Rohde & Schwarz SMB 100a - General Instrument Settings; Overview of General Instrument Settings; Default Instrument Settings - Preset Key

General Instrument Settings R&S SMB
1407.0806.32 4.2 E-2
General Instrument Settings
Overview of General Instrument Settings
The section "General Instrument Settings" describes the settings which do not directly affect signal
generation. Most of these settings can only be accessed by means of menus which are opened using
the front panel key.
The general instrument settings affect various functions, such as storing instrument settings using the
FILE
key or setting the IEC/IEEE-bus address in the menu of the SETUP key. The order in which the
descriptions are given corresponds to the layout of the keys on the front panel of the R&S SMB (from
top left to bottom right).
Default Instrument Settings - Preset Key
The PRESET key calls up a defined instrument setup. All parameters and switching states are preset
(also those of inactive operating modes). The default instrument settings provide a reproducible initial
basis for all other settings.
Remote-control command:
*RST
When the instrument is switched on, it is not the preset state that is active, but rather the instrument
state that was set before the instrument was switched off. An exeption is the state of the RF output. The
state of the RF output power-on state can be set to be always off in the EMF menu of the RF block.
User-defined instrument states can be stored and called up in the File menu.
The following table gives an overview of the presets for the most important generator settings. The
other presets can be found in the information accompanying the IEC/IEEE-bus commands (Chapter
"Remote Control Commands - Description").
Table 4-1 Preset state - important generator settings
Setting Preset value
RF frequency 1 GHz
RF level RF output switched off
Reference frequency Internal, adjustment off
Offsets 0
Modulations Switched off
Uninterrupted level setting Switch off; level attenuator mode: AUTO
Internal level control Level ALC: AUTO
User correction Level Ucor: OFF
LF output Switched off
Sweep Switched off
IEC/IEEE-bus address Not changed
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