This subsystem provides access to service and diagnostic routines used in service, maintenance and repair. In accordance with the SCPI standard all commands are device-specific.
Service functions are password-protected (SYSTem:PASSword[:CENable]) and should be used by a R&S service representative only. Refer to the service manual for more information.
Command tree: DIAGnostic
:ALC
:SETTings
:DEVice
:SERVice
Enables or disables automatic bandwidth setting.
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<Boolean> |
ON | OFF - automatic bandwidth on or off. |
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*RST value |
ON
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
DIAG:ALC:SETT ON Enable automatic level control. DIAG:ALC:AUBW OFF; BW 10000 Disable automatic bandwidth setting and select a 10 kHz loop bandwidth. DIAG:ALC:CLAM ON; RANGE 4 Suspend the ALC during the measurement and select a 4 dB control range. DIAG:ALC:STOL WIDE Select a wide settling tolerance window. DIAG:ALC:PIP MAN; :DIAG:ALC:PIP:GAIN 0.35; ITIM 6E-7 Enable manual entry of PI controller parameters and define the proportional gain and the integration time. DIAG:ALC:SOFF 1 Define a 1 dB ALC start offset. ... Change last setting; cause the analyzer to use the ALC offset of the previous measurement.
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Selects the bandwidth in the ALC control loop. The setting takes effect when automatic bandwidth setting is disabled.
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<bandwidth> |
Bandwidth setting |
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Range [def. unit] |
20 Hz to 7.12 MHz [Hz]. For a list of possible value refer to ALC All Channels. |
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*RST value |
1 kHz
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Suspends the ALC mechanism while the analyzer acquires measurement data (Clamp ALC during Measurement).
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<Boolean> |
ON | OFF - Clamp ALC... on or off. |
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*RST value |
OFF
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Enables automatic or manual setting of the PI controller parameters.
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Parameters |
AUTO –
Automatic setting, depending on the bandwidth (DIAGnostic:ALC:BW) |
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*RST value |
NORMal
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Defines the proportional gain of the PI controller. This setting takes effect when manual setting of the controller parameters is enabled (DIAGnostic:ALC:PIParameter MANual).
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<prop_gain> |
Proportional gain setting |
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Range [def. unit] |
0.001 to 100 [1]. UP and DOWN increment the proportional gain in 0.001 steps. |
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*RST value |
0.4
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Defines the integration time of the PI controller. This setting takes effect when manual setting of the controller parameters is enabled (DIAGnostic:ALC:PIParameter MANual).
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<prop_gain> |
Integration time setting |
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Range [def. unit] |
10 ns to 100 s [s]. UP and DOWN increment the integration time in 10 ns steps. |
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*RST value |
500 ns
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Causes the analyzer to use the ALC of the previous measurement as an ALC start offset value (Use ALC Offset of Prev. Measurement).
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<Boolean> |
ON | OFF -Use ALC Offset... on or off. |
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*RST value |
OFF
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Defines the maximum change of the source signal level due to the ALC (Control Range).
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<cont_range> |
Control range setting |
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Range [def. unit] |
0 dB to 100 dB [dB]. The control range setting must be compatible with the specified source power of the analyzer. 0 dB effectively disables the ALC. UP and DOWN increment the control range in 0.1 dB steps. |
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*RST value |
5 dB
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Enables or disables the Automatic Level Control for all channels.
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<Boolean> |
ON | OFF – ALC on or off. |
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*RST value |
OFF
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW See SOURce<Ch>:POWer<Pt>:ALC:CONTrol
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Increases or decreases the signal level before the ALC loop is started (Start Offset).
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<start_offset> |
Start offset |
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Range [def. unit] |
–3 dB to +3 dB [dB]. UP and DOWN increment the start offset in 0.1 dB steps. |
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*RST value |
0.0 dB
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Defines the variation of the ALC-controlled source signal level (Settling Tolerance Window).
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Parameters |
WIDE –
Wide tolerance window (1 dB) |
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*RST value |
NORMal
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
See DIAGnostic:ALC:SETTings:AUBW
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Generates a System Report and writes it to the specified file. See Obtaining Support.
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'<file_name>' |
String parameter containing the file name. If no path is specified, the file is stored to the directory C:\Rohde&Schwarz\Nwa\Report; the extension *.zip is appended automatically. |
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*RST value |
–
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SCPI, Command Types |
Device-specific, command or query.
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Example: |
DIAG:DEV:STAT 'report_16112010_1120' Generate a report and store it to C:\Rohde&Schwarz\Nwa\Report\report_16112010_1120.zip. Use the MMEMory... commands to rename, move, or delete the file.
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Activates a service function (for internal use only).
Turns the internal source power at all ports and the power of all external generators on or off. This command is equivalent to OUTPut<Ch>[:STATe].
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<Boolean> |
ON | OFF - Switches the power on or off. |
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*RST value |
ON
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SCPI, Command Types |
Device-specific, command or query
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Example: |
DIAG:SERV:RFP OFF Turn off the RF source power.
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