CFR > Title 47 - Telecommunication > CHAPTER I—FEDERAL COMMUNICATIONS COMMISSION > SUBCHAPTER D—SAFETY AND SPECIAL RADIO SERVICES (Parts 80–101) > PART 90—PRIVATE LAND MOBILE RADIO SERVICES > SUBPART K—Standards for Special Frequencies or Frequency Bands (§90.251 to §90.283) > 90.273—Availability and use of frequencies in the 421-430 MHz band.

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
Code of Federal Regulations 378
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
Code of Federal Regulations 379
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
Code of Federal Regulations 380
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