8.
Press
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
LINE/MATCH
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
LN/MATCH1
TRMLOAD
to
access the
Loads menu.
When the
displayed
trace
settles
,
press
the
softkey
corresponding
to the
load used.
If a
sliding load
is
used,
press
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
N
SLIDING
to
access
the
Sliding
Load
menu.
P
osition
the
slide and
press
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
SLIDE
IS
SET
.
9.
When
all
the appropriate
load measurements
are complete
, the
load data
is measured
and
the
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
LN/MATCH1
TRMLOAD
softkey
label
is
underlined.
10.
Connect
the
load
to
PORT
2
and press
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
LN/MATCH2
TRMLOAD
.
11. Repeat
the
previous
TRM
load
measurement
steps
for
PORT
2.
12. After
the measurement
is
complete
,
press:
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
DONE
LINE/MATCH
13.
T
o
measure
the
\ISOLA
TION"
class
,
press:
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
ISOLATION
Y
ou
could
choose
not
to
perform
the
isolation
measurement
by
pressing
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
OMIT ISOLATION
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
DONE TRL/LRM
.
Note
Y
ou
should
perform
the
isolation
measurement
when
the
highest
dynamic
range
is
desired.
T
o
perform
the
best
isolation
measurements
,
you should
reduce
the
system
bandwidth,
and/or
activate
the
averaging
function.
A
poorly
measured
isolation
class
can
actually
degrade
the
overall
measurement
performance
.
If
you
are
in
doubt
of
the
isolation measurement
quality
,
you should
omit
the
isolation
portion
of
this
procedure
.
14.
Y
ou
may
repeat
any
of
the
steps
above
.
There is
no requirement
to
go
in
the
order
of
steps
.
When
the analyzer
detects that
you
have
made
all
the
necessary
measurements
,
the
message
line
will
show
PRESS
'DONE'
IF
FINISHED
WITH
CAL.
Press
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
DONE
TRL/LRM
.
The
message
COMPUTING
CAL
COEFFICIENTS
will
appear
,
indicating that
the analyzer
is
performing
the
numerical
calculations
of
error
coeîcients
.
Note
Y
ou
can
save
or
store
the
measurement correction
to use
for later
measurements
.
Refer
to
the
\Printing,
Plotting,
and
Saving
Measurement
Results" chapter for procedures
.
15. Connect the device under test. The device S-parameters are now being measured.
Note
When making measurements using the same port with uncoupled channels
,the
power level for each channel must fall within the
same power range setting of
that single port. An error message will be displayed if
you enter two power
levels that do not fall within the same power range
.
Optimizing Measurement Results 5-25
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