Tektronix 2465A User Manual

Operation
Normal mode produces a sweep only when the trigger signal meets the Level
and Slope criteria.
Use Normal mode for infrequent events and erratic signals.
Sgl Seq mode accepts one trigger for each sweep in the display. Press the
lower Mode button to arm the trigger and illuminate the READY indicator for
each sequence. With a multi-trace display, a sequence comprises up to sixteen
sweeps.
Use Sgl Seq to detect a rare event or to eliminate all but the first one of a
chaotic burst of pulses. Set the trigger for the signal of interest in Normal mode.
Then press the
lower Mode button to select 8g1 Seq and illuminate the READY
indicator. To detect the occurrence of a rare event,
display a single trace and
arm 8g1 Seq with the trigger set for the event. Periodically check to see if
READY is on. If a burst of trigger events occurs, the sweep runs once for each
trace displayed and READY extinguishes.
Trigger Source
Choose a single trigger source to correctly display the timing relationships
among multiple channels. Choose the channel with the lowest-frequency signal
to avoid ambiguous displays.
With Vert trigger source, Auto Lvi trigger mode or Chop vertical mode
automatically selects a single trigger source, the first one of the displayed
channels.
Use a composite A-Trigger source only to compare asynchronous signals.
To generate a composite trigger, select Vert trigger source, a trigger mode
other than Auto Lvi, and Alt vertical mode.
Trigger Coupling
For noisy signals or signals with strongly interfering components, Noise
Reject, HF Reject, and LF Reject coupling give added selectivity. AC coupling
continues triggering when the dc level of the signal changes.
2465A/2455A/2445A Operators 2-5

Tektronix 2465A Specifications

General

Brand	Tektronix
Model	2465A
Category	Test Equipment
Language	English