User`s guide

76 Chapter 4
Performing a Calibration
Sample Program
The Ecal subprogram in lines 570 to 870, which performs ECal, is described below.
Line 610 Displays the calibration type.
Line 630 Clears the error queue.
Lines 660 to 680 If Num_of_ports = 1, the subprogram prompts the user to connect the
E5061A/E5062A's port Port(1) with the ECal module, and waits for a
press of the [Enter] key after the connection.
Line 690 If Num_of_ports = 1, the subprogram executes the ECal command that
performs full 1-port calibration on port Port(1).
Lines 710 to 740 If Num_of_ports = 2, the subprogram prompts the user to connect the
E5061A/E5062A's ports Port(1) and Port(2) with the ECal module,
and waits for a press of the [Enter] key after the connection.
Line 750 If Num_of_ports = 2, the subprogram executes the ECal command that
performs full 2-port calibration on ports Port(1) and Port(2).
Lines 780 to 790 These lines retrieve the error number and error message from the error
queue, and then store them into the variables Err_no and Err_msg$,
respectively.
NOTE The ECal command can be combined with the *OPC? command to make the program wait
until the measurement completes successfully. The sample program executes the
:SYST:ERR? for the purposes of waiting for the completion of ECal and checking for any
errors.
Lines 810 to 830 If Err_no returns a non-zero value (an error value), the program
displays the corresponding error message.
Line 850 If Err_no returns 0 (no error), the program displays a closing message.