Menus
File SubMenu
This submenu provides access to the file operation and printing functions.
New (File SubMenu) (ALT-F-N, CTRL-N)
The command is used to create a new, blank document for measurement. The new document will be used to hold the latest collected frame of data.
This command is also available through the button  in the Instrument Toolbar. When no Oscilloscope and Spectrum Analyzer is opened, click the above "Spectrum Analyzer" button will open a new document.
Open (File SubMenu) (ALT-F-O, CTRL-O)
Same as Oscilloscope.
Open Frame by Frame (File SubMenu) (ALT-F-F)
Same as Oscilloscope.
Import (File SubMenu) (ALT-F-I)
Same as Oscilloscope.
Combine (File SubMenu) (ALT-F-B)
Same as Oscilloscope.
Extract (File SubMenu) (ALT-F-T)
Same as Oscilloscope.
Close (File SubMenu) (ALT-F-C)
Same as Oscilloscope.
Save (File SubMenu) (ALT-F-S, CTRL-S)
Same as Oscilloscope.
Save As (File SubMenu) (ALT-F-A)
Same as Oscilloscope.
Spectrum Analyzer Export (File SubMenu) (ALT-F-E)
This command is used to export either the calculated data (RMS Amplitude Spectrum, Octave Spectrum, Phase Spectrum, Auto Correlation Function or Cross Correlation Function, Coherence Function, Gain and Phase, Impulse Response, depending on the current view type) as a TXT file or the currently displayed graph as a BMP file. When clicked, a "Save As" window will pop up. You can specify whether you want to export as TXT file or BMP file by selecting "Text File (*.txt)" or "Bitmap File (*.bmp)" in the "Save as type" combo box. The text file can be imported into third party software such as Microsoft Excel for further processing and analysis.
This command is disabled when the document is empty.
Spectrum Analyzer Print (File SubMenu) (ALT-F-P, CTRL-P)
Similar to Oscilloscope.
Spectrum Analyzer Print Preview (File SubMenu) (ALT-F-V)
Similar to Oscilloscope.
Recent File (File SubMenu)
Same as Oscilloscope.
Setting SubMenu
This submenu provides access to various setting functions.
Calibration (Setting SubMenu) (ALT-S-C)
Same as Oscilloscope.
Display (Setting SubMenu) (ALT-S-D)
Same as Oscilloscope.
Note (Setting SubMenu) (ALT-S-N)
Same as Oscilloscope.
Spectrum Analyzer Processing (Setting SubMenu) (ALT-S-G)
There are three types of processing: Intra-Frame Processing, Inter-Frame Processing, and on the top of them, Parameter Measurement.
Intra-Frame Processing
The Intra-Frame Processing, as its name suggests, is performed within a data frame in frequency domain. There are three types of Intra-Frame Processing: Frequency Compensation, Frequency Weighting, DC removal.
Frequency Compensation
If you check the “Compensation” check box, you are allowed to load a Frequency Compensation File (*.fcf) to compensate the amplitude spectrum. A Frequency Compensation File is a Comma Separated Variable (CSV) TXT file that defines the magnitude compensation value (in dB) at each frequency. It has the following format (which follows the same format as the Frequency Response File (*.frf) defined previously) :
Example:
1,20,-50.5
2,25,-44.7
3,31.5,-39.4
4,40,-34.6
......
Each line contains three comma separated variables. The first variable is the sequential number. The second one is the frequency value in Hz. And the third one is the corresponding gain value in dB. Note that 0 dB represents the unit gain. Any frequencies that fall outside the defined range will be give a gain value of –1000 dB.
Some sample files are provided in the FCF directory of the software and can be used as templates.
Frequency compensation is only applicable to the Amplitude Spectrum display.
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