User`s guide

Chapter 3 3-3

GPIB Commands and Their Measurements

Example: Uncouple Channel 1 and Channel 2

In this example, the analyzer’s Chan1 and Chan2 are uncoupled. The

Chan1 and Chan2 test set I/O FWD and I/O REV are set independently.

The analyzer display is set so both Chan1 and Chan2 are displayed.

In the following commands, “Nwa” is the address of the analyzer:

For more information on externally calibrating and controlling the

analyzer, refer to the standard documentation.

OUTPUT Nwa; “PRES” !

OUTPUT Nwa; “COUPOFF” !uncouples channels

OUTPUT Nwa; “H39MODEOFF” !turn 3PORT mode off for H39

OUTPUT Nwa; “CHAN1”; “S21” !set channel 1 to measure S

OUTPUT Nwa; “TSTIOFWD7” !ports 1 and 3 selected for channel 1

OUTPUT Nwa; “TSTIOREV7” !ports 1 and 3 selected for channel 1

OUTPUT Nwa; “CHAN2”; “S21” !set channel 2 to measure S

OUTPUT Nwa; “TSTIOFWD6” !ports 2 and 3 selected for channel 2

OUTPUT Nwa; “TSTIOREV6” !ports 2 and 3 selected for channel 2

OUTPUT Nwa; “DUACON” !dual channel display on