R&S ESR Series, Руководство пользователя

Страница: 76 / 1126

Quick Start
R&S
®
ESR
73 User Manual 1175.7068.02 ─ 12
When you press this key, the display switches between the following options:
●
Keyboard displayed at the top of the screen
●
Keyboard displayed at the bottom of the screen
●
No keyboard displayed
You can use the TAB key on the on-screen keyboard to move the focus from one field
to another in dialog boxes.
3.4.2.4 Keypad
The keypad is used to enter alphanumeric parameters. It contains the
following keys:
●
Alphanumeric keys
Enters numbers and (special) characters in edit dialog boxes. For
details refer to
Chapter 3.4.3.1, "Entering Numeric Parameters" ,
on page 78 and Chapter 3.4.3.2, "Entering Alphanumeric
Parameters" , on page 78.
●
Decimal point
Inserts a decimal point "." at the cursor position.
●
Sign key
Changes the sign of a numeric parameter. In the case of an alphanumeric parame-
ter, inserts a "-" at the cursor position.
●
Unit keys (GHz/-dBm MHz/dBm, kHz/dB and Hz/dB)
These keys add the selected unit to the entered numeric value and complete the
entry.
In the case of level entries (e.g. in dB) or dimensionless values, all units have the
value "1" as mulitplying factor. Thus, they have the same function as an ENTER
key. The same is true for an alphanumeric entry.
●
ESC key
Closes all kinds of dialog boxes, if the edit mode is not active. Quits the edit mode,
if the edit mode is active. In dialog boxes that contain a "Cancel" button it activates
that button.
For "Edit" dialog boxes the following mechanism is used:
–
If data entry has been started, it retains the original value and closes the dialog
box.
– If data entry has not been started or has been completed, it closes the dialog
box.
●
BACKSPACE key
–
If an alphanumeric entry has already been started, this key deletes the charac-
ter to the left of the cursor.
Basic Operations