Boonton 4530 Peak Power Meter User Manual User Manual

Page 112

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4-38

Chapter 4

Boonton Electronics

Remote Operation

4530 Series RF Power Meter

SENSe:MBUF:POSition

Description:

Return the current acquisition position into the measurement buffer, which is the index of
the next buffer point which will be written to. This command is useful for determining
whether the measurement buffer is full. A value of zero indicates that no points have been
buffered yet, and a value of RATE indicates that the buffer is full.

Syntax:

SENSe[1|2]:MBUF:POSition?

Returns:

current index value, 0 to 4096

Valid Modes:

Modulated, CW or Pulse modes

SENSe:MBUF:COUNt

Description:

Set or return the number of measurement buffer readings which will be returned each time
the

SENSe:MBUF:DATA?

query is issued when the measurement buffer is active. 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 measurement buffer, the
array will be truncated. Setting COUNT to SIZE will return the entire measurement buffer.

Syntax:

SENSe:MBUF:COUNt <n>

Argument:

<n> = 0 to 4096

Valid Modes:

Modulated, CW or Pulse modes

SENSe:MBUF:INDEX

Description:

Set or return the array index for the first measurement buffer point to be returned next time
the

SENSe:MBUF:DATA?

query is issued. Index 0 corresponds to the first point in the

buffer, and index SIZE-1 is the last. 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 manage-
able size and read with successive

SENSe:MBUF:DATA?

queries. INDEX must be reset

to zero for each new measurement buffer that is to be dumped, whether or not the entire
buffer has been read.

Syntax:

SENSe:MBUF:INDEX <n>

Argument:

<n> = 0 to 4095

Valid Modes:

Modulated, CW or Pulse modes

SENSe:MBUF:DATA

Description:

Return a comma-delimited array of power readings corresponding to all or a portion of the
measurement buffer for the selected channel. The array will consist of COUNT buffer
points, beginning at point number INDEX. Power is returned in currently selected units for
that channel.

Syntax:

SENSe[1|2]:MBUF:DATA?

Returns:

P(index), P(index+1), P(index+2).... P(index+count)

Valid Modes:

Modulated, CW or Pulse modes,

SENSe:MBUF:SIZe

must be >0.

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