Rigol DS1204B Dokumentacja Pobierz pdf (Strona 57)

Command Systems RIGOL

Programming Guide for DS1000B Series

2-45

Example:

:TRIG:ALT:VIDEO:MODE ALLLINES,SOURB Set the sync mode as all lines.

:TRIG:ALT:VIDEO:MODE? SOURB Return ALL LINES.

13. :TRIGger:ALTernation:VIDEO:LINE

Command Format:

:TRIGger:ALTernation:VIDEO:LINE <value>[,<source>]

:TRIGger:ALTernation:VIDEO:LINE? [<source>]

Function:

The command sets the number of sync specified line. In NTSC standard, the

<value> range is 1~525; in PAL/SECAN standard, the <value> range is 1~625.

The <source> may be SOURceA or SOURceB, and the source A and B are

varying with the current alternation channel.

Returned Format:

The query returns the number of specified line.

Example:

:TRIG:ALT:VIDEO:LINE 100, SOURB Set the specified line number as 100.

:TRIG:ALT:VIDEO:LINE? SOURB Return 100.

14. :TRIGger:ALTernation:COUPling

Command Format:

:TRIGger:ALTernation:COUPling {DC|AC|LF}[,<source>]

:TRIGger:ALTernation:COUPling? [<source>]

Function:

The command sets the coupling mode.

DC: Allow all signals pass;

AC: Reject DC signals and attenuate AC signals below 10Hz.

LF: Reject DC and attenuate low frequency signals below 8kHz.

The <source> may be SOURceA or SOURceB, and the source A and B are

varying with the current alternation channel.

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Rigol DS1204B Dokumentacja Strona 57