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Digital Power Increase

No longer will analog FM stations be protected within their 60 dBu F (50,50) service contours.

The big concern I have is the negative effect of greater interference that the higher-power IBOC will cause to listeners who are receiving only 55 to 60 dBU signal analog FM stations that are first adjacent to digital stations.

No longer will analog FM stations be protected within their 60 dBu F (50,50) service contours. This could be especially negative to donor-supported radio stations that depend on donations from listeners who listen to stations’ signals between 55 and 65 dBu strength.

Michael K. Brinks
Director of Signal Development & FCC Compliance
Family Life Broadcasting
Tucson, Ariz.

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