# :MEASure:MARKer:IDX?

Marker 1/ΔX Commands

- :MEASure:MARKer:IDX?
- :MEASure:MARKer:IDX:STATus?
- :MEASure:MARKer:IDX:STATus:REASon?

## Query Syntax

    :MEASure:MARKer:IDX{1:4}?

This command supports the `STATus?` and `STATus:REASon?`common child commands.

## Description

Queries the reciprocal of the DX? marker measurement. The two markers can have different source waveforms. Use the :MARKer subsystem to turn on markers.

## Example Command Sequence

    :MARKer:X1:SOURce CHANnel1
    :MARKer:X2:SOURce CHANnel2
    :MARKer:Y1A:STATe TRAC  //  Marker 1 turned on as a manual marker
    :MARKer:Y2A:STATe TRAC  //  Marker 2 turned on as a waveform tracking marker
    …
    :MEASure:MARKer:IDX2?