Tektronix TDS3000B Series Reference

27
Bottom DescriptionSide
Source
Vert Sets the trigger source to the
lowest-numbered active channel
in the display.
Alternating
(all active chan-
nels)
Sequentially uses each active
channel as a trigger source, from
the lowest-numbered active
channel to the highest-numbered
active channel.
Coupling
DC Selects DC coupling.
HF Reject Rejects frequencies above
30 kHz in the trigger signal.
LF Reject Rejects frequencies below
80 kHz in the trigger signal.
Noise Reject DC coupling with low sensitivity
to reject noise in the trigger
signal.
Slope
/ (rising edge) Triggers on the rising edge of a
signal.
\ (falling edge) Triggers on the falling edge of a
signal.
28
Bottom DescriptionSide
Level
Level Use to set the trigger level with
the general purpose knob.
Set to TTL Sets the trigger level to +1.4 V
for TTL logic.
Set to ECL Sets the trigger level to –1.3 V for
ECL logic (V
ee
= –5.2 V).
Set to 50% Sets the trigger level to the 50%
amplitude level of the signal.
Mode &
Holdoff
Auto (untriggered
roll)
Enables free-running and roll-
mode acquisitions.
Normal Triggers only on valid trigger
events.
Holdoff (time) Sets holdoff to a specific time.
Holdoff
(% of record)
Sets holdoff to a percent of the
record duration.
Set to Min Sets holdoff to the minimum
value.

Tektronix TDS3000B Series Specifications

General

Brand	Tektronix
Model	TDS3000B Series
Category	Test Equipment
Language	English