Table of Contents
Advertisement
Timebase
Timebase, also known as Horizontal, settings control the trace along the X axis. The timebase is
shared by all channels.
The time represented by each horizontal division of the grid, or Time/Division, is most easily adjusted
using the front panel Horizontal knob. Full Timebase set up, including sampling mode and clock
source selection, is done on the Timebase dialog, which can be accessed by either choosing
Timebase > Horizontal Setup from the menu bar or touching the Timebase descriptor box.
Timebase Set Up
Use the Timebase dialog to select the HD mode, sampling mode, memory and number of active
channels. You can also use it instead of the Front Panel to modify the Time/Div and horizontal Delay.
There are related dialogs for
HD Mode
Choose HD Mode On or Off to enable/disable HD1024 technology.
dynamically configure the ADC and filter bandwidth for 9- or 10-bit resolution. When HD Mode is off,
the oscilloscope operates at continuous 8-bit resolution.
Sampling Mode
Choose from
Real
Time, Sequence, RIS, or
Note: Sequence, RIS, and Roll mode acquisition are not available when operating in HD Mode.
Timebase Mode
Time/Division is the time represented by one horizontal division of the grid. Touch the Up/Down
Arrow buttons on the Timebase dialog or turn the front panel Horizontal knob to adjust this value.
Delay is the amount of time relative to the trigger event to display on the grid. Raising/lowering the
Delay value has the effect of shifting the trace to the right/left. This allows you to isolate and display
a time/event of interest that occurs before or after the trigger event.
Pre-trigger Delay, entered as a negative value, displays the acquisition time prior to the trigger
l
event, which occurs at time 0 when in Real Time sampling mode. Pre-trigger Delay can be set
up to the instrument's maximum sample record length; how much actual time this represents
depends on the timebase. At maximum pre-trigger Delay, the trigger position is off the grid
(indicated by the arrow at the lower right corner), and everything you see represents 10
divisions of pre-trigger time.
Clock Source
and
HD
Roll
mode.
Summary.
HD1024
Acquisition
is enabled by default to
47
Advertisement
Table of Contents
