6 53220A/53230A Math, Graphing, and Data Logging
240 Keysight 53220A/53230A User’s Guide
When a marker is moved to a decimation point, the number of the first reading in 
the corresponding group is displayed. This number should be noted if it is 
necessary to view individual readings within a group.
Viewing readings within a decimation group Decimated reading values that 
are grouped and represented by a single decimation point can be viewed 
individually using markers and the trend chart’s Pan control.
1 Select a marker and using the knob, move the marker to the decimation point 
with the reading level of interest. The reading number corresponding to the 
marker position is the first reading in the group. This may not be the maximum 
or minimum value within the group.
2 Select ‘Pan’ and using the [Shift]ed numeric keys, enter the number of the first 
reading. The reading indices show a span of 100 read ings, beginning with the 
first reading in the group.
3 Select Marker1 or Marker2 and using the arrow keys, highlight the rightmost 
(1's) place in the position window. Rotate the knob to move the marker one 
reading at a time. The reading value and number are shown as the marker is 
advanced. 
For decimation groups with more than 100 readings, select ‘Pan’ and enter the 
next reading number after the upper reading index (Figure 6-8) to view the next 
100 readings.