# :CHANnel:SNOise:SNValue:LEVel{0:3}?

:CHANnel General Commands

- :CHANnel:ATTenuation?
- :CHANnel:COLor
- :CHANnel:COPY
- :CHANnel:COUPling
- :CHANnel:CWINdow
- :CHANnel:DB?
- :CHANnel:DISPlay
- :CHANnel:IMPedance
- :CHANnel:GAIN?
- :CHANnel:PATTern:FILE:GCODe
- :CHANnel:PATTern:FILE:NAME
- :CHANnel:PATTern:FILE:RELoad
- :CHANnel:PATTern:INVert
- :CHANnel:PATTern:KPATtern
- :CHANnel:PATTern:MODE
- :CHANnel:SIGNal:TYPE
- :CHANnel:SKEW
- :CHANnel:SNOise:CALibrate
- :CHANnel:SNOise:SNValue:LEVel{0:3}?
- :CHANnel:SRANge?
- :CHANnel:STATus?
- :CHANnel:UNAMe

## Query Syntax

    :CHANnelN:SNOise:SNValue:LEVel{0:3}?

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`.

## Description

This query returns the calibrated oscilloscope noise value at the specified level.

AN NRZ signal has LEVel0 and LEVel1. A PAM3 signal has LEVEL0, LEVel1, and LEVel2. A PAM4 signal has LEVEL0, LEVel1, LEVel2, and LEVel3.

Use the `:CHANnel:SNOise:CALibrate` command to start the oscilloscope noise calibration.