Boonton 4540 Peak Power Meter User Manual - Manual (Page 210)

Boonton 4540 Series RF Power Meter
Remote Operation 5-76
5.6.16 TRACe Data Array Commands
The TRACe group of commands is used to control the output of acquired measurement arrays, which appear as a display
trace when the power meter is in Graph mode. The TRACe commands allow outputting a channel’s entire internal display
trace (501 measurement points) as one large array, or selecting and returning the array in smaller portions. These commands
are useful for capturing the displayed waveform and importing it into a database on the host.
TRACe[:MINimum|:MAXimum|[:AVERage]]:DATA[:NEXT]?
Description: Return a delimited array of power or voltage pixel average values corresponding to all or a portion
of the graph mode display trace for the selected channel. The Average trace (default) is the data
shown when envelope display mode is inactive. The Minimum and Maximum traces are the data
for the bottom and top of the envelope mode trace, respectively. Note that graph mode does not
have to be active to read the trace, and the pixel values are returned without regard to display
vertical scale and center settings. The array will consist of COUNT trace pixel values, beginning
at pixel number INDEX, up to the last pixel of the trace (index = 500), and will be returned in
channel units. The selected channel must be ―ON‖ to return measurement data.
Syntax: TRACe[1|2][:MINimum|:MAXimum|[:AVERage]]:DATA[:NEXT]?
Returns: P(index), P(index+1), P(index+2).... P(index+count) or
V(index), V(index+1), V(index+2).... V(index+count)
Valid Modes: All
TRACe[:MINimum|:MAXimum|[:AVERage]]:DUMP?
Description: Returns IEEE488.2 binary block data (also knows as ―definite length format‖) for the entire graph
mode display trace for the selected channel. The Average trace (default) is the data shown when
envelope display mode is inactive. The Minimum and Maximum traces are the data for the
bottom and top of the envelope mode trace, respectively. Note that graph mode does not have to
be active to read the trace, and the pixel values are returned without regard to display vertical scale
and center settings. The array will consist of all 501 trace pixel values, and will be returned in
channel units. The selected channel must be ―ON‖ to return measurement data.
Syntax: TRACe[1|2][:MINimum|:MAXimum|[:AVERage]]:DUMP?
Returns: Trace data as binary block of 501 IEEE-754 single-precision (32 bit) floating point values.
Valid Modes: All
TRACe:DELImiter
Description: Set or return the character used as a delimiter for the array of trace points returned by the
TRACe:DATA? query.
Syntax: TRACe:DELImiter <numeric_value>
Argument: <character data> = {COMMA, CR, LF, SPACE}
Valid Modes: All