# :MARKer Tracking Marker Commands

: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

Tracking markers measure the position and magnitude at any sample point on a single-valued waveform. Tracking markers can be placed on Waveform, Decibels (Hz), Degrees (Hz), Seconds (Hz), Time-Ohms, Time-Volts, and Time-% waveform content windows. When a tracking marker is placed on a Decibels (Hz), Degrees (Hz), and Seconds (Hz) window, it appears on the same x position on all three of these windows.