Skip, looking at the flight track log on FlightAware, the data points listed are flagged for their source. Your flights are recorded with a mix of both ADS-B (therefore SkyEcho is working) and MLAT triangulation (therefore mode S is working). All appears good. Just remember that these web-based sites (Flight Radar24 and Flight Aware) rely on a network of ground based private receivers without complete coverage, and the Sky Echo transmission distance is short and very susceptible to position shadow from your own aircraft, hence some gaps and errors in the recorded logs.