HP 1660 Series

Measurement and Display FunctionsMeasurement and Display Functions
Time MarkersTi me Mar k er s Two vertical markers, X and O, are provided for measurements of t ime
and voltage. Capabilities are: measure voltage at point where X and O markers cross
each analog waveform; measure time from trigger to X, t rigger to O, and X t o O;
automatic marker placement by specifying percentage of edge, edge number, and rising
or falling edge type; run until X to O > than, < than, in range, and not in range provides
selective event search; X to O statistics (mean, max, and min) provide analysis of time
int erval deviat ion.
Vol t age Mar k er sVol t age M ar k er s Two horizontal markers, A and B, are provided for volt age
measurements. These markers can each be placed on any acquisition channel trace. A
delta voltage display provides delta V between markers on the same channel or between
channels.
Aut omat ic SearchAut omat i c Sear ch Searches for a percentage volt age level at a positive or negative
edge, count adjustable from 1 to 100.
Auto Search StatisticsAut o Sear ch St at ist ics Mean, maximum, and minimum values for elapsed time from X
to O markers for multiple runs. Number of valid runs and total number of runs available.
Automatic MeasurementsAut omat ic Measurement s The following pulse parameter measurements can be
performed automatically:
Frequency Rise time + pulse width
Period Fall time − pulse width
V p-p Preshoot V
amplitude
*
Over shoot
(*gives difference between top and base voltages; only available over bus)
Gri dGrid Graticules can be displayed in background of waveform.
Setup AidsSetup Aids
Aut oscale:Aut oscal e: Autoscales the vertical and horizontal ranges, offset, and t rigger level t o
display the input signals. Requires a frequency between 50 Hz and 250 MHz.
Preset sPr eset s Scales the vertical range, offset, and t rigger level t o predetermined values for
displaying ECL or TTL waveforms.
CalibrationCal i br at i on Vert ical, trigger, delay, and all defaults. Calibration factors stored in
NV-RAM on the circuit board.
Probe Compensation SourceProbe Compensat ion Source External BNC supplies a square wave approximately 0.0
mV to -800 mV into the open circuit at approximately 1000 Hz.
General Information
Supplemental Characteristics (oscilloscope)
1–12