ARB
(cant)
3.
Connect
your
oscilloscope as
shown
in Figure 3. If
your
oscilloscope Z
Axis
input
requires the opposite
polarity
than
that
provided
by
the
3314A,
remember
that
this
signal is helpful
but
not
required.
To
view
the
trigger
signal in
this
exercise, connect
the
3314A
SYNC to Channel B.
4. Position
the
Channel A
trace
one division above
the
center graticule.
5. Position
the
Channel B trace
towards
the
bottom
of
the
display.
6. Refer
to
Waveform
51
for
the
3314A
settings. Press
the
ARB key on
the
3314A
.
You are
now
in ARB register O. The ARB mode redefines the SWEEPgroup key
func-
tions
as indicated by
the
green labels beneath each key. The
Modify
knob changes
the
values in
the
3314A
display. The
"001"
indicates
Vector
1 is the
current
vec-
tor.
The 331;4-A SYNC
frequency
is
now
2.5kHz.
Press AMPTD and set
the
ARB maximum amplitude to
10Vp
-p.
Press PHASE and set
the
ARB phase to -90
0
•
7.
You are ready
to
build
Waveform
51.
Two
vectors currently exist in the
waveform,
Vector
1 (V HGT = 0, V LEN=1) and
Vector
2 (Return
to
Start Vector). You
will
modify
Vector
1, then
insert
and modify vectors
after
it
to
build
the
waveform.
To understand
the
effects
of
each keystroke and
modification,
observe
the
scope
display as you press the keys and turn
the
knob.
Press V HGT and set
the
height
of Vector 1 to
1454.
Press INS
to
·insert a
new
Vector
2. V HGT is still
the
active function.
Set
Vector
2 V HGT to
581.
Each
vector's
V LEN retains
the
default
setting
of
1.
Press INS to insert
Vector
3 and set
its
V HGT
to
214.
Insert and set
the
V HGT
of
Vectors 4, 5, and 6 as listed in
the
waveform
table.
After
inserting
Vector
6 and verifying its V
HGT=O,
press V LEN and
set
it
to 5.
Half
of
the
waveform
is complete.
Insert and
modify
the
V HGT and V LEN (if necessary)
of
the
remaining
vectors
in
the
table.
The
waveform
is complete
after
setting Vector
12
V HGT and V LEN.
44
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