3 VMA Mode
3.5 Channel Power Measurement
Inactive traces that are also being displayed (traces in View) are displayed at half
intensity. Traces in View display across the entire X-Axis of the instrument. Their
horizontal placement does not change, even if X-Axis settings subsequently are
changed, although Y-Axis settings do affect the vertical placement of data.
When a trace becomes active (Update=ON), the trace is cleared, the average count
is reset, and a new sweep is initiated.
Note that putting a trace into Display=OFF and/or Update=OFF does not restart the
sweep and does not restart Averaging or Hold functions for any traces.
3.5.10.3 Math
Lets you turn on and configure Trace Math functions.
Math Function
Trace Math functions perform mathematical operations between traces and, in
some cases, user-specified offsets. When in a Trace Math function, the indicated
function is performed during the sweep with the math function used in place of a
detector. The trace operands for the math function are set using the "Operand 1 /
Operand 2" on page 1751 controls.
–
See "How trace math is processed" on page 924
Remote Command For option details, see "Trace Math Options" on page 922
For Swept SA Measurement (in SA Mode):
:CALCulate:MATH <trace_num>, PDIFference | PSUM | LOFFset | LDIFference |
OFF, <trace_num>, <trace_num>, <real>,<real>
:CALCulate:MATH? <trace_num>
where <trace_num> is any one of:
TRACE1|…|TRACE6
For all other measurements:
:CALCulate:<meas>:MATH <trace_num>, PDIFference | PSUM | LOFFset |
LDIFference | OFF, <trace_num>, <trace_num>, <real>,<real>
:CALCulate[:<meas>]:MATH? <trace_num>
where:
<meas> is the identifier for the current measurement, and
<trace_num> is any one of:
TRACe1|TRACe2|TRACe3
Note that the format of the TRACe<n> parameter differs from that for the Swept SA Measurement
Example
:CALC:MATH TRACE3,PDIF,TRACE1,TRACE2,0,0
Vector Modulation Analyzer Mode User's &Programmer's Reference 920
To Next Page
Loading...
Need help?
General
