2-7 Soft Key Types Quick Start Guide
2-14 PN: 10580-00305 Rev. L MS20xxC UG
Input
An Input soft key is used to select an item or a value. This type of soft key displays the setting
parameter and the setting value on the virtual key face. When the key is pressed, a select box
or edit box may open on the display screen, or the key face may turn a darker gray color to
show that the setting is being made. At any time before finalizing the input, press the escape
(Esc) key to abort the change and retain the previously existing setting.
To set or select an item or a value, use the number keys, the arrow keys, or the rotary knob.
Press the rotary knob or the Enter key to finalize data input. If a value is being selected or
entered, then the soft key Active Function Block may change to provide one or more soft keys
for units, such a Hz or dB. Pressing a unit soft key sometimes finalizes the data input in the
same manner as pressing the Enter key. If more than one unit key is displayed, then pressing
the Enter key without first pressing a unit key selects a specific unit by default. The specific
default units are described along with soft key descriptions that are included in the analyzer
chapters and the Measurement Guides.
With some functions, only a specific set of values are valid. When scrolling with the Up/Down
arrow keys or the rotary knob, only valid values are offered. If different values are set with
the number keypad, then those values might not be accepted. Even if different values are
accepted on the soft key face, the values may not be valid for the selected measurement. Your
knowledge of measurement functions must be used to determine acceptable values.
Toggle
A Toggle soft key displays the setup item and the toggle states. Toggle states may be On and
Off or may be a selection of types or values such as Reference Impedance: 50 ohm or 75 ohm.
Each press of the Toggle soft key moves the selection to the next value or item in sequence.
The selected item or value is underlined on the virtual key face.
Switching
A Switching soft key is used to open an additional soft key menu, and it has an arrow
mark (-->) in the lower right corner of the virtual key face.
Some Select soft keys become Switching soft keys after being pressed (after becoming active).
These keys may not display the arrow mark until they are active (their circle is red). An
additional press, after the circle is red and the arrow mark is displayed, opens the additional
soft key menu. Refer to section “Select” on page 2-13.
The Switching soft key that is labeled More opens a menu with additional soft key functions.
The Switching soft key that is labeled Back returns to a previous soft key menu. The Back key
has the arrow mark (<--) in the lower left corner of the virtual key face.
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