NPR Labs plans further study of HD Radio power tradeoffs

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NPR Labs will do additional research to determine how much broadcasters should increase power to increase the reach of digital HD Radio signals without unduly interfering with analog FM reception. The study, funded by CPB, would be completed in time for the NAB Radio Show in Philadelphia Sept. 23-25. NPR Labs said last fall that boosting HD Radio power tenfold, as proposed by major commercial radio groups, would have significant costs in listening quality in certain geographical areas. The earlier study found that 41 percent of pubradio stations could no longer be heard on one-third or more of the car radios they can now reach.

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