PM
Subsystem
CSOURcel
:
PM
[:DEViation]?
[:DEViation] <NRf> [<angle term>]
Sets PM deviation in radians. *RST value is 1.0
RAD.
:
STATe?
:STATe
ON
I
OFF
I
1
I
0
Turns PM modulation
ON
or OFF. PM is not turned on by just setting
PM:DEViation. Turning FM modulation
ON
will not automatically turn
OFF any other types of modulation. Turning any or all modulation
types
ON
or
OFF
must be done explicitly.
If
a modulation type is
turned
ON
while another modulation type is
ON,
an execution error
-221 is generated,
and
the state of the instrument is changed. *RST
value is OFF.
:
SOURce?
:
SOURce
INTernal
1
EXTernal
[,
INTernal
I
,EXTernall
Selects PM source. *RST value
is
INTernal.
:
EXTernal
:Cowling?
:COUPling
AC
I
DC
Sets source coupling for PM. The GROund parameter defined by the
1991 SCPI Command Reference (17.10.9.2)
is
not supported. *RST
value is
DC
:
INTernal
:FREQuency?
:
FREQuency
<NRf
>
[<f req
term>]
Sets the frequency of the PM internal signal source. Legal values are
400
Hz
and
1
kHz.
*RST value is
1
kHz.
HP-IB
Programming
2-17