Getting Started
R&S
®
SMW200A
42User Manual 1175.6632.02 ─ 16
Turning off the AC power
You can leave the AC power on permanently. Switching off is required only if the
instrument must be disconnected from all power supplies.
2.1.1.7 Functional Check
When the instrument is switched on, it automatically monitors the main functions.
A detected fault is indicated by an "Error" message displayed in the "Info" line of the
instrument together with a brief error description. For an in-depth identification of the
error, press the "Info" button. In response, a description of the errors is displayed. For
more information, refer to the "Troubleshooting and Error Messages" section in the
user manual.
In addition to the automatic monitoring, the R&S SMW offers the following capabilities
to assure correct functioning:
●
Internal adjustments
Select the "System Config > Setup > General > Internal Adjustments" to access the
dialog for performing and configuring the adjustments settings.
●
Self-test
A self-test is provided for service purposes ("System Config > Setup > Mainte-
nance > Selftest").
●
Test points
If necessary for service purposes, internal test points can be queried. These tests
are protected test procedures, which can be accessed if protection level 2 is dis-
abled. The corresponding procedure is described in the Service Manual.
2.1.1.8 Default Settings
When the instrument is switched on, it is not the preset state that is active, but the
state that was set before the instrument was switched off. Use the PRESET function to
return the instrument to its defined preset state every time a new configuration is
required or the current setup is no longer relevant.
The R&S SMW offers a four-stage preset concept:
●
Preset of one individual parameter
The selective preset on a parameter basis is triggered over the "Preset this param-
eter" function in the context menu
●
Preset of the settings belonging to a digital standard or associated with one dialog
Most of the dialog boxes provide a special "Set to Default" function that resets the
settings associated to the corresponding dialog. This function is available for all
digital modulation settings and in the "Custom Digital Mod" dialog.
These settings are identical to the settings called up using the PRESET key.
●
Preset of the instrument to a predefined state
The PRESET key calls up a defined instrument setup. All parameters and switch-
ing states are preset (also the states of inactive operating modes). The default
instrument settings provide a reproducible initial basis for all other settings. How-
Preparing for Use
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