Last Updated: August 29, 2007
These commands set parameters for the Output RF Spectrum (ORFS) Switching measurement in the ORFS measurement suite.
For more information on the conventions used in the programming examples click here.
Sets/queries the number of averages for the ORFS Switching measurement.
Setting Range: 1 to 999
Query Range: 1 to 999
Resolution: 1
*RST Setting: 10
Test Set Requirements: E6601A WCTS Program Version A.02 and above
Example:
' Set the number of averages for the ORFS Switching measurement to 50.
TestSet.WriteString("SETup:ORFSpectrum:SWITching:COUNt 50")
Sets/queries the list of ORFS Switching frequency offsets. Each offset listed in the command is turned on by default. If no frequency offsets are sent, the ORFS Switching measurement will not be made. The units (GHZ|MHZ|KHZ|HZ) are optional, if no units are specified than units default to HZ.
Setting Range: 0 to 8 comma-separated values ranging from -1800 to 1800 kHz
Query Range: 0 to 8 comma-separated values ranging from -1800 to 1800 kHz
Resolution: 10 Hz
*RST Setting:
Offset 1: 400.0 kHz
Offset 2: 600.0 kHz
Offsets 3 to 8: off
Test Set Requirements: E6601A WCTS Program Version A.02 and above
Example:
' Turn on the first two ORFS due to switching measurement offsets and set
' them to 400 kHz and 700 kHz offsets. All other offsets are in the off state.
TestSet.WriteString("SETup:ORFSpectrum:SWITching:FREQuency 400 KHZ, 700 KHZ")
Queries how many offsets are measured for ORFS Switching.
Query Range: 0 to 8
Resolution: 1
*RST Setting: 2
Test Set Requirements: E6601A WCTS Program Version A.02 and above
Example:
' Query how many offsets are measured for ORFS Switching.
TestSet.WriteString("SETup:ORFSpectrum:SWITching:FREQuency:POINts?")
Sets/queries the absolute limits for the specified custom mask to be used with the ORFS Switching measurement. This command allows you to define two custom masks by specifying CUSTom1 or CUSTom2. When a frequency offset is changed, the limit value is recalculated for the new frequency offset by interpolating the Custom Mask.
A total of 8 reference points (frequency point / limit value mask point pairs) are available to you when defining a custom mask. Any order of points can be entered (without units of measurement), but the list is sorted before being applied to internal settings. A query returns the points in the sorted order. Frequency Offsets that fall outside the Custom Mask will always return a PASS result.
The custom mask is turned off when no points are specified in this command. Note that values must be entered in fundamental units.
Setting Range:
Frequency: -1800 kHz to 1800 kHz
Limit Value: -200 dBm to 200 dBm
Query Range:
Frequency: -1800 kHz to 1800 kHz and 9.91 E+37 (NAN) if no offsets are specified.
Limit Value: -200 dBm to 200 dBm
Resolution:
Frequency: 10 Hz
Limit Value: 0.01 dBm
*RST Setting: 9.91 E+37 (NAN) - no offsets specified
Test Set Requirements: E6601A WCTS Program Version A.02 and above; A.04 added CUSTom1 (previously it was CUSTom) and CUSTom2
Example:
' Turn off the ORFS switching custom mask.
TestSet.WriteString("SETup:ORFSpectrum:SWITching:LIMit:CUSTom")
Queries the number of enabled reference points for the specified ORFS Switching custom mask.
Query Range: 0 to 8
Resolution: 1
*RST Setting: 0
Test Set Requirements: E6601A WCTS Program Version A.02 and above; A.04 added CUSTom1 (previously it was CUSTom) and CUSTom2
Example:
' Query the number of enabled reference points for the ORFS Switching custom mask.
TestSet.WriteString("SETup:ORFSpectrum:SWITching:LIMit:CUSTom:POINts?")