Chapter 3 Interpreting Test ResultsModem emulate results64 HST-3000 ADSL2 Testing User’s GuideEvent log This category provides a running log of significant modemevents and errors.Dr. DSL results This category provides the results of the optional Dr. DSLdiagnostic test. This function is only available on InfineonSIMs.Background testresultsTable 13 describes the Background test results.Table 13 Dr. DSL Background test resultsResult DefinitionFaultsMissing Microfilter Was there a missing microfilter? Yes,No, Maybe, UnknownMetallic Fault Was there a short? Yes, No, Maybe,UnknownSevere Impulse Noise Was there severe impulse noisefound? Yes, No, Maybe, UnknownNoisy Power Supply Is there a harmonic disturber that islikely caused by a CRT or power sup-ply? Yes, No, Maybe, UnknownRate Reduction EstimatesCause The likely cause of rate loss.Up Rate lost The amount of upstream rate loss thatis occurring due to the interference.Down Rate lost The amount of downstream rate lossthat is occurring due to the interfer-ence.Topology EstimateSignal Path Main path or bridged tapLength Lenght in feet of the main signal path.