Each marker can have a number of attributes. The attribute is indicated with some letters after the marker info. The color of the marker is identical to the trace on which the marker is positioned
- DELTA gives the frequency and the signal level relative to another marker. When the display unit is set to dBm this delta marker is equivalent to dBc
- NOISE is a noise marker. Its level display is normalized by RBW per Hz and the level has a "/Hz" suffix.
- TRACKING enables automatic positioning of the marker at the strongest signals. Tracking markers are labeled 'T'. Multiple markers can be tracking and they will be positioned on the next strongest signal
- TRACE AVERAGE sets the value of the marker to the average over the trace it is positioned on.
