FCC 22.1007 Revised as of October 1, 2006
Goto Year:2005 |
2007
Sec. 22.1007 Channels for offshore radiotelephone systems.
The channels listed in this section are allocated for paired assignment to
transmitters located in the specified geographical zones that provide
offshore radiotelephone service. All channels have a bandwidth of 20 kHz and
are designated by their center frequencies in MegaHertz.
(a) Zone A—Southern Louisiana. The geographical area in Zone A is bounded as
follows:
From longitude W.87 °45' on the East to longitude W.94 °00' on the West and
from the 4.8 kilometer (3 mile) limit along the Gulf of Mexico shoreline on
the North to the limit of the Outer Continental Shelf on the South.
(1) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for voice-grade general communications:
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
488.025...................... 491.025 488.225......... 491.225
488.050...................... 491.050 488.250......... 491.250
488.075...................... 491.075 488.275......... 491.275
488.100...................... 491.100 488.300......... 491.300
488.125...................... 491.125 488.325......... 491.325
488.150...................... 491.150 488.350......... 491.350
488.175...................... 491.175 488.375......... 491.375
488.200...................... 491.200 488.400......... 491.400
------------------------------------------------------------------------
(2) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for voice-grade general communications and private
line service:
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
488.425...................... 491.425 488.575......... 491.575
488.450...................... 491.450 488.600......... 491.600
488.475...................... 491.475 488.625......... 491.625
488.500...................... 491.500 488.650......... 491.650
488.525...................... 491.525 488.675......... 491.675
488.550...................... 491.550 488.700......... 491.700
------------------------------------------------------------------------
(3) These channels may be assigned for use by relay stations in systems
where it would be impractical to provide offshore radiotelephone service
without the use of relay stations.
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
488.725...................... 491.725 488.775......... 491.775
488.750...................... 491.750 488.800......... 491.800
------------------------------------------------------------------------
(4) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for emergency communications involving protection of
life and property.
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
488.825...................... 491.825 488.875......... 491.875
488.850...................... 491.850 488.900......... 491.900
------------------------------------------------------------------------
(5) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for emergency auto alarm and voice transmission
pertaining to emergency conditions only.
------------------------------------------------------------------------
Central Subscriber
------------------------------------------------------------------------
488.950................ 491.950
------------------------------------------------------------------------
(6) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for emergency shut-off remote control telemetry,
environmental data acquisition and disseminations, or facsimile
transmissions.
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
489.000...................... 492.000 489.200......... 492.200
489.025...................... 492.025 489.225......... 492.225
489.050...................... 492.050 489.250......... 492.250
489.075...................... 492.075 489.275......... 492.275
489.100...................... 492.100 489.300......... 492.300
489.125...................... 492.125 489.325......... 492.325
489.150...................... 492.150 489.350......... 492.350
489.175...................... 492.175 489.375......... 492.375
------------------------------------------------------------------------
(7) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for private line service:
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
489.400...................... 492.400 489.725......... 492.725
489.425...................... 492.425 489.750......... 492.750
489.450...................... 492.450 489.775......... 492.775
489.475...................... 492.475 489.800......... 492.800
489.500...................... 492.500 489.825......... 492.825
489.525...................... 492.525 489.850......... 492.850
489.550...................... 492.550 489.875......... 492.875
489.575...................... 492.575 489.900......... 492.900
489.600...................... 492.600 489.925......... 492.925
489.625...................... 492.625 489.950......... 492.950
489.650...................... 492.650 489.975......... 492.975
489.675...................... 492.675 490.000......... 493.000
489.700...................... 492.700
------------------------------------------------------------------------
(8) Interstitial channels. Interstitial channels are those with center
frequencies offset by ±12.5 kHz from the listed center frequencies. The FCC
may assign interstitial channels to offshore stations in Zone A subject to
the following conditions:
(i) Offshore stations transmitting on interstitial channels must be located
east of W.92 ° longitude.
(ii) Operations on interstitial channels are considered to be secondary to
operations on channels with the listed center frequencies.
(iii) Offshore stations operating on interstitial channels must be used only
for voice grade general communications or to provide for private line
service.
Note to paragraph (a) of Sec. 22.1007: These channels are contained in UHF TV
Channel 17.
(b) Zone B—Southern Louisiana—Texas. (1) The geographical area in Zone B is
bounded as follows:
From longitude W.87 °45' on the East to longitude W.95 °00' on the West and
from the 4.8 kilometer (3 mile) limit along the Gulf of Mexico shoreline on
the North to the limit of the Outer Continental Shelf on the South.
(2) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for voice-grade general communications and private
line service:
------------------------------------------------------------------------
Central Subscriber Central Subscriber
------------------------------------------------------------------------
485.025...................... 482.025 486.025......... 483.025
485.050...................... 482.050 486.050......... 483.050
485.075...................... 482.075 486.075......... 483.075
485.100...................... 482.100 486.100......... 483.100
485.125...................... 482.125 486.125......... 483.125
485.150...................... 482.150 485.150......... 483.150
485.175...................... 482.175 486.175......... 483.175
485.200...................... 482.200 486.200......... 483.200
485.225...................... 482.225 486.225......... 483.225
485.250...................... 482.250 486.250......... 483.250
485.275...................... 482.275 486.275......... 483.275
485.300...................... 482.300 486.300......... 483.300
485.325...................... 482.325 486.325......... 483.325
485.350...................... 482.350 486.350......... 483.350
485.375...................... 482.375 486.375......... 483.375
485.400...................... 482.400 486.400......... 483.400
485.425...................... 482.425 486.425......... 483.425
485.450...................... 482.450 486.450......... 483.450
485.475...................... 482.475 486.475......... 483.475
485.500...................... 482.500 486.500......... 483.500
485.525...................... 482.525 486.525......... 483.525
485.550...................... 482.550 484.550......... 483.550
485.575...................... 482.575 486.575......... 483.575
485.600...................... 482.600 486.600......... 483.600
485.625...................... 482.625 486.625......... 483.625
485.650...................... 482.650 486.650......... 483.650
485.675...................... 482.675 486.675......... 483.675
485.700...................... 482.700 486.700......... 483.700
485.725...................... 482.725 486.725......... 483.725
485.750...................... 482.750 486.750......... 483.750
485.775...................... 482.775 486.775......... 483.775
485.800...................... 482.800 486.800......... 483.800
485.825...................... 482.825 486.825......... 483.825
485.850...................... 482.850 486.850......... 483.850
485.875...................... 482.875 486.875......... 483.875
485.900...................... 482.900 486.900......... 483.900
485.925...................... 482.925 486.925......... 483.925
485.950...................... 482.950 486.950......... 483.950
485.975...................... 482.975 486.975......... 483.975
486.000...................... 483.000 487.050......... 480.050
------------------------------------------------------------------------
Note to paragraph (b) of Sec. 22.1007: These channels are contained in UHF TV
Channel 16.
(c) Zone C—Southern Texas. The geographical area in Zone C is bounded as
follows:
Longitude W.94 °00' on the East, the 4.8 kilometer (3 mile) limit on the
North and West, a 282 kilometer (175 mile) radius from the reference point
at Linares, N.L., Mexico on the Southwest, latitude N.26 °00' on the South,
and the limits of the outer continental shelf on the Southeast.
(1) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for emergency auto alarm and voice transmission
pertaining to emergency conditions only.
------------------------------------------------------------------------
Central Subscriber
------------------------------------------------------------------------
476.950................ 479.950
------------------------------------------------------------------------
(2) These channels may be assigned for use by offshore central (base/fixed)
or subscriber stations (fixed, temporary fixed, surface and/or airborne
mobile) as indicated, for voice-grade general communications and private
line service:
476.025 479.025
476.050 479.050
476.075 479.075
476.100 479.100
476.125 479.125
476.150 479.150
476.175 479.175
476.200 479.200
476.225 479.225
476.250 479.250
476.275 479.275
476.300 479.300
476.325 479.325
476.350 479.350
476.375 479.375
476.400 479.400
476.425 479.425
476.450 479.450
476.475 479.475
476.500 479.500
476.525 479.525
476.550 479.550
476.575 479.575
476.600 479.600
476.625 479.625
476.650 479.650
476.675 479.675
476.700 479.700
476.725 479.725
476.750 479.750
476.775 479.775
476.800 479.800
476.825 479.825
476.850 479.850
476.875 479.875
476.900 479.900
477.000 480.000
477.025 480.025
477.075 480.075
477.100 480.100
477.125 480.125
477.150 480.150
477.175 480.175
477.200 480.200
477.225 480.225
477.250 480.250
477.275 480.275
477.300 480.300
477.325 480.325
477.350 480.350
477.375 480.375
477.400 480.400
477.425 480.425
477.450 480.450
477.475 480.475
477.500 480.500
477.525 480.525
477.550 480.550
477.575 480.575
477.600 480.600
477.625 480.625
477.650 480.650
477.675 480.675
477.700 480.700
477.725 480.725
477.750 480.750
477.775 480.775
477.800 480.800
477.825 480.825
477.850 480.850
477.875 480.875
477.900 480.900
477.925 480.925
477.950 480.950
477.975 480.975
[ 59 FR 59507 , Nov. 17, 1994; 60 FR 9891 , Feb. 22, 1995]
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