Agilent Technologies U9072A cdma-2000

1322

Trace/Detector

Power Diff (Op1-Op2)

Calculates a power difference between the First Trace operand and the Second Trace operand and puts

the result in the destination trace.

During the sweep, the following formula is executed for each point in the trace operands, and the

corresponding point is generated for the destination trace:

DestinationTrace = 10 log(10(1/10)(FirstTrace) – 10(1/10)(SecondTrace))

The values of the trace points are assumed to be in a decibel scale, as they are internally stored.

If a point in FirstTrace is equal to maxtracevalue, the resultant point is also maxtracevalue.

Otherwise, if the result of the subtraction is less than or equal to 0, the resultant point is mintracevalue.

Power Sum (Op1+Op2)

Calculates a power sum between the First Trace operand and the Second Trace operand and puts the

result in the destination trace.

During the sweep, the following formula is executed for each point in the trace operands, and the

corresponding point is generated for the destination trace.:

DestinationTrace = 10 log(10(1/10)(FirstTrace) + 10(1/10)(SecondTrace))

The values of the trace points are assumed to be in a decibel scale, as they are internally stored.

If a point in either trace operand is equal to maxtracevalue, the resultant point is also maxtracevalue.

Key Path Trace/Detector, Math

Example :CALC:MATH TRACE1,PDIF,TRACE4,TRACE5,,

sets Trace 1 to Power Diff trace math function, and sets the First Trace

operand (for Trace 1) to Trace 4 and the Second Trace operand (for Trace 1)

to Trace 5.

Couplings Selecting a math mode other than Off for a trace (pressing the key or sending

the equivalent SCPI command) puts the trace in View (Update On and

Display On), even if that math mode was already selected.

Initial S/W Revision Prior to A.02.00