Reference
Runt Pulse Trigger Conditions
Push the
Trigger Menu button, and then push the Type bottom screen button to
select Pulse. The next table lists the menu items when the trigger Type is set
to Pulse, and the Class is set to Runt.
Botto
m
Side Descr
iption
Ch1, C
h2 (Ch3, Ch4)
Sets t
he runt signal source.
Ext
Ext/10
Sets
external or external divided by 10 as the signal source.
Ext Probe nnX Voltage / Current
(4-
channel only)
Set this value to match the attenuation factor and the type of probe
(vo
ltage or current) that is attached to the external trigger connector. Push
the menu button to select the probe type. Use the general purpose knob
to set the attenuation factor. The default values are 1x and voltage.
Sourc
e
AC Line Sets the AC line frequency as the trigger source. This trigger source is
on
ly available when the oscilloscope is connected to AC power.
Vert
Sets the lowest-numbered displayed channel as the trigger source.
Alternating (all active channels) Sequentially uses each active channel as a trigger source, from the
l
owest-numbered active channel to the highest-numbered active channel.
(See page 96.)
P
ositive
Negative
P
olarity
Either
Sets the source signal runt pulse polarity on which to trigger.
104 TDS3000C Series Oscilloscope User Manual
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