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Data Logging

Data logging allows you to produce output text files containing selected spectral parameters along with a timestamp showing when the event occurred.  A separate file is written for each enabled channel.


Enable Logging: controls the overall logging status.

Filename Format: selects the filename format to use for each channel.  You can also directly specify the filename to be used.

Overwrite Existing file: if a file with the same name already exists it will be overwritten/

Append to Existing file: if a file with the same name already exists, new data will be apended.

Include Time Stamp in first column: if selected, a time stamp will be written for each line in the log file

Include Header on first row: if selected, a descriptive header row will be written on the first line of the file.

Viewer Program: Select the name of the text editor you wish to use for viewing the data logging output files.  The output data is always written in ASCII text.  Notepad is the default.

Logging options for each channel

Output Data Type: Check the data items you want to write to the log file.

Logging Interval:  Determines how often the spectral data is logged to the output file.

View Output File:  Opens the current data log file using the specified viewer program.

View Data Logging Folder:  Opens the data log folder using Explorer so you can manage your data log files.  The default folder is set in the <File><Set Paths> menu.

Notes: Use caution when logging the entire spectrum values for large frequency ranges.  The resulting data file will be very large.  Use the Marked Spectrum option to limit the frequency range.

Output example:

Data Logging On: Fri Sep 30 10:43:41 1995
Time     Freq(Hz)        Amplitude(dB)
10:43:41      527.56   -45.60
10:43:42      495.26   -54.03
10:43:43      495.26   -49.83
10:43:44      1399.66 -59.01
10:43:48      1399.66 -59.14
10:43:49      516.80   -56.38
10:43:50      549.10   -53.37
10:43:51      624.46   -43.66
10:43:52      559.86   -37.96