# :MEASure:SNDRatio:LMEans

SNDR Level Means Commands

- :MEASure:SNDRatio:LMEans
- :MEASure:SNDRatio:LMEans:FAVorite
- :MEASure:SNDRatio:LMEans:LEVel
- :MEASure:SNDRatio:LMEans:LOCation?
- :MEASure:SNDRatio:LMEans:SOURce
- :MEASure:SNDRatio:LMEans:STATus?
- :MEASure:SNDRatio:LMEans:STATus:DETails?
- :MEASure:SNDRatio:LMEans:STATus:REASon?
- :MEASure:SNDRatio:LMEans:UREFerence:STATe
- :MEASure:SNDRatio:LMEans:UREFerence:VALue

## Command Syntax

    :MEASure:SNDRatio:LMEans

## Query Syntax

    :MEASure:SNDRatio:LMEans?

## Description

For each level, this measurement returns the mean level of long-run-lengths within the pattern. These are the same long-run-lengths used in the Sigma-n measurement.

When adding this measurement, the measurement name(s) depend on the selected SNDR Standard (see `:<source>:SNDRatio:STANdard`):

Measurement Names
Signal Type | Standard | Standard Name | Measurement Names | Waveform on which measurements are made
--- | --- | --- | --- | ---
NRZ | ASA13 | ASA SG1-3 | SNDR Level 0-1 | The SNDR Input waveform
PAM4 | PCIe | PCIe | Sigma-n Level 0-3 | The selected Source input channel
PAM4 | IEEe | IEEE (PRBS13Q) | SNDR Level 0-3 | The SNDR Input waveform
PAM4 | IDJ | IEEE 802.3 dj | SNDR Level 0-3 | The SNDR Input waveform
PAM4 | ASA45 | ASA SG4, 5 | SNDR Level 0-3 | The SNDR Input waveform
PAM3 | USB4 | USB4 Gen 4 | SNDR Level 0-2 | The SNDR Input waveform

SNDR measurement parameters are defined for the waveform source selected by `:MEASure:SNDRatio:LMEans:SOURce`.

## Example Command Sequence

    :MEASure:SNDRatio:LMEans:SOURce CHANnel1
    :CHANnel1:SNDRatio:STANdard PCIe
    :CHANnel1:SNDRatio:PUINterval 32
    :CHANnel1:SNDRatio:NAVerages 8
    :CHANnel1:SNDRatio:LFPLength 600
    :CHANnel1:SNDRatio:LFPDelay 8
    :MEASure:SNDRatio:LMEans
    :MEASure:SNDRatio:LMEans?