# :FUNCtion:PARameters:DEPort:FNAMe

DeEmbed (4 port, 1 source) Parameters Commands

- :FUNCtion:PARameters:DEPort:ALIGn
- :FUNCtion:PARameters:DEPort:BANDwidth
- :FUNCtion:PARameters:DEPort:BLIMit
- :FUNCtion:PARameters:DEPort:BSPan?
- :FUNCtion:PARameters:DEPort:CFRequency
- :FUNCtion:PARameters:DEPort:DRESult
- :FUNCtion:PARameters:DEPort:FNAMe
- :FUNCtion:PARameters:DEPort:IMPulse
- :FUNCtion:PARameters:DEPort:MEASsim
- :FUNCtion:PARameters:DEPort:RCORr
- :FUNCtion:PARameters:DEPort:RESolution
- :FUNCtion:PARameters:DEPort:SPAN
- :FUNCtion:PARameters:DEPort:STEP

## Command Syntax

    :FUNCtionN:PARameters:DEPort:FNAMe "<path substitution string>\subfolder\filename"

Where:

- N identifies one of up to 64 possible operators {1:64} that can be defined as part of a math function. The operators are numbered in the order that they were originally added to the function.
- "<path substitution string> is a string that expands into a specific file path. For example, %USER_DATA_DIR%.
- "subfolder" is an optional path folder. For example, %USER_DATA_DIR%\De-Embedding Networks.
- "filename" is a string without the filename extension.

## Query Syntax

    :FUNCtionN:PARameters:DEPort:FNAMe?

## Description

Specifies an existing network file for a 4-Port, 1-Source DeEmbedding operator (`:FUNCtion:FOPerator`). The file models 4-Port DeEmbedding for a full system of transmitter, receiver, and channel blocks that removes or inserts test-setup elements. These transfer function files use the filename extension of .tf4. You must create and save network files for your test setup using Infiniium's menus. Use the `:FUNCtion:PARameters:DEPort:BANDwidth` command set the bandwidth os 4-port de-embedding. Use the `:FUNCtion:PARameters:DEPort:BLIMit` command to select the type of bandwidth filter used. This command supports the `DEFault` common child command.

You must create and save network files for your test setup using Infiniium's menus. You cannot create and define networks using remote programming commands.

### Default User Folder

The default folder for storing S-Parameter files is in `%USER_DATA_DIR%\S-Parameter Data` as shown in this picture. It is good practice to include a path substitution string with the filename. For example, `%USER_DATA_DIR%\S-Parameter Data\filename`.

File names must include a path when using the child `:FNAMe` command. The `:FNAMe` command is not affected by a Default Setup or Factory Default.

Specifying a path using a path substitution string in the filename ensures that the file will be saved in (or loaded from) the standard user-data folder. Failure to use a path substitution string may result either in a file created in an parent folder or a file error.

## Example Command Sequence

    :FUNCtion2:FOPerator DEPort
    :FUNCtion2:PARameters:DEPort:FNAMe "%USER_DATA_DIR%\De-Embedding Networks\DUT_4.tf4"
    :FUNCtion2:PARameters:DEPort:DRESult DSRC
    :FUNCtion2:COLor TCOLor4
    :FUNCtion2:DISPlay ON
    *OPC?
    …  //  Your code to synchronize execution timing.