FCC 90.265 Revised as of October 1, 2005
Goto Year:2004 |
2006
Sec. 90.265 Assignment and use of frequencies in the bands allocated for Federal
use.
(a) The following center frequencies are available for assignment to fixed
stations in the Public Safety Pool or the Industrial/Business Pool, subject
to the provisions of this section:
Hydro Channels (MHz)
------------------------------------------------------------------------
------------------------------------------------------------------------
169.4250......................... 170.2625 171.1000 406.1250
169.4375......................... 170.2750 171.1125 406.1750
169.4500......................... 170.2875 171.1250 412.6625
169.4625......................... 170.3000 171.8250 412.6750
169.4750......................... 170.3125 171.8375 412.6875
169.4875......................... 170.3250 171.8500 412.7125
169.5000......................... 171.0250 171.8625 412.7250
169.5125......................... 171.0375 171.8750 412.7375
169.5250......................... 171.0500 171.8875 412.7625
170.2250......................... 171.0625 171.9000 412.7750
170.2375......................... 171.0750 171.9125 415.1250
170.2500......................... 171.0875 171.9250 415.1750
------------------------------------------------------------------------
(1) The use of these frequencies is limited to transmitting hydrological or
meteorological data.
(2) All use of these frequencies is on a secondary basis to Federal
Government stations and the hydrological or meteorological data being
handled must be made available on request to governmental agencies.
(3) Other provisions of this part notwithstanding, an operational fixed
station operating on these frequencies shall not communicate with any
station in the mobile service unless written authorization to do so has been
obtained from the Commission.
(4) Persons who desire to operate stations on these frequencies should
communicate with the Commission for instructions concerning the procedure to
be followed in filing formal application.
(5) After May 27, 2005, for the 169â172 MHz band and January 1, 2008 for the
406â416 MHz band, channels for new operations are limited to an authorized
bandwidth not to exceed 11.25 kHz. After those dates, existing systems with
an authorized bandwidth of greater than 11.25 kHz (including those systems
that expand existing operations) may continue to operate with a bandwidth
greater than 11.25 kHz until January 1, 2013. Such operations are limited by
paragraphs (a)(6) and (a)(7) of this section.
(6) After May 27, 2005, if a licensee of a channel in the band 169â172 MHz
which uses equipment with an authorized bandwidth greater than 11.25 kHz
cannot resolve an interference complaint to the satisfaction of an impacted
Federal agency or is advised to do so by the Hydro Committee as approved by
the FCC, then the licensee must cease operation on the frequency upon
notification by the Commission.
(7) After January 1, 2008, if a licensee of a channel in the band 406.1â420
MHz which uses equipment with an authorized bandwidth greater than 11.25 kHz
cannot resolve an interference complaint to the satisfaction of an impacted
Federal agency or is advised to do so by the Hydro Committee as approved by
the FCC, then the licensee must cease operation on the frequency upon
notification by the Commission.
(8) After May 27, 2005, new assignments on the frequencies 406.125 MHz and
406.175 MHz are to be primarily for paired operations with the frequencies
415.125 MHz and 415.175 MHz, respectively and limited to an authorized
bandwidth not to exceed 11.25 kHz when paired.
(9) Existing stations may continue to use the center frequencies 169.575
MHz, 409.675 MHz, 409.725 MHz, and 412.625 MHz until January 1, 2013,
subject to the requirements of paragraphs (a)(6) and (a)(7) of this section.
(b) The following frequencies are available for wireless microphone
operations to eligibles in this part, subject to the provisions of this
paragraph:
Frequencies (MHz)
169.445
171.045
169.505
171.105
170.245
171.845
170.305
171.905
(1) The emission bandwidth shall not exceed 54 kHz.
(2) The output power shall not exceed 50 milliwatts.
(3) The frequency stability of wireless microphones shall limit the total
emission to within ħ32.5 kHz of the assigned frequency.
(4) Wireless microphone operations are unprotected from interference from
other licensed operations in the band. If any interference from wireless
microphone operation is received by any Government or non-Government
operation, the wireless microphone must cease operation on the frequency
involved. Applications are subject to Government coordination.
(c) The following center frequencies are available for assignment to
licensees engaged in forest firefighting and conservation activities,
subject to the provisions of this section:
Forest Firefighting and Conservation Channels (MHz)
------------------------------------------------------------------------
------------------------------------------------------------------------
170.425....................................... 171.425 172.225
170.475....................................... 171.475 172.275
170.575....................................... 171.575 172.375
------------------------------------------------------------------------
(1) These frequencies will be assigned on a secondary basis to any U.S.
Government station.
(2) The frequencies 170.425 MHz, 170.475 MHz, 170.575 MHz, 171.425 MHz,
171.575 MHz, 172.225 MHz, and 172.275 MHz will be assigned only to licensees
directly responsible for the prevention, detection, and suppression of
forest fires.
(3) The frequencies 171.475 MHz and 172.275 MHz will be assigned to
licensees directly responsible for the prevention, detection, and
suppression of forest fires; or to licensees engaged in forest conservation
activities for mobile relay operation only.
(4) The frequencies 170.425 MHz, 170.575 MHz, 171.475 MHz, 172.225 MHz, and
172.375 MHz will be assigned for use only in areas west of the Mississippi
River.
(5) The frequencies 170.475 MHz, 171.425 MHz, 171.575 MHz, and 172.275 MHz
will be assigned for use only in areas east of the Mississippi River.
(6) All applications for use of these frequencies must be accompanied by a
letter of concurrence by the United States Department of Agriculture.
(7) After May 27, 2005, channels for new operations are limited to an
authorized bandwidth not to exceed 11.25 kHz. Between May 27, 2005, and
January 1, 2013, existing systems with an authorized bandwidth of greater
than 11.25 kHz (including those systems that expand existing operations) may
continue to operate with a bandwidth greater than 11.25 kHz, subject to the
limitations set forth in paragraph (c)(8), of this section.
(8) After May 27, 2005, if a licensee that uses equipment with an authorized
bandwidth greater than 11.25 kHz cannot resolve an interference complaint
from an impacted Federal agency, then the licensee must cease operation on
the frequency upon notification by the Commission.
(d) The frequencies 166.250 MHz and 170.150 MHz are available for assignment
to licensees engaged in public safety activities, subject to the provisions
of this section:
(1) These frequencies are available for assignment to stations in the Public
Safety Pool, only at points within 241.4 km. (150 mi.) of New York, N.Y.;
(2) Operations on these channels is on a secondary basis to any Federal
station; and
(3) After May 27, 2005, if a licensee that uses equipment with an authorized
bandwidth greater than 11.25 kHz cannot resolve an interference complaint
from an impacted Federal agency, then the licensee must cease operation on
the frequency upon notification by the Commission.
(4) After May 27, 2005, channels for new operations are limited to an
authorized bandwidth not to exceed 11.25 kHz. Between May 27, 2005, and
January 1, 2013, existing systems with an authorized bandwidth of greater
than 11.25 kHz (including those systems that expand existing operations) may
continue to operate with a bandwidth greater than 11.25 kHz, subject to the
limitations set forth in paragraph (d)(3), of this section.
(e) The following frequencies are available for use by Medical
Radiocommunication Systems:
(1) The frequencies 150.775 MHz, 150.790 MHz, and 163.250 MHz, subject to
following provisions:
(i) After May 27, 2005, new assignments for these frequencies shall be
authorized only for the purpose of delivering or rendering medical services
to individuals (medical radiocommunication systems).
(ii) After May 27, 2005, new operations on the frequency 163.250 MHz are
limited to an authorized bandwidth not to exceed 11.25 kHz.
(iii) After January 1, 2008, new operations on the frequencies 150.775 MHz
and 150.790 MHz are limited to an authorized bandwidth not to exceed 11.25
kHz.
(iv) Existing systems with an authorized bandwidth of greater than 11.25 kHz
(including those systems that expand existing operations) may continue to
operate on a primary basis with a bandwidth greater than 11.25 kHz until
January 1, 2013. After January 1, 2013, stations that use the frequencies
150.775 MHz, 150.790 MHz, or 163.250 MHz shall be limited to an authorized
bandwidth not to exceed 11.25 kHz.
(2) The frequency 152.0075 MHz and frequencies within the bands
462.9375â463.1875 MHz and 467.9375 MHzâ468.1875 MHz, subject to the
limitations specified in Sec. 90.20.
(Secs. 4(i) and 303(r), Communications Act of 1934, as amended, Sec. Sec. 0.131 and
0.331 of the Commission's Rules and 5 U.S.C. 553 (b)(3)(B) and (d)(3))
[ 49 FR 20506 , May 15, 1984, as amended at 62 FR 18929 , Apr. 17, 1997; 70 FR 21661 , Apr. 27, 2005]
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