Preparing for Use
R&S
®
SMU200A
22Operating Manual 1007.9845.32 ─ 15
In the two-path mode, the frequency entry field that was active last is activated. Pressing
the key again activates frequency entry for the second path.
RF ON/OFF
Switches the RF signal on and off.
In the two-path mode, the RF ON/OFF key switches all RF signals off. A second stroke
restores the status that was active before the last switch-off.
"RF OFF" is displayed in the header next to the "Frequency" field.
LEVEL
Activates level entry.
In the two-path mode, the level entry field that was active last is activated. Pressing the
key a second time activates level entry for the second path.
MOD ON/OFF
Switches the modulations on and off.
In the two-path mode, the MOD ON/OFF key switches all modulations off. Pressing the
key again restores the status that was active before the last switch-off.
"MOD OFF" is displayed in the info line of the header next to the "Level" field.
FILE
Activates the menu for storing or loading files (see chapter 4.7, "File Management",
on page 113).
RECALCULATE
Starts the recalculation of instrument settings.
If time-consuming calculations are required, the active modulation is automatically
switched off and the calculation is interrupted to allow the user to make further settings.
Calculation is restarted by a keystroke and the modulation is switched on again after the
calculation is completed.
2.1.4.2 Display Keys
The keys on top of the rotary knob and the keys below the numeric key pad arrange
different windows on the display.
DIAGRAM
Brings the block diagram to the foreground. Active menus are minimized. Active menus
are indicated by the buttons in the "Winbar".
ESC
The function of this key depends on the current cursor position.
●
Calls the next higher selection level.
●
Closes the open window without accepting new entries; the old value or parameter
is retained.
●
In dialog boxes that contain a "Cancel" button it activates that button.
Front Panel Tour