Instructions

RIGOL Chapter 2 Command System
2-48 DSG800 Programming Guide
[:SOURce]:PM:EXT:IMP
Syntax [:SOURce]:PM:EXT:IMP 50|600|100k
[:SOURce]:PM:EXT:IMP?
Description Set the impedance of ØM external modulation.
Query the impedance of ØM external modulation.
Parameter
Name Type Range Default
50|600|100k Discrete 50|600|100k 100k
Explanation  50: set the impedance of ØM external modulation to "50ohm".
 600: set the impedance of ØM external modulation to "600ohm".
 100k: set the impedance of ØM external modulation to "100kohm".
 When the modulation source of ØM is set to "Int", this command is invalid.
Return Format
The query returns 50, 600 or 100k.
Example :PM:EXT:IMP 600
:PM:EXT:IMP?
Related
Command
[:SOURce]:PM:SOURce
[:SOURce]:PM:FREQuency
Syntax [:SOURce]:PM:FREQuency <value>
[:SOURce]:PM:FREQuency?
Description Set the modulation frequency of ØM.
Query the modulation frequency of ØM.
Parameter
Name
Type
Range
Default
<value> Real
10Hz to 100kHz (Sine)/10Hz to 20kHz
(Square)
10kHz
Explanation  When <value> is set in "Number" form, the default unit is Hz. Besides, <value>
can also be set in "Number + Unit" form; for example, 20kHz.
 After the modulation frequency is set, you can rotate the knob to modify the
modulation frequency at the current step. At this point, you can query or set the
current step using the
[:SOURce]:PM:FREQuency:STEP[:INCRement]
command.
 This command is invalid when the ØM modulation source is set to "Ext".
Return Format The query returns the ØM modulation frequency. For example, 20.00000kHz.
Example
:PM:FREQ 20kHz
:PM:FREQ?
Related
Commands
[:SOURce]:PM:FREQuency:STEP[:INCRement]
[:SOURce]:PM:SOURce