Agilent Technologies 8719D User Manual page 362

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The number of standard classes required depends on the type of calibration being performed,
and is identical to the number of error terms corrected. A response calibration requires only
one class, and the standards for that class may include an open, or short, or thru. A l-port
calibration requires three classes. A full 2-port calibration requires 10 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.
It is often simpler to keep the number of standards per class to the bare
Note
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:
n
calibration. (For default calibration kits, this is the open.)
. :%#E allows you to enter the standard numbers for the second class required for an S11
l-port calibration. (For default calibration kits, this is the short.)
n
calibration. (For default calibration kits, this is the load.)
Application and Operation Concepts
Standard Itef
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