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About ECal User Characterization

Description

Note: This property replaces Initialize (ECal) Method.

Initiates a User Characterization of an ECal module.  The specified channel number must be an S-parameter measurement channel.  The channel must already be calibrated using the same, or greater number of VNA ports as the ECal module. Also, the calibrated VNA ports must begin with Port 1 and use sequential port numbers.

For characterizations that are to be saved to the ECal module, the User Characterization number must already be set before issuing this command using CharacterizationNumber Property. For characterizations that are to be saved to the VNA disk memory, setting the User Characterization number is not necessary.

After this command is executed, subsequent commands can be used to query the number of measurement steps, issue the acquisition commands, query the connection description strings, and subsequently complete an Ecal User characterization.

 VB Syntax

userChar.InitializeEx (chan,bool)

Variable

(Type) - Description

userChar

ECalUserCharacterizer (object)

chan

(Long) Channel number of a calibrated S-parameter channel.

bool

(Boolean) Choose from:

True  Check ECal memory to ensure that a new characterization with the channel’s current number of points will fit in the module memory. Select for User Characterizations to be stored in internal ECal memory.

False  Skip the check. Select for User Characterizations is to be stored to VNA disk memory.

Return Type

Not Applicable

Default

Not Applicable

Examples

userchar.InitializeEx(2,True)

C++ Syntax

HRESULT put_InitializeEx(long chanNum,VARIANT_BOOL bCheck);

Interface

IECalUserCharacterizer2