Sec. 95.47  Considerations in large urban areas.

    (a) No fixed station may be at any point within a large urban area.
    (b) A control station at a point within a large urban area must 
have:
    (1) A directional antenna (at least 15 decibel front-to-back ratio); 
and
    (2) No more transmitter power than determined by a control station 
power test (a test to determine the appropriate transmitter power (see 
appendix A)).
    (c) Where these rules use the term large urban area, it means a 
circular region extending out 121 kilometers (75 miles) in all 
directions around the geographic center of certain cities.
    (d) The large urban areas and their geographic centers are shown in 
appendix B.
    (e) Control stations and fixed stations authorized before October 
16, 1983 located beyond 121 kilometers (75 miles) of the geographic 
center of urbanized areas of 200,000 or more population as defined in 
the U.S. Census of Population, 1960, Vol. 1, table 23, page 50, are not 
subject to the restrictions of this rule section.

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