Goto Section: 90.269 | 90.275 | Table of Contents

FCC 90.273
Revised as of October 26, 2020
Goto Year:2020 | 2022
  §  90.273   Availability and use of frequencies in the 421-430 MHz band.

   The frequency bands 422.1875-425.4875 MHz and 427.1875-429.9875 MHz are
   available for use in the Detroit, Michigan and Cleveland, Ohio areas.
   The bands 423.8125-425.4875 MHz and 428.8125-429.9875 MHz are available
   for use in the Buffalo, New York area. Sections 90.273 through 90.281
   address the specific rules applicable to these bands. Use of these
   bands is also subject to the general technical standards and
   application procedures contained in other subparts of part 90. The
   technical standards applicable in this band are the same as those
   contained in subpart I of part 90 for the 450-470 MHz band. Private
   land mobile use of these frequencies is subject to accepting any
   interference from Federal Government radiolocation operations.

   (a) The following tables list frequencies available for assignment in
   the Public Safety and Industrial/Business Pools as indicated. In the
   tables, the Public Safety Pool frequencies are denoted as “PS” and the
   Industrial/Business Pool frequencies are denoted as “IB.” The
   frequencies 422.19375 MHz through 424.99375 MHz are paired with
   frequencies 427.19375 MHz through 429.99375 MHz, respectively. Only the
   lower half of each frequency pair, available for base station
   operation, is listed in the tables. Corresponding mobile and control
   station frequencies are 5 MHz higher than the base station frequency.
   The frequencies 425.000 through 425.48125 are unpaired and are
   available for either single frequency dispatch or paging operations.

   Table 1—Channels Available in Detroit and Cleveland Areas Only
    Frequency (MHz) Pool in which assigned
   Paired channels:
   422.19375*       IB
   422.200          IB
   422.20625*       IB
   422.21250        IB
   422.21875*       IB
   422.225          IB
   422.23125*       IB
   422.23750        IB
   422.24375*       IB
   422.250          IB
   422.25625*       IB
   422.26250        IB
   422.26875*       IB
   422.275          IB
   422.28125*       IB
   422.28750        IB
   422.29375*       IB
   422.300          IB
   422.30625*       IB
   422.31250        IB
   422.31875*       IB
   422.325          IB
   422.33125*       IB
   422.33750        IB
   422.34375*       IB
   422.350          IB
   422.35625*       IB
   422.36250        IB
   422.36875*       IB
   422.375          IB
   422.38125*       IB
   422.38750        IB
   422.39375*       IB
   422.400          IB
   422.40625*       IB
   422.41250        IB
   422.41875*       IB
   422.425          IB
   422.43125*       IB
   422.43750        IB
   422.44375*       IB
   422.450          IB
   422.45625*       IB
   422.46250        IB
   422.46875*       IB
   422.475          IB
   422.48125*       IB
   422.48750        IB
   422.49375*       IB
   422.500          IB
   422.50625*       IB
   422.51250        IB
   422.51875*       IB
   422.525          IB
   422.53125*       IB
   422.53750        IB
   422.54375*       IB
   422.550          IB
   422.55625*       IB
   422.56250        IB
   422.56875*       IB
   422.575          IB
   422.58125*       IB
   422.58750        IB
   422.59375*       IB
   422.600          IB
   422.60625*       IB
   422.61250        IB
   422.61875*       IB
   422.625          IB
   422.63125*       IB
   422.63750        IB
   422.64375*       IB
   422.650          IB
   422.65625*       IB
   422.66250        IB
   422.66875*       IB
   422.675          IB
   422.68125*       IB
   422.68750        IB
   422.69375*       IB
   422.700          IB
   422.70625*       IB
   422.71250        IB
   422.71875*       IB
   422.725          IB
   422.73125*       IB
   422.73750        IB
   422.74375*       IB
   422.750          IB
   422.75625*       IB
   422.76250        IB
   422.76875*       IB
   422.775          IB
   422.78125*       IB
   422.78750        IB
   422.79375*       IB
   422.800          IB
   422.80625*       IB
   422.81250        IB
   422.81875*       IB
   422.825          IB
   422.83125*       IB
   422.83750        IB
   422.84375*       IB
   422.850          IB
   422.85625*       IB
   422.86250        IB
   422.86875*       IB
   422.875          IB
   422.88125*       IB
   422.88750        IB
   422.89375*       IB
   422.900          IB
   422.90625*       IB
   422.91250        IB
   422.91875*       IB
   422.925          IB
   422.93125*       IB
   422.93750        IB
   422.94375*       IB
   422.950          IB
   422.95625*       IB
   422.96250        IB
   422.96875*       IB
   422.975          IB
   422.98125*       IB
   422.98750        IB
   422.99375*       IB
   423.000          PS
   423.00625*       PS
   423.01250        PS
   423.01875*       PS
   423.025          PS
   423.03125*       PS
   423.03750        PS
   423.04375*       PS
   423.050          PS
   423.05625*       PS
   423.06250        PS
   423.06875*       PS
   423.075          PS
   423.08125*       PS
   423.08750        PS
   423.09375*       PS
   423.100          PS
   423.10625*       PS
   423.11250        PS
   423.11875*       PS
   423.125          PS
   423.13125*       PS
   423.13750        PS
   423.14375*       PS
   423.150          PS
   423.15625*       PS
   423.16250        PS
   423.16875*       PS
   423.175          PS
   423.18125*       PS
   423.18750        PS
   423.19375*       PS
   423.200          PS
   423.20625*       PS
   423.21250        PS
   423.21875*       PS
   423.225          PS
   423.23125*       PS
   423.23750        PS
   423.24375*       PS
   423.250          PS
   423.25625*       PS
   423.26250        PS
   423.26875*       PS
   423.275          PS
   423.28125*       PS
   423.28750        PS
   423.29375*       PS
   423.300          PS
   423.30625*       PS
   423.31250        PS
   423.31875*       PS
   423.325          PS
   423.33125*       PS
   423.33750        PS
   423.34375*       PS
   423.350          PS
   423.35625*       PS
   423.36250        PS
   423.36875*       PS
   423.375          PS
   423.38125*       PS
   423.38750        PS
   423.39375*       PS
   423.400          PS
   423.40625*       PS
   423.41250        PS
   423.41875*       PS
   423.425          PS
   423.43125*       PS
   423.43750        PS
   423.44375*       PS
   423.450          PS
   423.45625*       PS
   423.46250        PS
   423.46875*       PS
   423.475          PS
   423.48125*       PS
   423.48750        PS
   423.49375*       PS
   423.500          PS
   423.50625*       PS
   423.51250        PS
   423.51875*       PS
   423.525          PS
   423.53125*       PS
   423.53750        PS
   423.54375*       PS
   423.550          PS
   423.55625*       PS
   423.56250        PS
   423.56875*       PS
   423.575          PS
   423.58125*       PS
   423.58750        PS
   423.59375*       PS
   423.600          PS
   423.60625*       PS
   423.61250        PS
   423.61875*       PS
   423.625          PS
   423.63125*       PS
   423.63750        PS
   423.64375*       PS
   423.650          PS
   423.65625*       PS
   423.66250        PS
   423.66875*       PS
   423.675          PS
   423.68125*       PS
   423.68750        PS
   423.69375*       PS
   423.700          PS
   423.70625*       PS
   423.71250        PS
   423.71875*       PS
   423.725          PS
   423.73125*       PS
   423.73750        PS
   423.74375*       PS
   423.750          PS
   423.75625*       PS
   423.76250        PS
   423.76875*       PS
   423.775          PS
   423.78125*       PS
   423.78750        PS
   423.79375*       PS
   423.800          PS
   423.80625*       PS

   *This frequency will be assigned with an authorized bandwidth not to
   exceed 6 kHz.

   Table 2—Channels Available in Buffalo, Detroit and Cleveland Areas
    Frequency (MHz) Pool in which assigned
   Paired channels:
   423.81875*       PS
   423.825          PS
   423.83125*       PS
   423.83750        PS
   423.84375*       PS
   423.850          PS
   423.85625*       PS
   423.86250        PS
   423.86875*       PS
   423.875          PS
   423.88125*       PS
   423.88750        PS
   423.89375*       PS
   423.900          PS
   423.90625*       PS
   423.91250        PS
   423.91875*       PS
   423.925          PS
   423.93125*       PS
   423.93750        PS
   423.94375*       PS
   423.950          PS
   423.95625*       PS
   423.96250        PS
   423.96875*       PS
   423.975          PS
   423.98125*       PS
   423.98750        PS
   423.99375*       PS
   424.000          PS
   424.00625*       PS
   424.01250        PS
   424.01875*       PS
   424.025          PS
   424.03125*       PS
   424.03750        PS
   424.04375*       PS
   424.050          PS
   424.05625*       PS
   424.06250        PS
   424.06875*       PS
   424.075          PS
   424.08125*       PS
   424.08750        PS
   424.09375*       PS
   424.100          PS
   424.10625*       PS
   424.11250        PS
   424.11875*       PS
   424.125          PS
   424.13125*       PS
   424.13750        PS
   424.14375*       PS
   424.150          PS
   424.15625*       PS
   424.16250        PS
   424.16875*       PS
   424.175          PS
   424.18125*       PS
   424.18750        PS
   424.19375*       PS
   424.200          PS
   424.20625*       PS
   424.21250        PS
   424.21875*       PS
   424.225          PS
   424.23125*       PS
   424.23750        PS
   424.24375*       PS
   424.250          PS
   424.25625*       PS
   424.26250        PS
   424.26875*       PS
   424.275          PS
   424.28125*       PS
   424.28750        PS
   424.29375*       PS
   424.300          PS
   424.30625*       PS
   424.31250        PS
   424.31875*       PS
   424.325          PS
   424.33125*       PS
   424.33750        PS
   424.34375*       PS
   424.350          PS
   424.35625*       PS
   424.36250        PS
   424.36875*       PS
   424.375          PS
   424.38125*       PS
   424.38750        PS
   424.39375*       PS
   424.400          IB
   424.40625*       IB
   424.41250        IB
   424.41875*       IB
   424.425          IB
   424.43125*       IB
   424.43750        IB
   424.44375*       IB
   424.450          IB
   424.45625*       IB
   424.46250        IB
   424.46875*       IB
   424.475          IB
   424.48125*       IB
   424.48750        IB
   424.49375*       IB
   424.500          IB
   424.50625*       IB
   424.51250        IB
   424.51875*       IB
   424.525          IB
   424.53125*       IB
   424.53750        IB
   424.54375*       IB
   424.550          IB
   424.55625*       IB
   424.56250        IB
   424.56875*       IB
   424.575          IB
   424.58125*       IB
   424.58750        IB
   424.59375*       IB
   424.600          IB
   424.60625*       IB
   424.61250        IB
   424.61875*       IB
   424.625          IB
   424.63125*       IB
   424.63750        IB
   424.64375*       IB
   424.650          IB
   424.65625*       IB
   424.66250        IB
   424.66875*       IB
   424.675          IB
   424.68125*       IB
   424.68750        IB
   424.69375*       IB
   424.700          IB
   424.70625*       IB
   424.71250        IB
   424.71875*       IB
   424.725          IB
   424.73125*       IB
   424.73750        IB
   424.74375*       IB
   424.750          IB
   424.75625*       IB
   424.76250        IB
   424.76875*       IB
   424.775          IB
   424.78125*       IB
   424.78750        IB
   424.79375*       IB
   424.800          IB
   424.80625*       IB
   424.81250        IB
   424.81875*       IB
   424.825          IB
   424.83125*       IB
   424.83750        IB
   424.84375*       IB
   424.850          IB
   424.85625*       IB
   424.86250        IB
   424.86875*       IB
   424.875          IB
   424.88125*       IB
   424.88750        IB
   424.89375*       IB
   424.900          IB
   424.90625*       IB
   424.91250        IB
   424.91875*       IB
   424.925          IB
   424.93125*       IB
   424.93750        IB
   424.94375*       IB
   424.950          IB
   424.95625*       IB
   424.96250        IB
   424.96875*       IB
   424.975          IB
   424.98125*       IB
   424.98750        IB
   424.99375*       IB
   Single channels:
   425.000          IB
   425.00625*       IB
   425.01250        IB
   425.01875*       IB
   425.025          IB
   425.03125*       IB
   425.03750        IB
   425.04375*       IB
   425.050          IB
   425.05625*       IB
   425.06250        IB
   425.06875*       IB
   425.075          IB
   425.08125*       IB
   425.08750        IB
   425.09375*       IB
   425.100          IB
   425.10625*       IB
   425.11250        IB
   425.11875*       IB
   425.125          IB
   425.13125*       IB
   425.13750        IB
   425.14375*       IB
   425.150          IB
   425.15625*       IB
   425.16250        IB
   425.16875*       IB
   425.175          IB
   425.18125*       IB
   425.18750        IB
   425.19375*       IB
   425.200          IB
   425.20625*       IB
   425.21250        IB
   425.21875*       IB
   425.225          IB
   425.23125*       IB
   425.23750        IB
   425.24375*       IB
   425.250          PS
   425.25625*       PS
   425.26250        PS
   425.26875*       PS
   425.275          PS
   425.28125*       PS
   425.28750        PS
   425.29375*       PS
   425.300          PS
   425.30625*       PS
   425.31250        PS
   425.31875*       PS
   425.325          PS
   425.33125*       PS
   425.33750        PS
   425.34375*       PS
   425.350          PS
   425.35625*       PS
   425.36250        PS
   425.36875*       PS
   425.375          PS
   425.38125*       PS
   425.38750        PS
   425.39375*       PS
   425.400          PS
   425.40625*       PS
   425.41250        PS
   425.41875*       PS
   425.425          PS
   425.43125*       PS
   425.43750        PS
   425.44375*       PS
   425.450          PS
   425.45625*       PS
   425.46250        PS
   425.46875*       PS
   425.475          PS
   425.48125*       PS

   *This frequency will be assigned with an authorized bandwidth not to
   exceed 6 kHz.

   (b) [Reserved]

   (c) Base or control stations shall be located within 48 km (30 miles)
   of the center of Buffalo or 80 km (50 miles) of the center of Detroit.
   In Cleveland, base or control stations will be allowed at locations
   north of line A that are within 48 km (30 miles) of the city center. In
   addition, low power (2 watts or less) base stations may locate within
   80 km (50 miles) of the center of Buffalo. The following coordinates
   shall be used for the centers of these areas (coordinates are
   referenced to North American Datum 1983 (NAD83)):
   Buffalo, NY 42°52′52.2″ North latitude.
   78°52′20.1″ West longitude.
   Cleveland, OH 41°29′51.2″ North latitude.
   81°41′49.5″ West longitude.
   Detroit, MI 42°19′48.1″ North latitude.
   83°02′56.7″ West longitude.

   (d) Mobile operation shall be confined to within 80 km (50 miles) of
   the centers of Detroit, Cleveland, or Buffalo.

   [ 52 FR 6156 , Mar. 2, 1987, as amended at  54 FR 38681 , Sept. 20, 1989;
    58 FR 31476 , June 3, 1993;  58 FR 44957 , Aug. 25, 1993;  60 FR 37269 ,
   July 19, 1995;  61 FR 6576 , Feb. 21, 1996;  62 FR 18929 , Apr. 17, 1997;
    63 FR 68965 , Dec. 14, 1998]

   


Goto Section: 90.269 | 90.275

Goto Year: 2020 | 2022
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