Agilent Technologies 4395A - Page 438

File
Structure
File Structure
File
Structure
of Internal
Data Arrays
File for
Binary Files
Note
Binary
and ASCII
le structures
are not
compatible.
When internal
data
arrays
are
saved
as
a
binary
le
,
the
arrays'
le
consists
of
a
le
header
at
the top
of
the
le
and
the
data
groups
following
the
le
header
.
File Header
Every internal
data
array
le
begins
with
a
le
header
.
Figure
A
-41
shows
the
header
structure
.
Figure
A
-41.
File
Header
Structure
Six
data
switches
dene
the
data
groups
that
follow
the
le
head.
Each one-byte
switch
is
either 1 or 0 (decimal value) if the applicable data group exists or not, respectively
. The data
group to be followed is in the same order of these switches
.F
or example
, when the data
switches,RAWD
ATA and D
ATA TRA
CE are 1 (
on ), while the others are
off , only the RA
W
DATA and D
ATA TRA
CE (in this order) groups will follow the header
.
Data Group
Data group of each channel begins with a header and consists of
the same structured data
segments. The number of data segments depends on the data group type as follows:
RAWDATA of the network analyzer consists of a header and four data segments per channel
as shown in Figure A-42. They will follow the le header in this order:
A-62 Basic Measurement Theory