# :DIFF:SNDRatio:RNComp

:DIFF SNDR Setup Commands

- :DIFF:SNDRatio:FILE:NAME
- :DIFF:SNDRatio:FILE:RELoad
- :DIFF:SNDRatio:LFPDelay
- :DIFF:SNDRatio:LFPLength
- :DIFF:SNDRatio:NAVerages
- :DIFF:SNDRatio:PUINterval
- :DIFF:SNDRatio:RLMStandard
- :DIFF:SNDRatio:RNComp
- :DIFF:SNDRatio:RNCValue:LEVel
- :DIFF:SNDRatio:SAVE
- :DIFF:SNDRatio:SAVE:FILE
- :DIFF:SNDRatio:STANdard

## Command Syntax

    :DIFFN:SNDRatio:RNComp {OFF | AUTomatic | CUSTom}

Where N identifies a specific differential waveform in the form "<connection1-8>_<ch1|ch3|ch5|ch7>". With connection 1, the connection number part (that is, "1_") is optional, and you can simply use the channel number "<ch1|ch3|ch5|ch7>". When two channels are paired to create a differential waveform and a common-mode waveform, the odd-numbered channel is used when specifying the waveform. For example, connection 5 differential waveform 3 (from the pairing of channels 3 and 4) is `DIFF5_3`.

## Query Syntax

    :DIFFN:SNDRatio:RNComp?

## Description

This command disable disables RN compensation (`OFF`), enables compensation for oscilloscope RN (`AUTomatic`), or enables user-defined values for RN compensation (`CUSTom`).

If there are known contributors to random noise, you can use RN Compensation to compensate or remove noise from the measurement results.

When `CUSTom` is selected, use the `:DIFF:SNDRatio:RNCValue:LEVel` command to specify the appropriate RN compensation values for the symbol levels.