When you select data from a recording, the recording resides in a file, by default, the Recording.sdf file is in your DATA directory. You can change the location of the file with the TempFile property. When you make a new recording from the hardware (Measurement.Record), the TempFile is over written. If you want to keep a recording, you need to save it to another file ( Recording.SaveFile). Note that when you play back a recording (even if it has been saved to a file and then recalled), you are playing the raw digital data and it plays back as if it were any other input. This means that you can further manipulate the data, making additional measurements. Conversely, when you save a trace to a file, you save the result of the particular measurement in effect at the time. This means that you cannot replay it as either input or recording, because you are no longer able to manipulate the data, only the presentation. Traces saved are re-displayed Via the data registers.

Note: When you save a Trace or a Recording, header information should always be included unless you intend to import the data into another application such as a database or some other signal analysis program and you want only the data in the file. Without the header data, the VsaVector and VsaScalar applications cannot reproduce the measurement conditions in effect when the trace or recording was created. Details can be found in the 89600 Application "Sharing Data" help.

Target Platforms: Windows 11 Professional or Enterprise; Windows 10 Professional, Enterprise, or Education (64-bit)

Reference