R&S®SML / R&S®SMV03 SOURce:PM
1090.3123.12 E-6 6.25
SOURce:PM Subsystem
This subsystem contains the commands to control the phase modulation and to set the parameters of
the modulation signal.
Command Parameter Default
Unit
Remark
[:SOURce]
:PM
[:DEViation]
:EXTernal
:COUPling
:INTernal
:FREQuency
:SOURce
:STATe
:BANDwidth
0 to 10
AC | DC
0.1 Hz to 10 MHz
EXTernal | INTernal | TTONe
ON | OFF
STANdard | WIDE
RAD
Hz
[:SOURce]:PM [:DEViation] 0 to 10 RAD
The command specifies the phase variation caused by the M. The maximum possible deviation
depends on the selected frequency (see Data Sheet).
Example: :SOUR:PM:DEV 2 RAD *RST value is 1 RAD
[:SOURce]:PM:EXTernal
The commands to set the external M input are under this node. The settings under EXTernal
for modulations AM, FM and M are independent of each other.
[:SOURce]:PM:EXTernal:COUPling AC | DC
The command selects the type of coupling for the external M input.
AC The d.c. voltage content is separated from the modulation signal.
DC The modulation signal is not altered.
Example: :SOUR:PM:EXT:COUP AC *RST value is AC
[:SOURce]:PM:INTernal
The settings for the internal LF generator are effected under this node. Here the same hardware
is set for AM, FM/M and SOURce2.
This means that, e.g., the following commands are coupled to each other and have the same
effect:
:SOUR:AM:INT:FREQ
:SOUR:FM:INT:FREQ
:SOUR:PM:INT:FREQ
:SOUR2:FREQ:CW
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