Tektronix TekScope THS 710, User Manual

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Glossary
Glossary–8
THS 710 & THS 720 User Manual
Standby (STBY)
The off-like state when the instrument in not in use. Some
circuits are active even while the instrument is in the standby
state.
Tek Secure
A feature that erases all waveform and setup memory locations
(setup memories are replaced with the factory setup). Then it
checks each location to verify erasure. This feature is useful
where the oscilloscope is used to gather security-sensitive data.
Time Base
The set of parameters that let you define the time and horizontal
axis attributes of a waveform record. The time base determines
when and how long to acquire record points.
Vertical Bar Cursors
The two vertical bars you position to measure the time
parameter of a waveform record. The oscilloscope displays the
value of the active (moveable) cursor with respect to trigger and
the time value between the bars.
Video Trigger
Triggering on the sync pulse of a composite video signal.
XY Format
A display format that compares the voltage level of two
waveform records point by point. It is useful for studying phase
relationships between two waveforms.
YT Format
The conventional oscilloscope display format. It shows the
voltage of a waveform record (on the vertical axis) as it varies
over time (on the horizontal axis).