Teledyne LeCroy LabMaster 10Zi Getting Started Manual - Manual (Page 127)

LabMaster 10 Zi Oscilloscopes
120 LM10Zi-GSM-E Rev A
WaveStream Display Mode
This fast viewing mode provides brightness-graded intensity
with a decay time similar to the action of phosphor on an
analog screen.
WaveStream mode operates at up to 80 GS/s with an update
rate of up to several thousand waveforms/second for better capture of
higher frequency abnormal events.
Adjusting Trace Intensity
The I
NTENSITY
knob adjusts the brightness of your trace.
The intensity value is shown in the bottom-right corner of the screen.
Pushing the Intensity knob changes the Persistence status in the
following ways.

OFF - When the button hasn't been pushed, it may be turned to
control the trace Intensity control value.

Analog Persistence - When the button is pushed once, the
waveform resembles a trace on a phosphor oscilloscope. Turning
the knob affects persistence with a blended form of Intensity and
Saturation. As the knob is turned clockwise, the Intensity value
increases while the Saturation value decreases. The opposite
occurs when the button is turned counter clockwise.