Quick Start
R&S
®
ESR
75
User Manual 1175.7068.02 ─ 12
LEFTARROW/RIGHTARROW keys
The [LEFTARROW] or [RIGHTARROW] keys do the following:
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In an alphanumeric edit dialog box, move the cursor.
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In a list, scroll forward and backward through the list entries.
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In a table, move the selection bar horizontally.
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In windows or dialog boxes with horizontal scroll bar, move the scroll bar.
UNDO/REDO keys
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The [UNDO] key reverts the previously performed action, i.e. the status before the
previous action is retrieved.
The undo function is useful, for example, if you are performing a zero span mea-
surement with several markers and a limit line defined and accidentally click the
"ACP" softkey. In this case, very many settings would be lost. However, if you
press [UNDO] immediately afterwards, the previous status is retrieved, i.e. the zero
span measurement and all settings.
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The [REDO] key repeats the previously reverted action, i.e. the most recently per-
formed action is repeated.
The [UNDO] function is not available after a [PRESET] or "RECALL" operation. When
these functions are used, the history of previous actions is deleted.
3.4.2.7
Softkeys
Softkeys are virtual keys provided by the software. Thus, more functions can be provi-
ded than those that can be accessed directly via the function keys on the device. Soft-
keys are dynamic, i.e. depending on the selected function key, a different list of soft-
keys is displayed on the right side of the screen
A list of softkeys for a certain function key is also called a menu. Each softkey can
either represent a specific function, or a submenu that in turn represents several soft-
keys.
Selecting softkeys
► A particular softkey is selected by pressing the key on the screen with a finger,
mouse pointer or other pointing device.
Softkeys can only be operated via the screen, there are (usually) no corresponding
function keys.
Navigating in softkey menus
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The "More" softkey indicates that the menu contains more softkeys than can be
displayed at once on the screen. When pressed, it displays the next set of soft-
keys.
Basic Operations
