# :DIFF:SIGNal:TYPE

:DIFF General Commands

- :DIFF:COLor
- :DIFF:COPY
- :DIFF:CWINdow
- :DIFF:DESKew
- :DIFF:DISPlay
- :DIFF:DMODe
- :DIFF:FCHan?
- :DIFF:PATTern:FILE:GCODe
- :DIFF:PATTern:FILE:NAME
- :DIFF:PATTern:FILE:RELoad
- :DIFF:PATTern:INVert
- :DIFF:PATTern:KPATtern
- :DIFF:PATTern:MODE
- :DIFF:SCHan?
- :DIFF:SIGNal:TYPE
- :DIFF:SNOise:CALibrate
- :DIFF:SNOise:SNValue:LEVel{0:3}?
- :DIFF:STATus?
- :DIFF:TDELay
- :DIFF:UNAMe

## Command Syntax

    :DIFFN:SIGNal:TYPE {UNSPecified | NRZ | PAM3 | PAM4}

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:SIGNal:TYPE?

## Description

Specifies a differential channel's signal type. This can be useful if the waveform is too degraded to automatically detect its type.

The default signal type is Unspecified.

## Example Command Sequence

    :DIFF3:SIGNal:TYPE PAM4

The PAM options are available when the PAM-N analysis software license is installed.