iBiquity, NAB Fastroad Release Asymmetrical IBOC Sideband Lab Tests Results

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Washington, DC - Dec 19, 2011 - NAB Fastroad released the report "HD Radio Asymmetric Sideband Laboratory Test Report," which describes the results of laboratory testing of HD Radio asymmetric sideband technology for FM-band digital radio. This work was undertaken by iBiquity Digital, and was funded by NAB Fastroad and iBiquity.

The report characterizes improvements in digital signal-to-noise ratio (SNR) that can be realized with the use of asymmetric (unequal) IBOC transmission power. This new transmission method affords broadcasters the ability to mitigate potential first-adjacent digital-to-analog interference by allowing independent adjustment of upper and lower IBOC digital sideband levels, maximizing the digital signal coverage area as a result.

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