4
Reading
Measurement
Data
This
chapter
describes
how
to
read
measurement
data
over
the
GPIB
.
Measurement
data
can
be
read
out
of
the
analyzer
in
the
following
ways:
1.
Data
can
be
read
o
the
trace
selectively
using
the
markers
.
The
present
value
of
the
marker
(real-imaginary
data
and
sweep
parameter)
is
retrieved.
F
or
additional
information
on
the
marker
functions
,
see
the
Function
R
eference.
2.
The
entire
trace
(or
data
for
a
specied
number
of
points)
can
be
read
out
in
the
following
ways:
Data
arrays
|
In
regard
to
the
data
processing
ow
,
the
following
data
arrays
are
available
.
RA
W
D
A
T
A
ARRA
YS
CALIBRA
TION
COEFFICIENT
ARRA
YS
D
A
T
A
ARRA
YS
MEMORY
ARRA
YS
D
A
T
A
TRA
CE
ARRA
YS
MEMORY
TRA
CE
ARRA
YS
F
or
details
about
the
data
processing
ow
of
the
analyzer
,
see
Chapter
12
of
Function
R
eference
manual.
Data
format
|
The
analyzer
provides
four
data
transfer
formats
.
FORM2
IEEE
32
bit
oating
point
format
FORM3
IEEE
64
bit
oating
point
format
FORM4
ASCII
format
FORM5
MS-DOS
R
personal
computer
format
Depending
on
the
format,
the
data
transfer
speed
and
the
number
of
digits
are
changed.
Generally
,
binary
data
transfer
(FORM2,
FORM3,
or
FORM5)
is
faster
than
ASCII
(FORM4).
F
or
details
on
data
transfer
format,
see
the
GPIB
Command
R
eference
manual.
Reading
Measurement
Data
4-1