:SPRocess:FFEQualizer:NPRecursors
Command Syntax
:SPRocessN:FFEQualizer:NPRecursors <precursors>
<precursors> is a int.
Where N identifies one of up to 64 possible operators {1:64} that can be defined as part of a math function. The operators are numbered in the order that they were originally added to the function.
Query Syntax
:SPRocessN:FFEQualizer:NPRecursors?
Description
Specifies precursors for a Linear Equalizer operator (LFE). To enter the number of taps, use the :SPRocess:FFEQualizer:TAPS:COUNt command. Before you can use these commands, turn on the automatic determination of tap values (:SPRocess:FFEQualizer:TAPS:AUTo ON). To manually enter tap values, first disable automatic tap configuration (:SPRocess:FFEQualizer:TAPS:AUTo OFF), then use the :SPRocess:FFEQualizer:TAPS command.
For Reference Rx operator, what function do I send this command to?
If the FFE (Linear Equalizer) equalizer is a secondary function to the Reference Rx operator, address the :SPRocess:FFEQualizer:NPRecursors command to the Reference Rx function as identified in the following Reference Rx Setup dialog's operator diagram. In the following figure, this would be Function 2 and the command would be:
:SPRocess2:FFEQualizer:NPRecursors
The Linear Feedforward Equalizer operator is provided with the N1010A-201 Advanced Waveform Analysis license.
Beginning with FlexDCA revision A.05.60, use of an *OPC? query to pause program execution while waiting for this command to execute.
Example Command Sequence
:FUNCtion2:FOPerator FFEQualizer :SPRocess2:FFEQualizer:TAPS:AUTo ON;*OPC? :SPRocess2:FFEQualizer:TAPS:COUNt 5;*OPC? :SPRocess2:FFEQualizer:NPRecursors 3;*OPC? :SPRocess2:FFEQualizer:TSPacing:TPBit 2 :SPRocess2:FFEQualizer:BANDwidth:AUTo OFF :SPRocess2:FFEQualizer:BANDwidth 8.0E9 :FUNCtion2:COLor TCOLor4 :FUNCtion2:DISPlay ON *OPC? … // Your code to synchronize execution timing.