# :MEASure:EYE:CONTour:RNSValue:LEVel

Eye Contour Configuration Commands

- Eye Contour Configuration Commands
- :MEASure:EYE:CONTour:BERates
- :MEASure:EYE:CONTour:DISPlay
- :MEASure:EYE:CONTour:PSPec
- :MEASure:EYE:CONTour:RJSTabilize
- :MEASure:EYE:CONTour:RJSValue:EYE
- :MEASure:EYE:CONTour:RNSTabilize
- :MEASure:EYE:CONTour:RNSValue:LEVel
- :MEASure:EYE:CONTour:SOURce

## Command Syntax

    :MEASure:EYE:CONTourN:RNSValue:LEVel{0:3} <random_noise>

Where N identifies a group of contour lines and must be {1:16}. <random_noise> is a double.

## Query Syntax

    :MEASure:EYE:CONTourN:RNSValue:LEVel?

## Description

For Random Noise (RN) stabilization, sets the value of RN for the selected eye level of an eye-contour group. PAM4 signals have four possible levels: 0, 1, 2, and 3. PAM3 signals have three possible levels: 0, 1, and 2. NRZ signals has two possible levels: 0 and 1. There are actually four commands, one for each eye level on the signal.

- :MEASure:EYE:CONTour{1:16}:RNSValue:LEVel3 (for PAM4 only)
- :MEASure:EYE:CONTour{1:16}:RNSValue:LEVel2 (for PAM3 and PAM4 only)
- :MEASure:EYE:CONTour{1:16}:RNSValue:LEVel1 (for NRZ, PAM3, and PAM4)
- :MEASure:EYE:CONTour{1:16}:RNSValue:LEVel0 (for NRZ, PAM3, and PAM4)

To measure the RN, measure the RN while using a signal that has a short pattern. Or, measure the RN using a separate instrument. Use the `:MEASure:EYE:CONTour:RNSTabilize` command to turn on or off the use of RN stabilization.

Command | Description
--- | ---
:LEVel3 | Applies to level 3. |
:LEVel2 | Applies to level 2.
:LEVel1 (or :LEVel) | Applies to level 1.
:LEVel0 | Applies to level 0.