47 CFR 73.509 - Prohibited overlap

Cite as47 CFR 73.509
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4 practice notes
  • Radio broadcasting: Radio technical rules; streamlining; 1998 biennial regulatory review,
    • United States
    • Federal Register December 20, 2000
    • December 20, 2000
    ...(dB) higher than the protected signal strength, while the second-adjacent channel interference ratio for NCE FM stations, specified in 47 CFR 73.509, and FM translator stations, specified in 47 CFR 74.1204, is 20 dB higher than the protected signal strength. Since experience has proven that......
  • Policies To Promote Rural Radio Service and To Streamline Allotment and Assignment Procedures
    • United States
    • Federal Register December 05, 2012
    • December 5, 2012
    ...(including directional patterns) and actual terrain. The service contour shall be the 60 dBmu contour, calculated as set forth in 47 CFR 73.509(c)(1). For an AM station, the signal level to be evaluated for purposes of gain and loss calculations in applications to change community of licens......
  • Policies to Promote Rural Radio Service and to Streamline Allotment and Assignment Procedures
    • United States
    • Federal Register May 13, 2009
    • May 13, 2009
    ...because the 60 dB[micro] principal community contour of an NCE FM station in the reserved band is the same as its protected contour (see 47 CFR 73.509, 73.515), these guidelines preclude the use of alternate contour prediction methods for NCE FM stations in the reserved band. The Commission......
  • Broadcast Radio Technical Rules
    • United States
    • Federal Communications Commission
    • Invalid date
    ...the word ``approximate'' with ``proximate.'' 5. NCE FM Class D second-adjacent channel interference ratio. The Commission amends 47 CFR 73.509(b), which sets out signal strength contour overlap requirements for NCE FM Class D stations, to harmonize with the more permissive standard applied ......

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