limited standards
are used, only a single standard per class is required.
NOTE It is often simpler to keep the number of standards per class to the bare
minimum needed (often one) to avoid confusion during calibration.
Each class can be given a user-definable label as described under label class menus.
Standards are assigned to a class simply by entering the standard's reference number
(established while defining a standard) under a particular class. The following is a
description of the softkeys located within the specify class menu:
• allows you to enter the standard numbers for the first class required for an S
S11A
1-port calibration. (For default calibration kits, this is the open.)
• allows you to enter the standard numbers for the second class required for an
S11B
S 1-port calibration. (For default calibration kits, this is the short.)
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• allows you to enter the standard numbers for the third class required for an S
S11C
1-port calibration. (For default calibration kits, this is the load.)
• allows you to enter the standard numbers for the first class required for an S
S22A
1-port calibration. (For default calibration kits, this is the open.)
• allows you to enter the standard numbers for the second class required for an
S22B
S 1-port calibration. (For default calibration kits, this is the short.)
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• allows you to enter the standard numbers for the third class required for an S
S22C
1-port calibration. (For default calibration kits, this is the load.)
• allows you to enter the standard numbers for the forward transmission
FWD TRANS
thru calibration. (For default calibration kits, this is the thru.)
• allows you to enter the standard numbers for the reverse transmission
REV TRANS
(thru) calibration. (For default calibration kits, this is the thru.)
• allows you to enter the standard numbers for the forward match (thru)
FWD MATCH
calibration. (For default calibration kits, this is the thru.)
• allows you to enter the standard numbers for the reverse match (thru)
REV MATCH
calibration. (For default calibration kits, this is the thru.)
• allows you to enter the standard numbers for a response calibration. This
RESPONSE
calibration corrects for frequency response in either reflection or transmission
measurements, depending on the parameter being measured when a calibration is
performed. (For default kits, the standard is either the open or short for reflection
measurements, or the thru for transmission measurements.)
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