sub-level nodes to GSM/EDGE:Use the following links to navigate to the topics containing the cell descriptions and SCPI commands for the sub-level nodes to GSM/EDGE:
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view the settings for an unframed signal with a continuous data pattern |
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view the settings for a framed signal with or without a secondary frame |
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view the settings for configuring the data for both an unframed or framed signal |
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view the settings for configuring the data for both a non-combined and combined BCH |
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configure the various trigger signals and input signal AUX ports/pins |
Use this topic to view the descriptions and SCPI commands for the settings in the node. To view the dialog boxes used with some of the GSM/EDGE node settings, go to Dialog Boxes.
Use the following links to navigate to and view the available GSM/EDGE node settings:
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Choices: Continuous | Framed
Default: Continuous
Double click the cell, or click in the cell and use the drop-down menu to select the data format:
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Modulate with unframed data using choices such as pseudo-random, custom pattern, externally applied data, or user data. |
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Enables the construction of framed bursted timeslots corresponding to the standard. Also enables the choice to configure secondary frame settings. |
[:SOURce]:RADio:EDGE[:BBG]:BURSt[:STATe] ON|OFF|1|0
[:SOURce]:RADio:EDGE[:BBG]:BURSt[:STATe]?
Range: 10 sps–271 ksps
Default: 270.833333 ksps
Modify the symbol rate by entering a value.
[:SOURce]:RADio:EDGE[:BBG]:SRATe <val>
[:SOURce]:RADio:EDGE[:BBG]:SRATe?
Choices: On | Off
Default: On
Double click the cell, or click in the cell and use the drop-down menu to set the choice for differential encoding. Encoding encodes the bits prior to modulation.
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Differential encoding uses an exclusive-OR function to generate a modulated bit. Modulated bits will have a value of 1 if a data bit is different from the previous bit, or they will have a value of 0 if a data bit is the same as the previous bit. |
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Encoding is off. |
[:SOURce]:RADio:EDGE[:BBG]:DENCode ON|OFF|1|0
[:SOURce]:RADio:EDGE[:BBG]:DENCode?
Choices: Normal | Inverted
Default: Normal
Double click the cell, or click in the cell and use the drop-down menu to invert the internal Q signal, reversing the rotation direction of the phase modulation vector.
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Selects normal phase polarity |
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Inverts the internal Q signal |
[:SOURce]:RADio:EDGE[:BBG]:POLarity[:ALL] NORMal|INVerted
[:SOURce]:RADio:EDGE[:BBG]:POLarity[:ALL]?
Choices:Gaussian | EDGE |User FIR Filter | User File
Default: Gaussian with BbT 0.300
Set the filter type by clicking on the cell. Then click the dialog box icon 
to launch the filter Filter Setup dialog box. While this filter uses the same Filter Setup dialog box with the same selections and settings as , this filter is separate and independent from .
Use this filter with the following GSM signal settings:
or
Timeslot Type = a GSM timeslot
Choices:Gaussian | EDGE |User FIR Filter | User File
Default: EDGE
Set the filter type by clicking on the cell. Then click the dialog box icon to launch the Filter Setup dialog box. While this filter uses the same Filter Setup dialog box with the same selections and settings as , this filter is separate and independent from .
Use this filter with the following EDGE signal settings:
or
Timeslot Type = an EDGE timeslot
GUI Range: 0.0625–11 symbols
GUI Default: 3.0000 symbols
SCPI Range: 0.2–33 bits
SCPI Default: 9 bits
Sets the burst shape rise time.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RISE:TIME <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RISE:TIME?
or
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RTIMe <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RTIMe?
GUI Range: -11 to 100 symbols
GUI Default: 0.0000 symbols
SCPI Range: -33 TO 300 bits
SCPI Default: 0 bits
Sets the burst shape rise delay.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RDELay <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RDELay?
or
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RISE:DELay <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:RISE:DELay?
GUI Range: 0.0625–140 symbols
GUI Default: 3.0000 symbols
SCPI Range:0.2–420 bits
SCPI Default: 9 bits
Sets the burst shape fall time.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FALL:TIME <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FALL:TIME?
or
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FTIMe <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FTIMe?
GUI Range: -11 to 100 symbols
GUI Default: 0.0000 symbols
SCPI Range: -11 to 300 bits
SCPI Default: 0 bits
Sets the burst shape fall delay.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FALL:DELay <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FALL:DELay?
or
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FDELay <val>
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:FDELay?
Choices: Sine | User Defined Shape | User File
Default: Sine
Set the burst shape by clicking on the cell. Then click the dialog box icon to launch the burst shape Burst Shape Edit dialog box.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe[:TYPE] SINE|PATTern|"<file name>"
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe[:TYPE]?
If PATTern is the SCPI command choice, use the following command to configure the burst shape.
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:PATTern "<numRisePts,risePts,numFallPts,fallPts>"
[:SOURce]:RADio:EDGE[:BBG]:BURSt:SHAPe:PATTern?
:RAD:EDGE:BURS:SHAP:PATT “6,0,0.2,0.4,0.6,0.8,1.0,2,0.5,0”
From the example:
numRisePts,risePts is the rise shape—numRisePts = 6, risePts = 0,0.2,0.4,0.6,0.8,1.0
{numFallPts,fallPts}is the fall shape—numFallPts = 2, fallPts = 0.5,0
Choices: On | Off
Default: Off
Coupling: grayed out until Data Format =
Turn secondary frame capability either on or off.
[:SOURce]:RADio:EDGE[:BBG]:SECondary[:STATe] ON|OFF|1|0
[:SOURce]:RADio:EDGE[:BBG]:SECondary[:STATe]?
Choice: External
Default: External
Coupling: grayed out until Secondary Frame State =
Trigger the secondary frame from only an external trigger source. Refer to the instrument's User's Guide for information on the input connector.
[:SOURce]:RADio:EDGE[:BBG]:SECondary:TRIGger[:SOURce] EXT
