Getting
Started
Manual
918221
RevA
37
DDS
•
When
a
Force
Trigger
command
is
applied,
the
frequencies
(or
phases)
inserted
in
the
Modulation
Editor
are
generated
one
after
the
other
for
a
time
interval
specified
on
the
Durations
field.
•
The
last
frequency
(or
phase)
is
repeated
until
a
Force
Stop
command
is
received.
•
The
sequence
can
be
interrupted
at
any
time
by
a
Force
Stop
command.
Continuous
A
RBITRARY
•
When
the
Force
Trigger
command
is
given,
the
carrier
signal,
see
Advanced
Waveform
Editing
(on
page
56),
is
modulated
with
the
edited
modulating
signal
samples.
•
Once
the
last
sample
of
the
modulating
signal
is
reached,
ArbStudio
returns
to
the
first
modulating
signal
sample
until
a
Stop
command
is
applied.
DDS
•
When
a
Force
Trigger
command
is
applied,
the
frequencies
(or
phases)
inserted
in
the
Modulation
Editor
are
generated
one
after
the
other
in
a
continuous
mode.
•
After
the
generation
of
the
last
frequency
(or
phase),
ArbStudio
returns
to
the
first
frequency
(or
phase).
•
The
sequence
can
be
interrupted
at
any
time
by
a
Force
Stop
command.
Burst (DDS Only)
DDS
•
After
a
Force
Trigger
command
is
received,
the
frequency
(or
phase)
defined
in
the
Modulation
Editor
buffer
is
generated
until
another
Force
Trigger
is
received.
•
At
the
next
Force
Trigger,
the
period
of
the
waveform
is
completed
with
the
previous
frequency
(or
phase)
entry
before
the
second
stage
frequency
(or
phase)
is
generated.
•
Once
the
last
frequency
(or
phase)
is
exhausted,
the
waveform's
frequency
(or
phase)
resumes
using
the
first
value
entry
in
the
Modulation
Editor
list.
•
The
generation
can
be
interrupted
at
any
time
by
a
Force
Stop
command.
•
The
Duration
Time
associated
to
any
frequency
(or
phase)
is
ignored
when
using
Burst/DDS
mode.
