Agilent Technologies 4395A, Manual Change

Page: 438 / 575

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 dene 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 , RA W D A T A and D A T A TRA CE are 1 (on ), while the others are off , only the RA W
D A T A and D A T A 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:
RA W D A T A 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