RIGOL DG1000Z Series - Manual (Page 104)

RIGOL Chapter 2 Command System
2-92 DG1000Z Programming Guide
[:SOURce[<n>]]:FREQuency:COUPle:MODE
Syntax [:SOURce[<n>]]:FREQuency:COUPle:MODE {OFFSet|RATio}
[:SOURce[<n>]]:FREQuency:COUPle:MODE?
Description Set the frequency coupling mode to frequency deviation (OFFSet) or frequency ratio
(RATio).
Query the frequency coupling mode.
Parameter Name Type Range Default
[<n>] Discrete 1|2 1
{OFFSet|RATio} Discrete OFFSet|RATio RATio
Explanation  Frequency deviation mode: the frequencies of CH1 and CH2 fulfills certain
deviation relation: F
CH2
=F
CH1
+F
Dev
(the reference source is CH1); F
CH1
=F
CH2
-F
Dev
(the reference source is CH2). Wherein, F
CH1
is the frequency of CH1, F
CH2
is the
frequency of CH2 and F
Dev
is the specified frequency deviation.
 Frequency ratio mode: the frequencies of CH1 and CH2 fulfills certain ratio
relation: F
CH2
=F
CH1
*F
Ratio
(the reference source is CH1); F
CH1
=F
CH2
/F
Ratio
(the
reference source is CH2). Wherein, F
CH1
is the frequency of CH1, F
CH2
is the
frequency of CH2 and F
Ratio
is the specified frequency ratio.
 After the frequency coupling, the instrument will adjust the frequency upper
limit or lower limit of the other channel to avoid parameter overrange when the
frequency of any of CH1 and CH2 exceeds the frequency upper limit or lower
limit of the channel.
 Please select the desired frequency coupling mode and set the corresponding
frequency deviation ( [:SOURce[<n>]]:FREQuency:COUPle:OFFSet ) or
frequency ration ( [:SOURce[<n>]]:FREQuency:COUPle:RATio ) before enabling
the frequency coupling function
( [:SOURce[<n>]]:FREQuency:COUPle[:STATe] ). You cannot set the frequency
coupling mode and the frequency deviation/ratio after the frequency coupling
function is enabled.
 You can also send the :COUPling:FREQuency:MODE command to set and query
the frequency coupling mode.
Return Format The query returns OFFSET or RATIO.
Example :FREQ:COUP:MODE OFFS /*Set the frequency coupling mode to frequency
deviation*/
:FREQ:COUP:MODE? /*Query the frequency coupling mode and the query
returns OFFSET*/
Related
Commands
:COUPling:FREQuency:MODE
[:SOURce[<n>]]:FREQuency:COUPle:OFFSet
[:SOURce[<n>]]:FREQuency:COUPle:RATio
[:SOURce[<n>]]:FREQuency:COUPle[:STATe]