Frequency Response
and Isolation
Error-Corrections
removes
frequency
response
of
the
test
setup
removes
isolation
in
transmission
measurements
removes
directivity
in
reection
measurements
Y
ou
can
make
a
response
and
isolation
correction
for
the
following measurements
.
reection
measurements
transmission
measurements
combined
reection
and
transmission
measurements
Response
and
Isolation
Error-Correction
for
Reection
Measurements
Although
you
can
perform
a
response
and
isolation
correction
for
reection
measurements
,
Hewlett-P
ackard
recommends
that
you
perform
an
S
11
one-port
error-correction;
it
is
more
accurate
and
just
as
convenient.
1.
Press
4
PRESET
5
.
2.
Select
the
type
of
measurement
you
want
to
make
.
If you
want to
make
a
reection
measurement
on
PORT
1
(in
the
forward
direction,
S
11
),
leave the
instrument default
setting.
If
you
want
to
make
a
reection
measurement
on
PORT
2
(in
the
reverse
direction,
S
22
),
press:
4
MEAS
5
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
Refl: REV
S22
(B/R)
3.
Set
any
other
measurement
parameters
that you
want
for
the
device
measurement:
power
,
sweep
type
,
number
of
points
,IF
bandwidth.
4.
T
o
access
the
measurement
correction
menus,
press:
4
CAL
5
5.
If
your
calibration
kit
is
dierent
than
the
kit
specied
under
the
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
CAL
KIT
[
]
softkey
,
press:
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
CAL
KIT
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
SELECT
CAL
KIT
(select
your
type
of
kit)
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
RETURN
If
your
type
of
calibration
kit
is
not
listed
in the
displayed menu,
refer to
the \Modifying
Calibration
Kit Standards"
procedure,
located later
in this
chapter
.
6.
T
o
select
a
response
and
isolation
correction,
press:
N
NNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNN
CALIBRATE MENU
NNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNN
RESPONSE & ISOL'N
NNNNNNNNNNNN
NNNNNNNNNNNNNN
RESPONSE
7. Connect the short or open calibration
standard to the port you selected for the test port
(PORT 1 for S
11
or PORT 2 for S
22
).
Note
Include any
adapters that you will have in the device measurement. That is
,
connect the standard device to the particular connector where you will connect
your device under test.
Optimizing Measurement Results 5-13