Based on methodology developed in NPR Labs' Digital Radio Coverage and Interference Analysis Project (DRCIA), we have prepared detailed maps showing analog FM stereo coverage and interference under three conditions:

  • Analog-only interference
  • IBOC interference at one percent power
  • IBOC interference at ten percent power

To view the images please select a station below.
PLEASE NOTE: These maps are presented as a reference and were accurate in 2008. Since then, the data upon which the maps are based may have changed, rendering the maps obsolete.

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