Extension | Name | Definition |
.acd | Precision Automatic Calibrator (AutoCal) Module Characterization File AutoCal Characterization File | Each AutoCal module has an associated characterization file that contains parametric data about the module. When AutoCal starts up, it looks for any files in the current directory with the extension .acd. If more than one file is found, the user is prompted for which file to use. |
.ahc | All Hardware Calibration File | Saves all hardware calibration data on a per-system basis. |
.aic | AIC Analog-In Calibration File | Saves analog-in calibration data on a per-system basis. |
.alc | ALC Calibration File | Saves all available ALC calibration for all ports, per system. |
.bmp | Bit-mapped Graphics File | A Windows-compatible graphic file. In the MS4640A-Series VNA, the graphic capture of the main display results in a .bmp file that includes the running graphics display, |
.ccf | Calibration Kit Coefficients File | For VectorStar MS4640A Series VNA. A calibration kit coefficients file comes with each calibration kit, usually on a USB memory device. These files can be loaded onto the VNA hard disk and then recalled to active memory as required. See also .kit files. |
.cha | All Channels Setup and Calibrations File | For saving and recalling all channel setup parameters and calibration data. Upon recall, restores all configuration settings to all channels. Similar to the .sta file. The .sta file does not save calibration data. |
.chx | Active Channel Setup and Calibration File | For the active channel, saves the active channel setup and calibration parameters. Upon recall, restores the channel configuration settings and calibration data to the active channel. The .chx and .stx file formats are very convenient for copying the setup of one channel into another channel. Save the setup from the active channel, open an additional channel, and recall the saved .chx or .stx file into the new channel. Similar to the .stx file. The .stx file type does not save calibration data. |
.csv | Active Channel Information CSV File | An exportable trace data file in a spreadsheet compatible comma-separated-value (CSV) format. Includes an optional descriptive heading in which the data for every trace is saved to a defined location folder. The data for each trace is saved as an X and a Y column to accommodate multiple parameters such as mixed frequency and time domain. Subsequent traces are added as additional columns. Instrument data can be saved to the .csv but the .csv file cannot be recalled into the VNA memory. Similar to the .txt file format. |
.edl | Embedding/De-embedding Configuration File | Default file name is EmbedDeembed.edl. |
.fpc | Frequency Sweep Power Calibration File | On a per-channel, per-port basis, saves the active channel and port data. Upon recall, restores the saved port data to the active channel. File extension for frequency sweep calibrations using Frequency Sweep (Linear), Frequency Sweep (Log), Segmented Sweep (Frequency-based), and Segmented Sweep (Index-based). Compare with .ppc file types below for power sweeps. |
.ini | AutoCal Default Setup File | The default setup file for AutoCal. The default file name is auto_cal.ini. If another file is required, another AutoCal setup file should be loaded by selecting File | Open Setup File. |
.ini | Source Initialization Table | For troubleshooting only. Saves the source initialization table data. Upon recall, restores the source initialization table data. |
.ini | Frequency Initialization Table file | Default name is FreqIniTable.ini |
.jpg .jpeg | Joint Photographic Experts Group Image File | User-initiated capture of the data display area of the VNA. |
.kit | Calibration Kit Coefficients File | From Anritsu Lightning 37000D Series VNA. VectorStar VNAs will read .kit files but not save them. The VectorStar VNA will convert a .kit file to a .ccf file format. |
.lmt | Limit Line Configuration File | For the active trace on the active channel, saves all limit line data including number of segments, frequency range or CW, test result signs, limit fail signals, and limt external output. Upon recall, restores the limit line configuration to the active trace on the active channel |
.log | Microsoft Windows Event Viewer Log File | These are operating system files logging events for the Application, Security, System, and Vector. The files are viewable by navigating to: MAIN | System | SYSTEM | Event Log | EVENT VIEWER Dialog Box |
.mft | Multiple Frequency Table configuration file. | Provides the entire frequency table and is used for troubleshooting. Default file name is FreqTable.mft. |
.ppc | Power Sweep Power Calibration File | On a per-channel basis, saved the active channel and port. Upon recall, restores the saved port data to the active channel. File extension for power sweep calibration files using Power Sweep (CW Frequency) or Power Sweep (Swept Frequency). Compare with .fpc file types above for frequency-based sweeps. |
.ptc | Pretune Calibration File | Per system |
.rcvr | Receiver Calibration File | On a per-channel basis, saves all available user receiver calibration data. Upon recall, restored the user receiver calibration data to the active channel. |
.s1p .s2p | Active Channel S1P file Active Channel S2P file | Generically, an .sNp file is in standard microwave simulator text format and is similar to the .txt file described below. Includes a controlled header and only one or four S-parameters are saved. An .s1p file type holds the characteristics of a reflective calibration components. These files are loaded as needed during calibration if the calibration components is characterized by this file type. An .s2p file type holds the characteristics of a 2-port microwave device. If a full two-port calibration is applied, all of the S-parameters are always measured, even if they do not need to be displayed. The resultant .s2p file is complete with all S-parameter information. Upon recall, the .sNp file can be recalled and displayed as trace memory when they are loaded into the active channel. |
.sft | Single Frequency Table File | For troubleshooting, saves the frequency table for a single frequency. Upon recall, restores the saved single frequency table. |
.sgs | Segmented Sweep File | On a per-channel basis, saves the segmented sweep definition configuretion data. UseSegmented sweep definition file. Used for frequency-based sweep and index-based sweep. |
.slc | Source Low Level Calibration (Src LO) calibration file | On a per-system basis, saves the hardware calibration file for each VNA internal source. There is a separate .slc file for each internal source. Upon recall, restores the internal source settings. |
.sqm | Source Quadrupler hardware calibration file | |
.sta | All Channels Setup File | Same as .cha file but without calibration information. The file can be saved and recalled. |
.stx | Active Channel Setup File | For saving and recalling active channel setup parameters. Includes all setup details for the active channel without any calibration data. Upon recall, restores the channel configuration settings to the active channel. The .chx and .stx file formats are very convenient for copying the setup of one channel into another channel. Save the setup from the active channel, open an additional channel, and recall the saved .chx or .stx file into the new channel. Similar to the .chx file. The .chx file includes channel calibration data. |
.tdf | Active Trace Data Memory Formatted File - After Post Processing | The .tdf file stores trace data or trace memory data after all post processing using an XML format. This is useful for comparing a DUT against a “golden device” or seeing if the performance of a DUT has changed over time. The file can be saved and recalled. The file will recalled into the same part of the chain that it was saved from and after any post-processing steps. |
.tdu | Active Trace Data Memory Unformatted File - Before Post Processing | The.tdf file stores trace data or trace memory data using an XML format. The file saves the active trace’s memory before most post processing such as time domain, smoothing, and group delay calculations. The file can save data from the current trace or from the trace memory. A previously saved file can be recalled and loaded, and then either displayed on the current trace or displayed on the trace memory. This file can be recalled into either the active trace (normally in hold or sweeping very slowly) or into the active trace’s memory. The file will recalled into the same part of the chain that it was saved from and before any post-processing steps. |
.tmz | Ten (10) MHz Calibration File | Per system |
.txt | Active channel trace data text file | An exportable trace data file in a spreadsheet or word processor compatible format that uses tabs to delimit the output fields. Includes an optional descriptive heading in which the data for every trace is saved to a defined location folder. The data for each trace is saved as an X and Y column to accomodate multiple parameters such as mixed frequency and time domain. Subsequent traces are added as additional columns. Instrument data can be saved to the .txt file but the .txt file cannot be recalled into the VNA memory. Similar to the .csv file format. |
.xml | VNA configuration file in XML | XML or eXtensible Markup Language file Used for the VNA configuration state when the instrument is shut down and subsequently powered back up. |
KIT_INFO.xyz | Calibration kit file for an Anritsu Lightning 37xxxD/37xxxE Series VNA. | The .xyz file extension varies with the connector geometry and gender. The MS4640A Series VNA can read Lightning calibration kit files and convert them to a .ccf format. |