Chapter 1 15
E4428C Analog Signal Generator Overview
Front Panel Display
3. Amplitude Area
The current output power level setting is shown in this portion of the display. When active, the following
functions also display indicators in the amplitude area:
• Amplitude offset (OFFS)
• Amplitude reference mode (REF)
• Alternate Amplitude (∆ = 0.00 dB)
• User flatness (UF)
4. Softkey Label Area
The labels in this area define the function of the softkeys located immediately to the right of the label. The
softkey label will change depending upon the function selected. For detailed softkey descriptions, refer to
the E4428C/38C ESG Signal Generators Key and Data Field Reference.
5. Error Message Area
Abbreviated error messages are reported in this space. When multiple error messages occur, only the most
recent message remains displayed. Reported error messages with details can be viewed by pressing
Utility > Error Info.
6. Text Area
This area of the display is used to show status information about the signal generator such as the modulation
status, sweep lists, and file catalogs. This area also enables you to perform functions such as managing
information, entering information, and displaying or deleting files.
7. Active Function Area
The current active function is shown in this area. For example, if frequency is the active function, the current
frequency setting will be displayed here. If the current active function has an increment value associated
with it, that value is also displayed.
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