Chapter 5 5-5
Data Processing Chain
Fast Data Transfer Commands
Fast Data Transfer Commands
The analyzer has four distinct fast data transfer commands. These commands circumvent
the internal “byte handler” routine and output trace dumps as block data. In other words,
the analyzer outputs the entire array without allowing any process swapping to occur.
FORM4, ASCII data transfer times are not affected by these routines. However, there are
speed improvements with binary data formats. The following is a description of the four
fast data transfer commands:
• OUTPDATF outputs the error corrected data from the active channel in the current
output format. This data may be input to the analyzer using the INPUDATA command.
• OUTPFORF outputs the formatted display trace array from the active channel in the
current output format. Only the first number in each of the OUTPFORM data pairs is
actually transferred for the display formats LOG MAG, PHASE, group DELAY, LIN
MAG, SWR, REAL and IMAGinary. Because the data array does not contain the second
value for these display formats, the INPUFORM command may not be used to re-input the
data back into the analyzer. The second value may not be significant in some display
formats (see Table 4-1 on page 4-5) thus reducing the number of bytes transferred.
• OUTPMEMF outputs the memory trace from the active channel. The data is in
real/imaginary pairs, and, as such, may be input back into the memory trace using
INPUDATA or INPUFORM followed by the DATI command.
• OUTPRAF outputs the raw measurement data trace. The data may be input back into the
memory trace using the INPURAW command.
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