:CHANnel:CRECovery:SOPLl:OJTF:DFACtor

:CHANnel CRECovery Commands

Command Syntax

:CHANnelN:CRECovery:SOPLl:OJTF:DFACtor <damping_factor>

Where N identifies a specific channel in the form "<connection1-8>_<ch1-8>". With connection 1, the connection number part (that is, "1_") is optional, and you can simply use the channel number "<ch1-8>". For example, connection 4 channel 2 is CHANnel4_2.

<damping_factor> is a double.

Query Syntax

:CHANnelN:CRECovery:SOPLl:OJTF:DFACtor?

Description

When specifying the PLL's loop bandwidth in terms of the OJTF 3 dB BW, you also need to specify the damping factor of the JTF.

< 1 underdamped
> 1 overdamped
= 1.0 critically damped
= 0.707 Often considered ideal or optimal because of its fast settling time (optimally flat) and Butterworth type response.

Example Command Sequence

:CHANnel1:CRECovery:MODE SOPLl
:CHANnel1:CRECovery:PLL:MODE OJTF
:CHANnel1:CRECovery:SOPLl:OJTF:LBDivisor 1.670E+3
:CHANnel1:CRECovery:SOPLl:OJTF:DFACtor 0.707