TRIG
~
DLY
SOURCE
Buttons and
Indicators
VERT
CH
1,
CH
2,
CH
3,
or
CH
4
LINE
(A·
Trigger
Only)
COUPLING
Buttons and
Indicators
Controls, Connectors,
and
Indicators
Only with the available CIT,
and
with
~t
or
1/~t
active, the B.Trigger Slope
and
Level for the
~
delay
can
be
set separately from those for the REFerence
delay. If both TRIG AFT DL Y and TRIG
~
DL Y
indicators are on, the B-Trigger Slope and Level are
common for the
two
delays. TRIG
~
DL Y should
normally
be
used with VERT trigger source for
B Trigger. Pressing the lower trigger Mode button
alternates between TRIG AFT DL Y
and
TRIG
~
DL Y
and the controls are alternately directed to the
two
triggers.
Select the trigger-signal source for either A Sweep or B
Sweep.
The sweep triggers
on
the displayed channel when
only one channel is selected. If multiple vertical
displays
are
selected, both the trigger Mode and the
Chop/ Alt selection affect the triggering source. With
Alt vertical mode and with A-Trigger modes other
than Auto Lvi, each
displayed channel
in
turn
provides the triggering
signal and the respective
LED
indicator for each displayed channel is illuminated.
With Auto Lvi trigger mode or with Chop
vertical
mode, the lowest-numbered channel, or ADD if it is
displayed, is the triggering-signal source. The Source
indicators show the source of the triggering signal
in
any case. When
ADD
is
selected, both the
CH
1
and
the
CH
2 indicators
are
illuminated.
A triggering signal is obtained from the
corresponding
vertical channel.
A triggering signal
is
obtained from a sample
of
the
ac power-source waveform. This trigger source is
useful when vertical input signals are related (multiple
or submultiple) to the frequency
of
the ac power-
source voltage.
Select
the method of coupling the triggering signal to the
trigger generator.
DC
All frequency components of the signal are coupled
to the trigger. This coupling is preferred for most
signals.
2465A/2455A/2445A Operators
5-21
To Next Page
Loading...
Need help?
General
