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HX270SPage 32
1. 156.050 MHz and 156.175 MHz are available for port operations and commercial
communications purposes when used only within the U.S. Coast Guard desig-
nated Vessel Traffic Services (VTS) area of New Orleans, on the lower Missis-
sippi River from the various pass entrances in the Gulf of Mexico to Devil’s Swamp
Light at River Mile 242.4 above head of passes near Baton Rouge.
2. 156.250 MHz is available for port operations communications use only within the
U.S. Coast Guard designated VTS radio protection areas of New Orleans and
Houston described in Sec. 80.383. 156.250 MHz is available for intership port
operations communications used only within the area of Los Angeles and Long
Beach harbors, within a 25- nautical mile radius of Point Fermin, California.
3. 156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast
Guard designated port areas only for VTS communications and in the Great Lakes
available primarily for communications relating to the movement of ships in sec-
tors designated by the St. Lawrence Seaway Development Corporation or the
U.S. Coast Guard. The use of these frequencies outside VTS and ship move-
ment sector protected areas is permitted provided they cause no interference to
VTS and ship movement communications in thier respective designated sectors.
4. Use of 156.875 MHz is limited to communications with pilots regarding the move-
ment and docking of ships. Normal output power must not exceed 1 watt.
5. 156.375 MHz and 156.650 MHz are available primarily for intership navigational
communications. These frequencies are available between coast and ship on a
secondary basis when used on or in the vicinity of locks or drawbridges. Normal
output power must not exceed 1 watt. Maximum output power must not exceed
10 watts for coast stations or 25 watts for ship stations.
6. On the Great Lakes, in addition to bridge-to-bridge communications, 156.650
MHz is available for vessel control purposes in established vessel traffic sys-
tems. 156.650 MHz is not available for use in the Mississippi River from South
Pass Lighted Whistle Buoy “2” and Southwest Pass entrance Midchannel Lighted
Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge. Addition-
ally it is not available for use in the Mississippi River-Gulf Outlet, the Mississippi
River-Gulf Outlet Canal, and the Inner Harbor Navigational Canal, except to aid
the transition from these areas.
7. Use of 156.375 MHz is available for navigational communications only in the
Mississippi River from South Pass Lighted Whistle Buoy “2” and Southwest Pass
entrance Mid-channel Lighted Whistle Buoy to mile 242.4 above head of Passes
near Baton Rouge, and in addition over the full length of the Mississippi River-
Gulf Outlet Canal from entrance to its junction with the Inner Harbor Navigation
Canal, and over the ull length of the Inner Harbor Navigation Canal from its junc-
tion with the Mississippi River to its entry to Lake Pontchartrain at the New Seabrook
vehicular bridge.