Calibration Kits; Example 2A: Response Calibration - Agilent Technologies 8719ET Programmer's Manual

Programming Examples
Measurement Calibration Examples
For type-N connectors, the sex of the connector that the calibration standard
NOTE
will mate to must be observed. These programs assume that the connector on
PORT 1 (REFLECTION port on ET models) is a female test port and that
PORT 2 (TRANSMISSION port on ET models) is a male test port.

Calibration Kits

The calibration kit tells the analyzer what standards to expect at each step of the
calibration. The set of standards associated with a given calibration is termed a "class." For
example, measuring the short during a 1-port measurement calibration is one calibration
step. All of the shorts that can be used for this calibration step make up the class, which is
called class S11B. For the 7-mm and the 3.5-mm cal kits, class S11B uses only one
standard. For type-N cal kits, class S11B contains two standards: male and female shorts.
When doing a 1-port measurement calibration using a 7- or 3.5-mm calibration kit,
selecting automatically measures the short because the class contains only one
SHORT
standard. When doing the same calibration in type-N, selecting
second menu, allowing the operator to select which standard in the class is to be measured.
The sex listed refers to the test port: if the test port is female, then the operator selects the
female short option. Once the standard has been selected and measured, the
must be pressed to exit the class.
Doing a 1-port measurement calibration over GPIB is very similar. When using a 7- or
3.5-mm calibration kit, sending CLASS11B will automatically measure the short. In type-N,
sending CLASS11B brings up the menu with the male and female short options. To select a
standard, use STANA or STANB. The STAN command is appended with the letters A through
G, corresponding to the standards listed under softkeys 1 through 7, softkey 1 being the
topmost softkey.
The STAN command is OPC-compatible. A command that calls a class is only
OPC-compatible if that class has only one standard in it. If there is more than one
standard in a class, the command that calls the class brings up another menu, and there is
no need to query it. DONE; must be sent to exit the class.

Example 2A: Response Calibration

The following is an outline of the program's processing sequence:
• An I/O path is assigned for the analyzer.
• The system is initialized.
• The appropriate calibration kit is selected.
• The softkey menu is deactivated.
• The response calibration sequence is run.
• The response calibration data is saved.
• The softkey menu is activated.
• The analyzer is released from remote control and the program ends.
7-24
brings up a
SHORT
DONE
Chapter 7
key