3 VMA Mode
3.1 Digital Demod Measurement
CPM
Allows you to configure advanced parameters for CPM modulation format.
CPM Auto
Turns modulation indices auto-detected on or off.
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:CPMindex:AUTO OFF | ON | 0 | 1
[:SENSe]:DDEMod:SEGMent1|…|6:CPMindex:AUTO?
Example
:DDEM:SEGM1:CPM:AUTO OFF
:DDEM:SEGM1:CPM:AUTO?
Couplings If the modulation format is not CPM, this control is grayed-out
Preset
OFF
State Saved Yes
Range Off|On
Backwards
Compatibility
SCPI
[:SENSe]:DDEMod:CPMindex:AUTO
CPM Index
Sets the value of the modulation indices, h1 and h2 when the CPM (FM) modulation
format is selected. The modulation indices determine the amount of phase change
for each symbol.
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:CPMindex I12I13 | I7I10 | I6I7 | I5I6 | I4I5 |
MSK | HCPM
[:SENSe]:DDEMod:SEGMent1|…|6:CPMindex?
Example
:DDEM:MAST:CPM HCPM
:DDEM:MAST:CPM?
Couplings If the modulation format is not CPM, this control is grayed-out
Preset
I4I5
State Saved Yes
Range 12/16,13/16 | 7/16,10/16 | 6/16,7/16 | 5/16,6/16 | 4/16,5/16 | 1/2(MSK) | 1/3(HCPM)
Backwards
Compatibility
SCPI
[:SENSe]:DDEMod:CPMindex
Vector Modulation Analyzer Mode User's &Programmer's Reference 354