User`s guide

Verify Calibration - This verification does NOT change any calibration values, it only checks them and suggests whether
or not a calibration should be performed. As the next step after verification, a calibration may need to be performed.
View List - Displays open tools. User can activate open tool by selecting.
Voffset (mV) - Position the histogram box vertically.
Voltage Average/RMS - Toggle on or off the display/measurement of Average and RMS values.
Voltage Extremes - Toggle on or off the display/measurement of Vmax, Vmin and Vpk-pk.
Voltage Measures button - This button opens a menu allowing the choices of various voltage measurements such as
Vmax, Vmin, Vavg, Vovershoot, Vundershoot, Vmid, Vtop, Vbase.
Voltage Over/Under shoot - Toggle on or off the display/measurement of Overshoot and Undershoot measurement.
This value calculates the difference between the Vmax and Vtop as the Overshoot. The Undershoot is the
difference between the Vmin and Vbase values.
Voltage Typical - Toggle on or off the display/measurement of top (Vtop) and base (Vbase) voltage levels, the
amplitude (Vampl) between these two values and the midpoint (Vmid) of these points.
Volts Per Division - Sets the Vertical Scale or use the
"Vertical Scale" knob on front panel.
Wavelength - Choose the wavelength of the optical signal
to be measured.
Width (ns) - Scale the width of the histogram box.
Width (ps) - Defines the width of the specification area.
Width (UI) – Scale the width of the histogram box in Unit
Intervals
Window Center - Enter center reference time of a timeband
to be used in calculating statistics when Filters is
enabled.
Window Filter - The Window Filter is a post-processing filter that ignores measurements acquired outside of the filter
parameters. The summary window will show the statistics from the measurements within the filter window and
the histogram view will display the filtered region. The filter does not change the number of samples that fall
within the filtered area, so the Hits Per Edge reflects the total unfiltered histogram. To increase the number of
samples falling in the filtered area, the Hits Per Edge will have to be increased. For example, if there are two
roughly equal distributions displayed without filters and the hits per edge is set to 1000, the probability of a value
occurring in either distribution is equal. Therefore, the filtered data may contain approximately 500 hits.
The window filter can be enabled in either of two ways: choose Max/Min values or choose Center and Width values.
Glossary © WAVECREST Corporation 2005
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