# :MARKer:Y:SOURce:SPARameter

:MARKer Tracking Commands

- :MARKer:X:POSition
- :MARKer:X:SOURce
- :MARKer:X:SOURce:DUT
- :MARKer:X:SOURce:SPARameter
- :MARKer:X:SOURce:TYPE
- :MARKer:Y:SOURce
- :MARKer:Y:SOURce:DUT
- :MARKer:Y:SOURce:SPARameter
- :MARKer:Y:SOURce:TYPE
- :MARKer:Y:STATe
- :MARKer:REFerence

## Command Syntax

    :MARKer:YN:SOURce:SPARameter <parameter>

Where N identifies one of four markers {1:4}{A|B|C}. For example, ``:MARKer2B``.

The <parameter> argument is an S-parameter name with an underscore (_) character between the numbers. For example, the argument for an S21 parameter is S2_1.

## Description

This command controls the same setting as `:MARKer:X:SOURce:SPARameter` command, which should be used instead to encourage consistency. Because manual line markers cannot be placed on S-parameter waveforms, this command applies only to tracking markers.

## Parent Command

- `:MARKer:Y:SOURce`