19© 2017 Infinite Electronics, Inc., All Rights Reserved.1.12.1.14 Trace Math (Optional Feature)The Trace math menu can from the currently highlighted trace. Add or subtract another displayed trace, or add or subtracta previous memory trace of the highlighted trace See Section 1.12.1.12.Note : The traces will need to be the same type1.12.2 Trace TypesDifferent trace types can be included on the same measurement channel allowing for quick comparisons on the samedisplay.Trace types available include .1.12.2.1 Return LossSee Section 1.151.12.2.2 Cable LossSee Section 1.161.12.2.3 DTFSee Section 1.181.12.2.4 SpectrumSee Section 1.191.12.2.5 TransmissionSee Section Section 1.171.12.3 Trace UnitsThe trace units available will depend on the trace type selected above.1.12.3.1 dBmDecibels with respect to a 1 mW in 50 Ohms1.12.3.2 mWmilliwatts in 50 Ohms1.12.3.3 dBdB return loss or Cable loss1.12.3.4 VSWRVoltage Standing Wave ratio1.12.3.5 MagMagnitude1.12.3.6 RealThe real component of the complex characteristic.1.12.3.7 ImagThe imaginary component of the complex characteristic.1.12.3.8 DegreesThe degrees of Phase shift.