Saving Measurement Results

Instrument states combined with measurements results can only be saved to disk. Files that :,.:...:.......:....:........q.i .:.,:..:::,.::.;:.::::::,.:::.::::: :..-: :: .:;*:,. ..;.,.

contain data-only, and the various save options available under the l%IQ#I# ~~~~~#WlJ key, are also only valid for disk saves.

The analyzer stores data in arrays along the processing flow of numerical data, from IF detection to display. These arrays are points in the flow path where data is accessible, usually via HP-IB. You can choose from three different arrays which vary in modification flexibility when they are recalled.

nraw data

ndata (raw data with error-correction applied)

nformat (data processed to the display format)

If you choose to save the raw data array, you will have the most flexibility in modifying the recalled measurement (including the ability to view all four S-parameters). This is because the raw data array has the least amount of processing associated with it. Conversely, if you choose to save the format array, your modification of the recalled measurement will be limited by all the processes that are associated with that measurement result. However, the format array is appropriate if you want to retrieve data traces that look like the currently displayed data.

Deline Save ModificationFlexibility

II Dnring-

Raw Data Array

Most

Data Array

Medium

Format Array

Least

You can also save data-only. This is saved to disk with default filenames DA!DWODl to DATASlDl for channel 1, DATAOOD2 to DATA31D2 for channel 2, DATAOOD3 to DATA31D3 for channel 3, and DATAOOD4 to DATA31D4 for channel 4. However, these llles are not instrument states and cannot be recalled.

4 3 6 Printing, Platting, and Saving Measurement Results

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HP 8753E manual Saving Measurement Results, Deline Save ModificationFlexibility II Dnring