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Source[]][:mod]:am:internal:frequency, Source[]][:mod]:am:internal:function – RIGOL DG1000Z Series User Manual

Page 131

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Chapter 2 Command System

RIGOL

DG1000Z Programming Guide

2-119

[:SOURce[]][:MOD]:AM:INTernal:FREQuency

Syntax

[:SOURce[]][:MOD]:AM:INTernal:FREQuency

{|MINimum|MAXimum}
[:SOURce[]][:MOD]:AM:INTernal:FREQuency? [MINimum|MAXimum]

Description

Set the AM modulation frequency of the specified channel.
Query the AM modulation frequency of the specified channel.

Parameter

Name

Type

Range

Default

[]

Discrete

1|2

1

Real

2mHz to 1MHz

100Hz

Explanation

 This command is only applicable to the internal modulation source

(

[:SOURce[]][:MOD]:AM:SOURce

).

 When [:SOURce[]] or [] is omitted, the system sets the related

parameters of CH1 by default.

Return Format

The query returns the AM modulation frequency in scientific notation with 7 effective

digits, for example, 1.500000E+02 (the AM modulation frequency is 150Hz).

Example

:SOUR1:AM:INT:FREQ 150 /*Set the AM modulation frequency of CH1 to

150Hz*/

:SOUR1:AM:INT:FREQ? /*Query the AM modulation frequency of CH1 and

the query returns 1.500000E+02*/

Related

Command

[:SOURce[]][:MOD]:AM:SOURce

[:SOURce[]][:MOD]:AM:INTernal:FUNCtion

Syntax

[:SOURce[]][:MOD]:AM:INTernal:FUNCtion

[:SOURce[]][:MOD]:AM:INTernal:FUNCtion?

Description

Set the AM modulation waveform of the specified channel.
Query the AM modulation waveform of the specified channel.

Parameter

Name

Type

Range

Default

[]

Discrete

1|2

1

Discrete

SINusoid|SQUare|TRIangle|

RAMP|NRAMp|NOISe|USER

SINusoid

Explanation

 This command is only applicable to the internal modulation source.

 When [:SOURce[]] or [] is omitted, the system sets the related

parameters of CH1 by default.

 SQUare: 50% duty cycle; TRIangle: 50% symmetry; RAMP: 100%

symmetry; NRAMp: 0% symmetry; USER: the arbitrary waveform selected of
the specified channel.

Return Format

The query returns SIN, SQU, TRI, RAMP, NRAMP, NOIS or USER.

Example

:SOUR1:AM:INT:FUNC SQU /*Set the AM modulation waveform of CH1 to

square*/

:SOUR1:AM:INT:FUNC? /*Query the AM modulation waveform of CH1 and

the query returns SQU*/