d.
Move
the
CURSOR
to
the
ALC
eld,
and
N
NNNNNNN
ON
and
N
NNNNNNNNNN
OFF
will
be
displayed.
e.
Press
N
NNNNNNN
ON
to
set
the
test
signal
voltage
level
to
be
constant.
4.
Connect
the
test
xture
to
the
4285A.
The
16047C
test
xture
is
used
for
this
measurement.
Connect
the
16047C
to
the
UNKNOWN
terminals
of
the
4285A,
as
shown
in
Figure
3-10.
Figure
3-10.
Connecting
the
16047C
5.
P
erform
OPEN/SHORT
correction.
OPEN/SHORT
correction
is
required
to
compensate
the
16047C's
residuals
impedance
and
strays
admittance
.
a.
Leave
the
16047C
in
an
OPEN
condition
as
shown
in
Figure
3-10.
b.
Press
4
MEAS
SETUP
5
and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
CORRECTION
.
The
CORRECTION
page
will
now
be
displayed.
c.
Move
the
CURSOR
to
the
OPEN
eld.
NNNNNNNN
ON
,
NNNNNNNNNNN
OFF
,
and
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEAS
OPEN
will
be
displayed.
d.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNN
MEAS
OPEN
to
perform
the
OPEN
correction
data
measurement.
W
ait
until
the
message
OPEN
measurement
completed.
will
be
displayed
on
the
system
message
line
.
It
will
take
approximetory
45
seconds
.
e.
Press
NNNNNNNN
ON
to
set
the
OPEN
correction
function
to
ON.
f.
Connect
a
shorting
bar
to
the
16047C
to
set
up
the
SHORT
condition
as
shown
in
Figure
3-11 .
Basic
Measurement
Examples
3-11
