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Difference between revisions of "United States Coast Guard"

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== UHF Land Mobile [LMR] Channels ==
 
== UHF Land Mobile [LMR] Channels ==

Revision as of 21:52, 27 June 2013

The USCG are heavy users of the Marine VHF band; Channel 16 is reserved for distress, safety and calling, while channel 22A is utilized for special warnings, Marine Safety and other announcements. Other frequencies utilized vary from sector to sector.

Air Operations

New nationwide United States Coast Guard frequencies, as of January 1, 2005, are listed below. The frequencies were changed due to the mandate to vacate 380-400 MHz so that the spectrum could be used for military trunked radio systems.

Frequency  Type  Alpha Tag  Description  Mode  Tag 
345.00000  BM  CG AirOpsPri Operations Primary  AM  Federal 
237.90000  BM  CG AirOpsSec Operations Secondary  AM  Federal 
326.15000  CG A-G Pri Air-to-Ground Primary  AM  Federal 
379.05000  CG A-G Sec Air-to-Ground Secondary  AM  Federal 

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Marine VHF Channels

Reserved for Coast Guard use only

157.0500	CH 21A
157.1000	CH 22A
157.1500	CH 23A
157.0750	CH 81A
157.1250	CH 82A
157.1750	CH 83A

VHF Land Mobile [LMR] Channels

As listed in the Monitoring Times May 2008 issue
Channels can/have been identified as CG-## / CG-1## / NET-## or NET-1## [Varies by Code Plug Revision]
NAC is 293 for all channels in P25 Mode

Freq Channel Details
139.9750 CG 101
140.4750 CG 102
140.7250 CG 103
141.6125 CG 104
150.7250 CG 105
141.5500 CG 106
150.3000 CG 107
162.0500 CG 108 Sector Boston, MA
162.1250 CG 109
162.2500 CG 110 Sector Northern New England; Sta Morro Bay, CA
162.3250 CG 111 Sector Mobile, AL; Miami Beach and Key West, FL; New York, NY; Baltimore, MD; Virginia Beach, VA; Coos Bay and Winchester Bay, OR
163.0500 CG 112 Sector New Orleans, LA; Sector Long Island, NY; Key West, FL
163.1375 CG 113 Sector Southeast New England, Sector Corpus Christi, TX, Milwaukee, WI
164.3000 CG 114 Sta Manasquan Inlet, NJ; Coos Bay and Winchester Bay, OR
164.3125 CG 115 Sta Indian River Inlet, DE
164.5500 CG 116
164.5625 CG 117
164.9000 CG 118 Sta Pt Allerton, MA
164.9125 CG 119
165.2625 CG 120
165.3125 CG 121 Miami, FL; Ft. Lauderdale, FL; Sector Houston-Galveston, TX; Philadelphia, PA; Coos Bay, Winchester Bay, and Florence, OR
165.3250 CG 122 Port Canaveral, FL
165.3375 CG 123
166.1875 CG 124 Sector San Francisco, Sta Rio Vista, CA
166.1875 CG 124 Sector San Francisco, Sta Rio Vista, CA
167.9000 CG 125 Sector Sault Ste Marie, MI
168.8625 CG 126
171.2375 CG 127 Sta Cape Cod Canal, MA
172.3125 CG 128 Repeater in Boston, MA of CG-113, also Multiple Repeaters in Oregon of CG 121

VHF Great Lakes Area Channels

Freq Channel Details
167.1125 AG 101 Toldeo OH
167.6250 ? Detroit MI, Saginaw River Essexville MI

UHF Land Mobile [LMR] Channels

As reported in the Monitoring Times Fedcom Blogs
Channels can/have been identified as CG-4## or NET-4## [Varies by Code Plug Revision]
NAC is 293 for all channels in P25 Mode

Freq Channel Details
410.3750 CG-401
411.7875 CG-402 South-East Florida
412.9250 CG-407 Sector Detroit, MI
412.9500 CG-408
412.9750 CG-409 Sector Jacksonville, FL / San Francisco, CA / Baltimore MD / Delaware Bay - Air Ops
413.0000 CG-410 Charleston/Savannah GA - Air Ops, Delaware Bay
413.0250 CG-411 Sector Houston-Galveston; North Bend, OR - Air Ops
416.2250 CG-421? Mississippi / Gulf Coast
416.5500 CG 422?
417.0000 CG 423?

HF Operations

Operationally, the US Coast Guard divides the US into 2 separate areas. LANTAREA consists of USCG Districts 1, 5, 7, 8 and 9. PACAREA includes the western Districts, 11, 13, 14 and 17. HF communications, as well as a number of other missions are the responsibility of the two "CAMS." USCG CAMSLANT is the largest of the 2 CAMS with approx 178 active duty, reserve and auxiliary personnel. Located on the campus of Naval Security Group, Northwest in Chesapeake, VA and its remote transmitter site, NMN is located in the old town of Pungo, VA now part of Virginia Beach, VA. CAMSLANT covers Sea Areas 3 and 4 from Brownsville, TX to the Maine/Canadian border. CAMSLANT has 3 additional subordinate commands, each with a separate transmit and receive site. COMMSTA Boston (NMF), COMMSTA Miami (NMA), and COMMSTA New Orleans (NMG). CAMSLANT also controls a NAVTEX transmitter site on Charleston, SC (NME). All HF transmissions such as flight following, WEFAX, SITOR, GMDSS/DSC, NAVTEX, etc originate from CAMSLANT and are broadcast from one of the 4 remote transmitter sites.

USCG CAMSPAC is located in PT Reyes, CA and is the smaller of the 2 CAMS. The mission responsibilities are virtually identical to that of CAMSLANT. CAMSPAC also has remote transmit and receive sites and has some support functions for COMMSTA Kodiak, AK.

All are under the Command of either LANT-6 or PAC-6, a CAPT, (O-6) and they are e responsible to the Flag Officer Commanding, the CG-6 Directorate, C4IT branch.

The USCG uses 4 different types of mechanisms for HF Radio Communications. Note, all voice emissions are USB regardless of frequency.

The first method is the use of the Customs Over The Horizon Enforcement Network COTHEN ALE Network. This network supports the majority of both normal flight operations and flight following as well as operational coordination for US Coast Guard fixed and rotary wing aircraft. COTHEN became the primary HF communications system for USCG assets as of 2010.

The next method is the use of a secondary USCG HF Radio network that primarily supports Fixed and rotary wing aircraft which are not equipped with COTHEN capable HF radios. The following frequencies are available although 5 and 8 mHz are used most:

5696.0
8983.0
11201.0

Third, the USCG uses a set of HF frequencies for tactical radio communications between aircraft, base stations, and USCG Cutters:

5320.0
8337.6
10993.6
11197.4  (Mobile AL)

And finally, the USCG has a network which operates on the following frequencies:

3053
4730
6709
8057
8859
8980
9034
11196
13221
15082
17988
20135.5
23072.5

Also see the the Oct 2006 Milcom column edited by Larry Van Horn in MT which, while now outdated by changes in USCG Operations and policy, provide insight to some aspects of USCG communications.

USCG Auxiliary

The USCG has moved to Narrowband channels and abandoned the older wideband channels.

Frequency  Input   
Type  Alpha Tag  Description  Mode  Tag 
138.47500      USCG AuxTac1 Tactical 1  FMN  Federal 
142.82500      USCG AuxTac2 Tactical 2  FMN  Federal 
143.47500      USCG Aux Sim Nationwide Simplex "Yankee 3"  FMN  Federal 
150.70000  149.20000   RM  USCG Aux Rpt Repeater  FMN  Federal 

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The New Repeaters as Reported/Confirmed are:

Template:Largetable |State||Repeater Tone||Location |- |AZ||107.2 Hz||Mt Ord -Pheonix |- |CA||110.9 Hz||Rasnow Peak |- |CA||136.5 Hz||Santiago Peak |- |CA||146.2 Hz||Otay |- |CA||186.2 Hz||Southern CA |- |CA||???.? Hz||Lake Shasta |- |CA||???.? Hz||Palos Verdes |- |CT||118.8 Hz||New Haven |- |CT||131.3 Hz||New London |- |DE||100.0 Hz||Manasquan |- |MA||85.4 Hz||Swampscott |- |MA||94.8 Hz||Kingston |- |MA||103.5 Hz||Amesbury |- |MA||114.8 Hz||Falmouth |- |MA||No PL||Temp Repeater |- |MA||156.7 Hz||Holyoke |- |ME||179.9 Hz||Damariscotta |- |ME||???.? Hz||Bar Harbor |- |ME||179.9 Hz||York |- |NC||114.8 Hz||Lake Norman |- |NJ||???.? Hz||Sewaren |- |NJ|| 88.5 Hz||Manasquan |- |NY||127.3 Hz||Lake George |- |NY||131.8 Hz||NYC |- |NY||136.5 Hz||Farmingdale |- |NY||151.4 Hz||Montauk |- |NY||167.9 Hz||Albany |- |NY||186.2 Hz||Hudson |- |NY||???.? Hz||Highland |- |OR||156.7 Hz||North Bend |- |PA||131.8 Hz||Delaware Gap Area |- |RI||???.? Hz||Kingstown |- |UT||156.7 Hz||Navajo Mtn - Lake Powell |- |VT||110.9 Hz||Mt Mansfield - Burlington |- |}


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