# :MEASure:SNDRatio:RLMismatch

SNDR Ratio of Level Mismatch Commands

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

## Command Syntax

    :MEASure:SNDRatio:RLMismatch

## Query Syntax

    :MEASure:SNDRatio:RLMismatch?

## Description

For PAM3 and PAM4 signal types (see `:<source>:SIGNal:TYPE`), the Ratio of Level Mismatch is a measure of the smallest separation between adjacent levels divided by the ideal separation.

When adding this measurement, the waveform on which measurements are made depends on the selected SNDR Standard (see `:<source>:SNDRatio:STANdard`).

Waveform on which measurements are made for PAM4 SNDR standards
Standard | Standard Name | Waveform on which measurements are made
--- | --- | ---
PCIe | PCIe | The selected Source input channel
IEEe | IEEE (PRBS13Q) | The SNDR Input waveform
IDJ | IEEE 802.3 dj | The SNDR Input waveform
ASA45 | ASA SG4, 5 | The SNDR Input waveform

Waveform on which measurements are made for PAM3 SNDR standards
Standard | Standard Name | Waveform on which measurements are made
--- | --- | ---
USB4 | USB4 Gen 4 | The SNDR Input waveform

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

## Example Command Sequence

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