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444 Agilent InfiniiVision 3000 X-Series Oscilloscopes Programmer's Guide

20 :MEASure Commands

:MEASure:SOURce

(see page 1138)

Command Syntax

:MEASure:SOURce <source1>[,<source2>]

<source1>,<source2> ::= {<digital channels> | CHANnel<n> | FUNCtion

| MATH | WMEMory<r> | EXTernal}

<digital channels> ::= DIGital<d> for the MSO models

<n> ::= 1 to (# of analog channels) in NR1 format

<r> ::= 1-2 in NR1 format

<d> ::= 0 to (# digital channels - 1) in NR1 format

The :MEASure:SOURce command sets the default sources for

measurements. The specified sources are used as the sources for the

MEASure subsystem commands if the sources are not explicitly set with

the command.

If a source is specified for any measurement, the current source is

changed to this new value.

If :MARKer:MODE is set to OFF or MANual, setting :MEASure:SOURce to

CHANnel<n>, FUNCtion, or MATH will also set :MARKer:X1Y1source to

source1 and :MARKer:X2Y2source to source2.

EXTernal is only a valid source for the counter measurement (and

<source1>).

Query Syntax

:MEASure:SOURce?

The :MEASure:SOURce? query returns the current source selections. If

source2 is not specified, the query returns "NONE" for source2. If all

channels are off, the query returns "NONE,NONE". Source2 only applies to

:MEASure:DELay and :MEASure:PHASe measurements.

Return Format

| EXT | NONE}

See Also: • "Introduction to :MEASure Commands" on page 406

• ":MARKer:MODE" on page 381

• ":MARKer:X1Y1source" on page 383

• ":MARKer:X2Y2source" on page 385

• ":MEASure:DELay" on page 416

NOTE

MATH is an alias for FUNCtion. The query will return FUNC if the source is FUNCtion or

MATH.

Agilent Technologies InfiniiVision 3000 X-Series Programmer's Guide

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