Response
and
Isolation
Error-Correction
for
Transmission
Measurements
This
procedure
is
intended
for
measurements
that
have
a
measurement
range of
greater than
90
dB
.
1.
Press
4
PRESET
5
.
2.
Select
the
type
of
measurement
you
want
to
make
.
If
you
want
to
make
a
transmission
measurement
in the
forward direction
(S
21
),
press:
4
MEAS
5
N
N
N
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
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Trans:
FWD
S21
(B/R)
If
you
want
to
make
a
transmission
measurement
in
the reverse
direction (S
12
),
press:
4
MEAS
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Trans:
REV
S12
(A/R)
3.
Set
any
other
measurement
parameters
that you
want for
the device
measurement: power
,
number
of
points
,
IF
bandwidth.
4.
T
o
access
the measurement
correction menus
,
press:
4
CAL
5
5.
If
your
calibration
kit
is
diîerent
than
the
kit
speciîed
under
the
N
N
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
CAL
KIT
[
]
softkey
,
press:
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
CAL
KIT
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
N
SELECT
CAL
KIT
(select
your
type
of
kit)
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
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
CALIBRATE
MENU
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
RESPONSE
&
ISOL'N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
RESPONSE
7.
Make a
\thru" connection
between
the
points
where
you
will
connect
your
device
under
test.
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.
8.
T
o
measure
the
standard,
when the
displayed trace
has settled,
press:
N
NN
N
N
N
N
N
N
N
N
N
N
N
THRU
The analyzer displays
WAIT - MEASURING CAL STANDARD
during the standard measurement.
The analyzer underlines the
NNNNNNNNNNNNNN
THRU
softkey after it measures the calibration standard, and
computes the error coeîcients
.
9. Connect impedance-matched loads to PORT 1 and PORT 2, as shown in Figure 5-5. Include
the adapters that you would include for your device measurement.
Optimizing Measurement Results 5-15
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