Trace Subsystem - Anritsu LMR Master S412E Programming Manual

An integrated, handheld multi-function land mobile radio test tool

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18-6 :TRACe Subsystem

This subsystem contains commands related to the transfer of trace data to and from the

:TRACe[:DATA]?

Title: Trace Data Transfer

Description: This command transfers data from the controlling program to the

Related Command: :FORMat:DATA

instrument. The query form transfers trace data from the instrument to

the controller. Data is transferred to the instrument enclosed in

parentheses as (<header><block>) and from the instrument as

<header><block>.

The ASCII header specifies the number of data bytes. It looks like #AX,

where A is the number of digits in X and X is the number of bytes in the

<block>. The format of the block data in the query form is specified by

:FORMat:DATA. The block data in the command form is always sent in

ASCII format.

To acquire the data from the trace in the instrument, send

:TRACe[:DATA]? A 551 point trace is returned as #42204<block data>.

<block> data could be in either INTeger,32 or REAL,32 format. In both

cases, there is 4 bytes per data point. So, 4 bytes per point * 551 data

points gives 2204 bytes in <block> data. This example assumes that

:FORMat:DATA INTeger,32 or :FORMat:DATA REAL,32 has been sent

to the instrument before the query command is sent.

The query command will return a #0 if data is invalid for the active

PN: 10580-00319 Rev. N

AM/FM/PM Commands