Boonton 4540 Peak Power Meter User Manual - Manual (Page 211)

Boonton 4540 Series RF Power Meter
Remote Operation 5-77
TRACe:COUNt
Description: Set or return the number of trace points, which will be returned each time the TRACe:DATA?
query is issued. At the completion of each read, INDEX is automatically incremented by
COUNT. If COUNT is set to a number greater than the number of points remaining in the trace,
the array will be truncated. Setting COUNT to 501 (and INDEX to zero each time) will return the
entire trace array.
Syntax: TRACe[1|2]:COUNt <numeric_value>
Argument: <numeric_value> = 1 to 501
Valid Modes: All
TRACe:INDEX
Description: Set or return the array index for the first trace point to be returned next time the TRACe:DATA?
query is issued. Index 0 is the start of the trace buffer, and corresponds to the leftmost pixel on the
graph display. Index 500 is the last point, and is the rightmost pixel. Each time a block of data is
read, INDEX is automatically incremented by the COUNT value, so the full array can be split up
into blocks of manageable size and read with successive TRACe:DATA? queries. INDEX must
be reset to zero for each new trace that is to be dumped, whether or not all the points have been
read.
Syntax: TRACe[1|2]:INDEX <numeric_value>
Argument: <numeric_value> = 0 to 500
Valid Modes: All