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R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
2.2.1 Operating Menus and Entering Data
2-15
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Entering data
When a value is displayed in the active area, you can change it using the numeric keys, the step keys
or the data knob.
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Entering Data Using the Numeric Keys
You use the following keys to enter data: the number keys (0 through 9), the decimal point key,
the backspace (BS) or minus (-) key. If you make a mistake when using the numeric keys, you
can use the backspace (BS) key to delete the last digit entered. If you have not entered any data,
pressing the BS key enters a minus (-) sign. After entering the data, pressing the ENTR key or
one of the other unit keys completes the operation.
CAUTION:
Data entered with the numeric keys that is not terminated with a units terminator is
aborted when you press any panel key.
Example 1: The following example sets the reference level to -20 dBm using the numeric keys:
Press LEVEL, -, 2, 0 and GHz(+dBm) or LEVEL, 2, 0 and MHz(-dBm).
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Entering Data Using the Step Keys
The step keys are used to enter data in a predefined step size. Press the
step key to decrease
the value and the
step key to increase the value. You can enter data while looking at the active
area and the trace on the screen using the step keys. You can also define the step size manually.
Example 2: The following example sets the reference level to 0 dBm using the step keys:
Press the
step key following Example 1. This sets the reference level to -10.0
dBm. If you press the
step key once more, the level is set to 0.0 dBm.
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Entering Data Using the Data Knob
The data knob is used to set data in increments smaller than the step size. This is convenient
when making fine adjustments to data already entered.
Example 3: The following example sets the reference level to 0.5 dBm using the data knob.
Turning the data knob clockwise increases the reference level in increments of 0.1
dB. Continue to turn it until the active area shows a setting of 0.5 dBm.
Turning the data knob counter clockwise decreases the reference level by 0.1 dB.
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Soft menu configuration
Menus consist of the main menu, associated submenus and dialog boxes.
In addition, there are some soft keys with which you can switch the setting each time you press them.
In this section, the menus associated with the CONFIG key are shown as an example of a typical
menu configuration (See Figure 2-17).