Command Syntax

:SPRocessN:CTLequalizer:ZERO{1|2} <zero_frequency>

<zero_frequency> is a double.

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:CTLequalizer:ZERO?

Description

Specifies the zero frequency of a continuous Time Linear Equalizer (CTLE) operator. For a two or three pole CTLE, use :ZERO1 to enter the Zero 1 frequency. For a three pole CTLE, use :ZERO2 to enter the Zero 2 frequency. The CTLE is a first-order transfer function defined by DC gain (:SPRocess:CTLequalizer:GAIN), zero frequency, and two or three poles (:SPRocess:CTLequalizer:POLe). Use the :SPRocess:CTLequalizer:DEFinition command to select the type of CTLE operator.

Commands Available for Defining a CTLE Operator

Child Commands	Description	CTLE Definition Argument
		POLE2	POLE3	GAIN2
:SPRocess:CTLequalizer:DEFinition	Selects type of CTLE	■	■	■
:SPRocess:CTLequalizer:GAIN	DC gain	■	■
:SPRocess:CTLequalizer:GAIN:NORMalize	Turns DC gain on or off	■	■
:SPRocess:CTLequalizer:GDC	Low frequency gain (Gdc and Gdc2)			■
:SPRocess:CTLequalizer:ZERo	Zero frequency	■	■	■
:SPRocess:CTLequalizer:FZP	Low-frequency zero/pole			■
:SPRocess:CTLequalizer:POLe	Pole frequency	■	■	■
:SPRocess:CTLequalizer:PNOise	Noise processing	■	■	■
:SPRocess:CTLequalizer:PRESets	Recall and save CTLE settings as preset	■	■	■

For Reference Rx operator, what function do I send this command to?

If the CTLE equalizer is a secondary function to the Reference Rx operator, address the :SPRocess:CTLequalizer:ZERo 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:CTLequalizer:ZERo

Example Command Sequence

:FUNCtion2:FOPerator CTLequalizer
:SPRocess2:CTLequalizer:GAIN 1.2
:SPRocess2:CTLequalizer:ZERO1 4.0E9
:SPRocess2:CTLequalizer:POLE1 10E9
:SPRocess2:CTLequalizer:POLE2 15.0E9
:FUNCtion2:COLor TCOLor4
:FUNCtion2:DISPlay ON
*OPC?
…  //  Your code to synchronize execution timing.