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9640A
Instruction Manual
Status Bar
The status bar consists of two regions across the top of the display (see Figure 3-2). There
are no keys associated with the status bar as its only function is to provide information.
Typically, the left-most label defines the RF Output signal: sine, modulated, or swept. It
also indicates a GPIB command emulation mode. The right-most region contains status
indications (virtual LEDs) pertinent to the current output signal. Operator error messages,
such as value too low, are also displayed in this region.
Note
On a printed black and white page
the red and green LEDs have a similar
appearance. However, the red is close
to black and the green is noticeably gray.
Soft Keys
The Instrument has two sets of soft keys. One vertical set running down the right side of
the display and one horizontal set running across the bottom of the display. Each of these
soft keys has an adjacent soft label on the screen.
The primary function of the vertical soft keys is for selection of the focus field, and in
some cases the edit mode (Cursor edit or Step edit) for the focus field. These keys are
also used to temporarily present scientific multipliers during alphanumeric entry using
the keypad and unit selections, if is pressed.
The horizontal soft keys are associated with the soft labels across the bottom of the
display. These labels provide prompts to expand the current definition, add/remove fields,
or call another screen (menu selection).
3-8
Explanation of LED colors
White: Inactive
Red (Flashing): Not OK e.g. Out of Lock
Figure 3-2. Status Bar
Soft Keys
Green: Active or OK
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