3 VMA Mode
3.1 Digital Demod Measurement
X Offset
Offsets the limit trace by some specified frequency (for frequency-based limit lines)
or a time (for time-based limit lines).
Remote
Command
:CALCulate:DDEMod:LLINe[1]|2|…|6:OFFSet:X <real>
:CALCulate:DDEMod:LLINe[1]|2|…|6:OFFSet:X?
Example
:CALC:DDEM:LLIN:OFFS:X -50.0
Sets the X axis offset to -50 MHz if the limit’s X Axis Unit is Hz
:CALC:DDEM:LLIN:OFFS:UPD
will apply the X axis offset to all points in the limit line, then reset the X axis offset to zero
Couplings The unit of X Offset depends on the selected X Axis Unit
Preset 0.0
State Saved Saved in instrument state, survives Preset
Min -9.9E+37
Max 9.9E+37
Y Offset
Offsets all segments in the limit line by some specified amplitude.
Remote Command
:CALCulate:DDEMod:LLINe[1]|2|…|6:OFFSet:Y <real>
:CALCulate:DDEMod:LLINe[1]|2|…|6:OFFSet:Y?
Example
:CALC:DDEM:LLIN:OFFS:Y 10.0
Sets the Y axis offset to -10 dB if the limit’s Y Axis Unit is dBm or dB
:CALC:DDEM:LLIN:OFFS:Y?
Preset 0.0
State Saved Saved in instrument state
Min -9.9E+37
Max 9.9E+37
Apply Offset to Limit Table
Adds the X offset and Y offset to each point in the limit table, then resets the X offset
and Y offset value to zero. This has no effect on the position of the limit trace. For
example, if the Y offset is 1 dB, 1 dB will be added to each Y value in the limit table.
The offset value will then be reset to zero.
381 Vector Modulation Analyzer Mode User's &Programmer's Reference