Instructions

RIGOL Chapter 2 Command System
2-16 DG2000 Programming Guide
:COUPling[<n>]:PHASe:RATio
Syntax
:COUPling[<n>]:PHASe:RATio {<value>|MINimum|MAXimum}
:COUPling[<n>]:PHASe:RATio?
Description
Sets the phase ratio in the phase coupling of the specified channel.
Queries the phase ratio in the phase coupling of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
<value>
Real
0.01 to 100
1
Remarks
 When [<n>] is omitted, the commands set and query the related parameters of CH1 by default.
 Select the desired phase coupling mode (
:COUPling[<n>]:PHASe:MODE) and set the corresponding
phase deviation or phase ratio (
:COUPling[<n>]:PHASe:RATio) before enabling the phase coupling
function (
:COUPling[<n>]:PHASe[:STATe]). You cannot set the phase coupling mode and phase
deviation/ratio after the phase coupling function is enabled.
 When the phase coupling function is disabled, if the current phase coupling mode is phase ratio,
sending this command can set the phase ratio; if the current phase coupling mode is phase deviation,
sending this command can set the phase coupling mode to phase ratio and set the phase ratio.
Return Format
The query returns the phase ratio in scientific notation. The returned value contains 7 effective digits, for
example, 1.120000E+00 (the phase ratio is 1.12).
Example
:COUP1:PHAS:RAT 1.12 /*Sets the phase ratio in the phase coupling of CH1 to 1.12.*/
:COUP1:PHAS:RAT? /*Queries the phase ratio in the phase coupling of CH1 and the query returns
1.120000E+00.*/
:COUPling[<n>]:PHASe[:STATe]
Syntax
:COUPling[<n>]:PHASe[:STATe] {ON|1|OFF|0}
:COUPling[<n>]:PHASe[:STATe]?
Description
Enables or disables the phase coupling function of the specified channel.
Queries the on/off status of the phase coupling function of the specified channel.
Parameter
Name
Type
Range
Default
[<n>]
Discrete
1|2
1
{ON|1|OFF|0}
Bool
ON|1|OFF|0
OFF
Remarks
 When [<n>] is omitted, the commands set and query the related parameters of CH1 by default.
 After the phase coupling function is enabled, CH1 and CH2 take each other as the reference source.
When the phase of one channel (this channel is taken as the reference source) is modified, the phase
of the other channel is automatically modified accordingly and always keeps the specified phase
deviation or ratio with that of the reference channel.
 Select the desired phase coupling mode (
:COUPling[<n>]:PHASe:MODE) and set the corresponding