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HP 5335A - Page 43

HP 5335A
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Operation
and
Programming
3-137.
GATE
TIME
3-138.
The
GATE
TIME
mode
provides
an
indication
of
the
length
of
the
gate
time,
displayed
to
three
significant
digits.
When
EXT
ARM
ENABLE
is
on,
gate
time
resolution
to
100
ns
is
displayed.
The
gate
time
is
controlled
(except
in
MIN)
by
the
GATE
ADJ
control.
NOTE
As
the
gate
is
synchronized
to
the
input
signal,
the
actual
gate
time
may
be
different
from
the
displayed
gate.
3-139.
When
in
a
TIME
domain
function
mode
(e.g.,T!ME
A~*B,
PULSE
A),theGATETiME
mode
provides
an
indication
of
the
amount
of
stop
delay
time
selected.
This
time
is
set
by
the
GATE
ADj
control.
When
in
a
TIME
domain
function,
with
the
GATE
MODE
in
NORM
or
FAST,
the
T.l.
DELAY
indicator
will
be
lighted.
3-140.
Pressing
GATE
TIME
does
not
affect
the
function
set-up
memory
of
the
operating
mode.
Press
the
operating
mode
function
key
or
reset
to
resume
measurements.
3-141.
TRIG
LVL
3-142.
The
TRIG
LVL
mode
displays
both
the
Channel
A
and
B
trigger
levels.
The
grouping
on
the
left
is
Level
A
and
the
right
is
Level
B.
If
the
operating
function
mode,
prior
to
the
TRIG
LVL,
was
RISE/FALL
or
SLEW,
the
levels
displayed
will
be
the
10%
and
90%
points
of
the
input
signal.
For
PHASE
A
rel
B,
the
levels
will
be
the
50%
points.
Pressing
TRIG
LVL
does
not
affect
the
function
set-up
memory
of
the
operating
mode.
Press
the
operating
mode
function
key
or
reset
to
resume
measurements.
3-143.
When
outputting
the
Channel
A
and
B
Trigger
Levels,
via
the
HP-IB,
two
complete
numbers
are
sent,
prefixed
with
the
letters
A
and
B.
3-144.
VOLTS
3-145.
The
VOLTS
mode
requires
the
option
020
DVM
input
module.
The
DVM
is
fully
floating
and
autoranging.
A
unique
feature
is
that
there
is
no
need
for
predetermined
gate
times.
This
means
that,
like
frequency,
you
may
gate
time
to
most
any
setting
desired.
Also,
this
means
that
you
can
arm
both
the
start
and
the
stop
of
a
voltage
measurement.
3-146.
To
measure
the
voltage
of
a
signal
at
a
specified
point,
use
external
arming.
Set
the
start
arm
switch
to
positive
and
the
stop
arm
switch
to
negative.
Position
the
arming
signal
to
allow
for
the
step
response
time
of
the
voltmeter
(ti).
For
environments
with
50
or
60
Hz
noise
problems,
gate
time
which
are
multiples
of
100
ms
will
reduce
error
in
the
measurements.
SIGNAL
i
i
t
i
i
j
ARMING
SIGNAL
VOLTAGE
MEASURED
-
"*1
3-27
Model
5335A

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