Code of Federal Regulations (alpha)

CFR /  Title 47  /  Part 90  /  Sec. 90.273 Availability and use of frequencies in the 421-430 MHz

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 *............................ IBSingle 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.................. 425252.2" North latitude.

785220.1" West longitude.Cleveland, OH................ 412951.2" North latitude.

814149.5" West longitude.Detroit, MI.................. 421948.1" North latitude.

830256.7" 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]