NAB Labs All-digital AM Test Project - Part II, Co-channel Laboratory Test Results

摘要

Since 2012, NAB Labs has been conducting fieldand laboratory tests of the HD Radio all-digital AM system.The purpose of this test project has been to characterize thedigital coverage performance and interference behavior ofthe all-digital AM signal under a variety of conditions, withthe goals of better understanding the capabilities andlimitations of this signal and to develop a technical record ofthis as-yet unauthorized service. This paper, the second in aseries, focuses on the laboratory interference testing portionof the project including a summary of the co-channellaboratory test results obtained by NAB Labs.