Instrument Tour
R&S
®
ESW
48
Getting Started 1328.4922.02 ─ 06
Undo and redo functionality
Reverts the software to an older state by erasing the last change you have
applied.
The undo function is useful, for example, if you are performing a measure-
ment with several markers and a limit line and accidentally select a different
measurement. In this case, a lot of settings would be lost. However, if you
press [UNDO] immediately afterwards, the previous status is retrieved.
Reverses an undo action or repeats the most recently performed action.
The [UNDO] function is not available after a [PRESET] or "RECALL" opera-
tion. When these functions are used, the history of previous actions is
deleted.
5.1.11
The Keypad
The alphanumeric keys allow you to enter alphanumeric characters where neces-
sary (for example in dialog boxes or input fields). The keypad containing the
alphanumeric keys also provides keys that select a particular unit.
...
Provide access to numbers and (special) characters.
Inserts a decimal point at the cursor position (".").
Changes the sign of a numeric value or inserts a dash character ("-") in
case of alphanumeric input.
...
Select a particular unit for a numeric value. The labels on and next to the
key state the units it selects.
Pressing one of the unit keys also completes the entry of a numeric value.
Note that in case of level entries (dB, dBm etc.) or dimensionless values, all
unit keys have the value "1" as multiplying factor and thus work like the
[ENTER] key..
The Front Panel
