UNITED STATES COAST GUARD COMMUNICATIONS ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ This frequency list is derived from USCG sources. It should be noted that certain law enforcement operations utilize "discrete" frequencies, that are not depicted in any publicly available listings. When conditions warrant, specific elements of USCG law enforcement show up on the listed frequencies, employing tactical callsigns and coded messages. Although this listing is the stated usage (for individual freqs), on a when needed basis, the USCG is at liberty to utilize its HF frequencies, for whatever purpose they deem necessary. The list itself will show in this order the following data: (1) Frequency, (2) Transmission mode, (3) Xmsm type, (4) station/usage, (5) Notes. (1) Frequency - shown are the allocated Carrier freqs. Some freqs may be shown more than once. (2) In a single usage mode, the word in parentheses will be used. Multiple usage will use the single letter codes. V (voice) normally USB C (CW) R (RTTY) - 170 or 850 shift. 2.0 khz above the listed carrier freq. F (FAX) - facsimile. 1.9 khz above listed carrier freq. P (pulse) - Navigational signals from Omega or Loran-C nets. (3 Transmission types spx - simplex dpx - duplex both - either spx or dpx when required -- - pulse - Omega or Loran-C (4) Station/Usage - Main USCG Communication facilities are: NMA - Miami FL NMO - Honolulu HI NMC - San Francisco NMR - San Juan, PR NMF - Boston, MA NOJ - Kodiak, AK NMG - New Orleans NRV - Barrigada, Guam NMN - Portsmouth, VA COMMON indicates used by all of the above facilities. UNITS - any CG cutter or aircraft. (5) Notes - if applicable will show duplex freq or a numerical footnote. (Tanks to SPEEDX for the above and following info.) 10.2 pulse - - Omega- North Dakota & Hawaii (1) 11.5 pulse - - " " 11.33 pulse - - " " 11.8 pulse - - Omega -Hawaii station 13.1 pulse - - Omega - North Dakota station 13.6 pulse - - Omega - North Dakota and Hawaii stations 90-110 pulse - - LORAN-C network signals 410 CW spx International Maritime Radio Direction 416 CW spx NOJ/Cutter (#2 all medium wave freqs) 420 CW spx NMC/Cutter...Marine info scheduled b/c 427 CW spx NMF/Cutter 430 CW spx NMR/Cutter 432 CW spx NMG/Cutter 440 CW spx NMO,NMA/Cutter...marine info scheduled b/c 448 CW spx NMN,NMC/Cutter...marine info scheduled b/c 450 CW spx NOJ/Cutter..marine info scheduled b/c 466 CW spx NMN,NMR,NRV/Cutter..marine info sched. b/c 470 CW spx NOJ/Cutter...marine info scheduled b/c 472 CW spx NMF,NMC/Cutter..marine info scheduled b/c 486 CW spx NMG/Cutter 500 CW spx Intn'l Distress & calling frequency 500 CW xmit Non-scheduled Urgent & Safety Marine b/c 512 CW spx Secondary intn'l Calling Frequency 518 CW xmit Experimental USCG Nav. warning b/c (#3) 522 Voice/CW spx Homing - air to air & air to surface 532 voice/CW spx Homing - air to air & air to surface 1750.5 CW spx Disaster comms - channel 1 (see #4) 1751.5 CW spx " channel 2 1752.5 CW spx " channel 3 1753.5 CW spx " channel 4 1754.5 CW spx " channel 5 1755.5 CW spx " channel 6 1756.5 CW spx " channel 7 1757.5 CW spx " channel 8 1761.5 voice/cw spx " channel 9 1768.5 voice spx " channel 10 1775.5 voice spx " channel 11 1782.5 voice spx " channel 12 1789.5 voice spx " channel 13 1796.5 voice spx " channel 14 2003 voice spx CG Sta/CG cutter/ship - Great Lakes Only 2003 voice duplex CG cutter/marine operator. dpx: 2450 khz 2003 voice xmit Non-scheduled US 2009 voice dpx CG cutter/Marine Op.-dpx:2442,2466,2506,2566 2031 voice dpx CG cutter/Marine operator -dpx:2490,2566 2056 RTTY both NOJ/Units dpx:2376, khz 2082.5 voice spx CG Cutter/ship - All areas but Great Lakes. 2086 voice dpx CG Cutter/Marine operator dpx:2585 2093 voice spx CG Cutter/ship - all areas but Great Lakes. 2103.5 voice spx Intra-Coast Guard usage. 2118 voice dpx Coast Guard Cutter/Marine operator dpx:2514 2126 voice dpx CG Cutter/Marine operator dpx:2522 khz 2134 voice dpx CG Cutter/Marine operator dpx:2312,2530. 2141 voice spx CG Aircraft/Ground -Alaska only. 2142 voice dpx CG Cutter/Marine operator dpx:2538 khz 2150 voice spx Emergency CG/USN, Harbor -L.A. & Long Beach 2158 voice dpx CG Cutter/Marine operator dpx:2550 khz 2166 voice dpx CG Cutter/Marine operator dpx:2558 khz 2182 voice spx Intn'l Distress & Calling freq. 2182 voice xmit announcement of upcoming Marine Info b/c. 2198 voice dpx CG Cutter/Marine operator dpx:2582,2590 khz 2203 voice spx CG Cutter/Ship - Gulf of Mexico only 2206 voice dpx CG Cutter/Marine operator dpx:2582,2598. 2230 voice spx 8th CG district -Auxilliary/Training. 2234.5 RTTY spx NMA, NMG/Units 2240 voice dpx CG Cutter/Marine operator dpx:2400 khz 2261 voice spx CG Aircraft to Ground,(Continental U.S. only) 2276 voice spx CG Cutter/USN Dahlgren & Wash DC units. 2328 RTTY spx CG Cutter Intership 2350 voice spx CG Cutter/US Army Corps of Engineers 2366 voice dpx CG Cutter/Marine operator dpx:2450 2382 voice dpx CG Cutter/Marine operator dpx:2466, 2482 2390 voice dpx CG Cutter/Marine operator dpx:2566 2406 voice dpx CG Cutter/Marine operator dpx:2442, 2506 2413 V/C/R spx North Atlantic/Norwegian Sea Loran-C net 2430 voice dpx CG Cutter/Marine operator dpx:2572, 2482 2442 RTTY spx NMF, NMN/Units 2450 voice spx NOJ/Kodiak Island Non-Govt stns. (Emergency) 2458 voice dpx CG Cutter/Marine operator dpx:2506 khz 2512 voice spx CG Cutter/Alaskan non-gov't stations. 2512 voice spx CG Stations/Ships (Alaska only) 2610 RTTY spx NOJ/Units (or remote keying at Adak.) 2610 RTTY both NMC/Units dpx:2606 khz 2638 voice spx CG station/CG Cutter/Ship (ALL areas) 2638 voice spx CG Station/CG Cutter/Ship (All areas) 2638 voice xmit non-scheduled Urgent & Safety b/c 2646 RTTY both NMF, NMN/Units dpx:2234 KHz 2659 voice spx 12th CG District Operations 2660 V/C/R spx Northwest Pacific LORAN-C network 2662 voice spx 3rd CG District Operations 2664 RTTY/CW spx NOJ/Units (or via remote at Barrow) 2666 RTTY/CW spx 7th & 17th CG District Operations 2667 voice spx Intra-Coast Guard usage. 2670 voice xmit scheduled & non-scheduled Marine Info b/c 2670 voice spx All CG District Auxilliary/Training Ops 2670 voice spx Intra-Coast Guard usage. 2672 RTTY spx NMF, NMN,NMC,NOJ, NMO,NRV/units 2675 voice spx 5th & 11th CG District Ops 6tict Emergency Net. 2678 voice spx 7th CG District/US Dept of Interior 2678 voice spx 7th, 9th & 17th CG District Operations 2680 RTTY spx NMF,NMN,NOJ,NMO,NRV,NMC/units 2682 RTTY/CW spx 12th CG District Operations 2686 voice spx 8th & 14th CG District Operations 2686 voice spx 3rd & 12th CG District Operations 2688 RTTY spx NOJ/units 2690 RTTY/CW spx 5th CG District Operations 2691 voice spx 7th CG District Operations 2694 voice spx 1st & 11th CG District Ops. 2696 RTTY spx NMO, NRV/units 2698 RTTY/CW spx 8th & 14th CG District Ops 2699 voice spx 8th & 13th CG District operations 2702 voice spx 5th & 14th CG District Operations 2703 RTTY dpx NMF, NMN/units dpx:2328 khz 2704 RTTY/CW spx USCG Emergency Command Net (see #6) 2707 voice spx 1st & 13th CG District Operations 2710 voice spx 11th CG District Operations 2716 voice spx CG Cutter/USN Harbor Control 2738 voice spx CG Stations/CG Cutter/Ships-except Gulf 2748 V/C/R spx Aleutian LORAN-C Network 2748 Voice spx 17th CG District Operations 2758 voice spx NRW3/FAA Nome AK (weather) 2809 V/C/R spx Aleutian LORAN-C Network 2809 RTTY spx NOJ/Units 2830 voice spx CG Cutter/Ships - Gulf of Mexico only 2830 voice spx CG Stations/Ships - except Great Lakes. 2836 voice spx CG Cutter/USN Harbor Control 2845 voice spx CG Cutter/Pago Pago (American Samoa) 2925.4 voice spx NRW3/CG Aircraft 3023 voice spx Intn'l Search & Rescue Frequency 3120 voice spx CG Helicopter/Surface (USN shares freq) 3123 voice spx CG Aircraft/Surface (USN shares freq) 3207 RTTY spx NMA, NMG, NMN/Units 3207.5 RTTY/CW spx USCG Emergency Command Net (#7) 3208.1 voice spx USCG Emergency Command Net (#7) 3215 voice spx NRW2/US Dept of Interior 3241 voice spx 9th CG District Operations 3253 voice spx 1st CG District Operations 3256 V/C/R spx North Atlant./Norwegian Sea Loran-C net (#8) 3382 voice spx 11th CG District Operations 3385 voice spx CG Cutter/Alaskan Native Health Service 3387 RTTY/CW spx NOJ/Units (via remote at Barrow) 3387 RTTY spx NMC,NMF,NMN/units & CG Intership 3411 voice spx NRW3/Munz Northern Airlines (landing info) 3605 RTTY spx North Atlantic/Norwegian Sea LORAN-C Net 3605.5 voice spx North Atlantic/Norwegian Sea LORAN-C Net 3625.5 RTTY spx Mediterranean Sea LORAN-C Network (#9) 3625.5 voice spx Mediterranean Sea LORAN-C Network (#10) 3663 voice spx NCI4/US Military in Turkey 3785.5 RTTY spx Northwest Pacific LORAN-C Network 3786.1 voice spx Northwest Pacific LORAN-C Network 3798 voice spx Mediterranean Sea LORAN-C Network (#11) 4040 voice spx NRV/Joint Military Emergency Disaster Net 4046.6 voice spx Pacific USCG Emergency Command Network 4048 RTTY/CW spx USCG Emergency Command Network 4048.5 V/C/R spx North Atlantic/Norwegian Sea LORAN-C network 4048.6 Voice spx Atlantic USCG EMergency Command network 4050 V/C/R spx Hawaiian/Central Pacific LORAN-C network 4125 voice spx Emergency Distress Frequency 4125 voice spx NMG, NMC,NMO, NOJ, NMJ1/units 4125 voice xmit Scheduled Marine Information b/c 4143.6 voice spx COMMON/Units 4164.1 RTTY xmit Oceanographic Buoy-Interrogation by NMA/NMC 4164.7 RTTY xmit Oceanographic Buoy 4165.3 RTTY xmit " " 4175.5 RTTY spx CG Cutter Intership 4228 RTTY spx NMC/Units 4230 RTTY spx NMF,NMN/Units 4233 RTTY spx NMF,NMN/Units 4243 RTTY/CW both NMA, NMG/Units dpx:4175.5 khz 4260 RTTY spx NMF,NMN/Units 4296 RTTY both NMF,NMN/Units dpx: 4175.5 khz 4296 RTTY both NMO,NRV, NMC/Units dpx:4175.5 khz 4296 RTTY both NOJ/Units (remote key Adak) dpx: 4175.5 4296.1 FAX xmit NOJ -Marine Weather charts 4302 RTTY/CW both NOJ/Units dpx:4175.5 khz 4314 RTTY both NMA, NMG/units dpx:4175.5 khz 4332 RTTY spx NOJ/Units 4335 RTTY/CW spx COMMON/units 4335 RTTY/CW spx USCG Emergency Command Network 4335 voice spx Secondary CG Aircraft/Surface 4346 cw xmit NMC -scheduled Marine Information b/c 4349.5 RTTY both NMA,NMG,NMF,NMN,NOJ,NMO/Units. dpx:4170 KHz 4353 RTTY both NMA,NMG,NMF,NMN,NMC,NMO,NOJ/Units. dpx: 4174 KHz 4376 Voice dpx Common/Units except for NMR/NMG dpx:4081.6 KHz 4376 voice spx Law Enforcement Activities. 4400.8 voice dpx COMMON/Units dpx:4106.4 KHz 4419.4 voice spx COMMON/Units 4428.7 voice dpx COMMON/Units except NMR dpx:4134.3 KHz 4428.7 voice xmit Scheduled Marine information b/c 4525 cw xmit NMO - scheduled Marine Info b/c 4531 V/C/R spx Aleutian Loran-C Network 4549.5 RTTY/CW spx Northwest Pacific Loran-C Network 4550.1 voice spx Northwest Pacific Loran-C Network 4573 RTTY/CW spx Aleutian Loran-C Network 4573 RTTY dpx NMO,NRV/Units dpx:4177 KHz 4575 voice spx Aleutian Loran-C Network 4575 voice spx 17th CG District Operations 4813.5 voice spx NRV/Joint Military Emergency Disaster Net 4850 voice spx 8th CG District Operations 4850 voice spx CG cutter/US Army Corps of Engineers 4855.5 RTTY spx North Atlantic/Norwegian Sea Loran-C Net 4856 voice spx North Atlantic/Norwegian Sea Loran-C Net 4883 V/R spx Northwest Loran-C Net (except NRT2 & NRT9) 5063 V/C/R spx Hawaiian/Central Pacific Loran-C Network 5063 RTTY/CW spx Northwest Pacific Loran-C Network 5063.6 voice spx Northwest Pacific Loran-C Network 5066 voice spx Mediterranean Sea Loran-C network 5080 voice spx USCG Channel Island Harbor (USN shares) 5123 voice spx Mediterranean Sea Loran-C Net (NCI4/NCI10) 5226 V/C/R spx Aleutian Loran-C Network 5287.5 voice spx CG Cutter/Pago Pago (American Samoa) 5313 V/C/R spx North Atlantic/Norwegian Sea Loran-C Net 5315.5 V/C/R spx Northwest Pacific Loran-C Network 5317 V/C/R spx Aleutian Loran-C Network 5320 voice spx 5th, 7th, 8th, 11th, 12th, 14th, CG Dist. 5320 V/R spx Northwest Pacific Loran-C Net (#12) 5320 RTTY/CW xmit NIK/NMF International Ice Patrol b/c 5422 RTTY spx NOJ/Units 5422 V/C/R spx Aleutian Loran-C Network 5422.5 voice spx 5th CG District Fixed Emergency Network 5422.5 voice spx Intra Coast Guard Operations 5530 V/C spx NCI4/Air-Surface comms in Turkey 568O voice spx International Search & Rescue frequency 5692 voice spx CG Helicopter/Surface (USN Shares) 5696 voice spx CG Aircraft/Surface (USN shares) 5745 V/C/R spx Aleutian Loran-C Network (except NOJ) 5765 voice spx NMA/Frontier Guard Forces Cuba 6215.5 voice spx Emergency Distress Frequency 6218.6 voice spx CG Cutter/Pago Pago (American Samoa) 6218.6 voice spx Common/units 6221.6 voice spx Common/units 6246.1 RTTY xmit Oceanographic Buoy 6246.7 RTTY xmit Oceanographic Buoy 6247.3 RTTY xmit Oceanographic Buoy 6266 RTTY spx CG Cutter Intership 6338.5 RTTY spx NMF, NMN/Units 6338.5 RTTY both NMC/Units dpx:4176 KHz 6338.5 RTTY both NOJ/Units dpx:6266 KHz 6338.5 RTTY both NMO, NRV/Units dpx: 6266.5 6342 RTTY spx NMF, NMN/Units 6353 RTTY both NMC/Units dpx:4177 KHz 6377.5 RTTY both NOJ/Units (via remote ADAK) dpx: 6267 KHz 6381 RTTY spx USCG Emergency Command Network 6381 RTTY/CW spx Common/Units 6381 voice spx Secondary Air/Surface 6419.5 RTTY both NMF, NMN/Units dpx:6266.5 or 6267.5 khz 6419.5 RTTY spx NMC/Units 6419.5 R/C spx NOJ/Units (via remote Barrow) 6423 RTTY spx NOJ/Units 6455 RTTY both NMO/Units dpx:6267.5 KHz 6465 RTTY both NMA, NMG/Units dpx:6266 KHz 6465 RTTY both NMC/Units dpx:6266.5 KHz 6472 RTTY spx NMF, NMN/Units 6475.5 RTTY spx NMF, NMN/Units 6489.5 RTTY both NMA, NMG/Units dpx: 6267 KHz 6494 RTTY both COMMON less NMR & NRV dpx:6256 KHz 6498 RTTY both NMA, NMG, NOJ/Units dpx: 6260 KHz 6502 RTTY both NMF, NMN, NMO, NMC, NOJ/Units.dpx: 6264 6506.4 voice both Common/Units dpx: 6200 KHz 6506.4 voice xmit Scheduled Marine Information b/c 6512.6 voice both NMA/Units dpx: 6206.2 6512.6 voice spx Law Enforcement Activities 6518.8 voice both Common/Units less NMR/NMG. dpx: 6212.4 KHz 6521.9 voice spx Common/Units 6617 voice spx NMJ22, NRW2/ Reeve Aleutian Airlines 6812 V/C/R spx Aleutian Loran-C Network 6835 V/C/R spx Aleutian Loran-C Network 6943.5 voice spx Mediterranean Sea Loran-C Net (NCI & NCI3) 6943.5 RTTY spx Mediterranean Sea Loran-C Net 6945 V/C/R spx Aleutian Loran-C Network 6945 RTTY spx NOJ/Units 7349.5 RTTY both NMC/Arctic & Antarctic Icebreaker Ops dpx: 6267.5 KHz 7377.5 V/C/R spx North Atlantic /Norwegian Sea Loran-C Net (#13) 7441 V/C/R spx Aleutian Loran-C Network 7441 RTTY spx Mediterranean Sea Loran-C Network 7441 Voice spx Mediterranean Sea Loran-C Network (#14) 7473 V/C/R spx Hawaiian/Central Pacific Loran-C Network 7507 Voice spx USN Hurricane Warning Net/CG Liaison 7510.5 RTTY spx North Atlantic/Norwegian Sea Loran-C Net 7511 Voice spx North Atlantic/Norwegian Sea Loran-C Net 7527 Voice spx Law Enforcement US Customs/CG 7528 RTTY/CW spx USCG Emergency Command Network 7528 RTTY spx NMF/Arctic Icebreaker Operations 7528.6 Voice spx USCG Emergency Command Network 7580 V/R spx Northwest Pacific Loran-C Network (#15) 7715.5 RTTY spx North Atlantic/Norwegian Sea Loran-C (#16) 7716 Voice spx " " " 7836 RTTY/CW spx Northwest Pacific Loran-C Network 7836.6 Voice spx " " " 7918.5 V/C/R spx " " " 8021.5 Voice spx Mediterranean Sea Loran-C Network (#10) 8021.5 RTTY spx " " " (#9) 8063 RTTY/CW spx Northwest Pacific Loran-C Network 8063.6 Voice spx " " " 8111 RTTY spx Mediterranean Sea Loran-C Network(#9) 8111 Voice spx " " 8245 Voice spx USCG Law Enforcement Activities ** 8291.1 Voice spx COMMON/Units/Ships 8294.2 Voice spx " " " 8295.6 RTTY spx CG Cutter Intership 8329.6 RTTY xmit Oceanographic Buoy 8330.2 RTTY xmit " " 8330.8 RTTY xmit " " 8364 CW spx Int'l Lifeboat, Liferaft, & Survival Craft Frequency 8435 RTTY/CW both NOJ/Units (via Barrow remote) dpx: 8295.6 8439 RTTY spx NMA, NMG/ Units 8449 RTTY both NMF, NMN/ Units dpx: 8296.1 khz 8455 RTTY spx NMA/ Units 8455 RTTY both NOJ/ Units dpx: 8296.6 khz 8457 RTTY spx NMC/Units 8457 RTTY/CW spx NOJ/Units 8457.1 FAX xmit NOJ - Weather Charts 8459 RTTY both NMC/ Units 8459 RTTY spx NOJ/ Units 8463 RTTY both NMO, NRV/Units dpx: 8296.1 khz 8488 RTTY both NMF, NMN/Units dpx: 8297.1 khz 8500.1 FAX xmit NIK/NMF - Iceberg Charts 8502 RTTY/CW xmit NIK/NMF - Scheduled Ice Patrol Info 8508 RTTY both NMO/Units dpx: 8297.1 khz 8532 RTTY spx NMF, NMN/Units 8552 RTTY both NMG/Units dpx: 8295.6 khz 8564 RTTY spx NOJ/Units (via Adak remote) 8572 RTTY spx NMO, NRV/Units 8580 RTTY spx NMC/Units 8632 RTTY spx NMF, NMN/Units 8648 RTTY/CW spx USCG Emergency Command Network 8648 voice spx Secondary CG Air/Surface Frequency 8648 RTTY/CW spx COMMON/Units 8680 RTTY both NMA, NMG/Units dpx:8296.6 khz 8680 RTTY both NMC, NMO, NIB/Units dpx: 8297.1 8680 RTTY spx NMO, NRV/Units 8680.1 FAX xmit NMC - Marine Weather Charts 8682 CW xmit NMC - Scheduled Marine Information b/c 8704.5 RTTY both NMF, NMN, NMC/Units dpx: 8343.5 khz 8708.5 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 8347.5 8712.5 RTTY both NMF, NMN, NMC/Units dpx: 8351.5 8712.5 RTTY xmit NMC - Scheduled Marine Information b/c 8716 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 8355 8718.9 Voice both COMMON/Units dpx: 8195 KHz 8765.4 Voice xmit Scheduled Marine Information b/c 8765.4 Voice both COMMON/Units (less NMR) dpx: 8241.5 8768.5 Voice both NMA, NMG, NOJ/Units dpx: 8244.6 khz 8768.5 Voice spx Law Enforcement Activities 8774.7 Voice both NMF, NMC, NMO/Units dpx: 8250.8 khz 8980 Voice spx CG Helicopter/Surface (USN share) 8984 Voice spx CG Aircraft/Surface (USN share) 9050 CW xmit NMO - Scheduled Marine Information b/c 9073 V/C/R spx Aleutian Loran-C Network (less NOJ) 9108 RTTY spx NMF/Arctic Icebreaker Operations 9125 RTTY spx NMC/ Arctic & Antarctic Icebreaker Ops 9125 RTTY/CW spx USCG Emergency Command Network 9125.6 Voice spx " " " 9223 RTTY spx Northwest Pacific Loran-C Network 9223.6 Voice spx " " " 9278.5 V/C/R spx North Atlantic/Norwegian Sea Loran-C net 9297 RTTY spx Northwest Pacific Loran-C Net (#12) 9303 V/C/R spx Hawaii/Central Pacific Loran-C Network 9380 Voice spx USN Hurricane Warning Net/CG Liaison. 9396 V/R spx Mediterranean Sea Loran-C Net (#9) 9473.5 RTTY spx Mediterranean Sea Loran-C Network 9474 Voice spx " " " 9630 V/C/R spx Hawaiian/Central Pacific Loran-C Network 9977 RTTY spx Northwest Pacific Loran-C Net (#12) 10136 RTTY spx NMF/Arctic Icebreaker Operations 10136 RTTY/CW spx Atlantic USCG Emergency Command Network 10136.6 Voice spx " " " " 0 spx NMC/Arctic & Antarctic Icebreaker Ops 10166 RTTY/CW spx Pacific USCG Emergency Command Network 10166.6 Voice spx " " " 10333.6 Voice spx Mediterranean Sea Loran-C Net (#17) 10335.5 RTTY spx North Atlantic/Norwegian Sea Loran-C Net 10336 Voice spx " " " 10368.5 V/C/R spx Aleutian Loran-C Network 10368.5 RTTY spx NOJ/Units 10523 RTTY/CW spx Northwest Pacific Loran-C network 10523.6 Voice spx " " " 10938.5 Voice spx Mediterranean Sea Loran-C Net (#10) 10938.5 RTTY spx " " " (less NCI4) 10958.5 V/RTTY spx " " " (#10) 11028 V/R spx Northwest Pacific Loran-C Net (#12) 11076 Voice spx Law Enforcement Activities ** 11195 Voice spx CG Aircraft/Surface (USN share) 11198 Voice spx CG Helicopter/Surface (USN share) 11201 voice spx CG Aircraft/Surface (USN share) 11434 RTTY spx NMF/Arctic Icebreaker Operations 11434 RTTY both NMC/Arctic & Antarctic Icebreaker Ops dpx: 12518.5 khz 11434 RTTY/CW spx USCG Emergency Command Network (less NOJ) 11434.6 Voice spx " " " 11513 RTTY/CW spx " " " 11513.5 V/C/R spx North Atlantic/Norwegian Sea Loran-C Net 11513.6 Voice spx USCG Emergency Command Network 11606 V/C/R spx Northwest Pacific Loran-C Network 12148 RTTY/CW spx Atlantic USCG Emergency Command Network 12148.6 Voice spx " " " 12150 V/C/R spx Aleutian Loran-C Network (less NOJ) 12173 RTTY/CW spx Pacific USCG Emergency Command Network 12173.6 Voice spx " " " 12205 V/C/R spx Hawaiian/Central Pacific Loran-C Network 12429.2 Voice spx COMMON/Units 12432.3 Voice spx NMC/Units 12435.4 Voice spx COMMON/Units 12481.1 RTTY xmit Oceanographic Buoy 12481.7 RTTY xmit " " 12482.3 RTTY xmit " " 12518 RTTY spx CG Cutter Intership 12662.5 RTTY both NMO, NRV, NMN, NMF/Units dpx: 12518.5 12662.5 RTTY both NMC/Units dpx: 12519.5 khz 12698 RTTY both NOJ/Units dpx: 12518 khz 12712 RTTY spx NMC/Units 12728.1 FAX xmit NMC - Scheduled Marine Weather Charts 12730 CW xmit NMC - Scheduled Marine Information b/c 12730 RTTY both NMF, NMN/Units dpx: 12519.5 khz 1`]"EE $H.\< NMC/ Units 12741 RTTY/CW spx NOJ/Units (via Barrow remote) 12748 RTTY both NMO, NRV, NMC/Units dpx: 12519.5 khz 12748.1 FAX xmit NIK/NMF - Ice Patrol Charts 12750 RTTY/CW xmit NIK,NMF -Ice Patrol b/c 12752 RTTY both NMA, NMG/Units dpx: 12518 KHz 12784 RTTY both NMA, NMG/Units dpx: 12519 KHz 12784 RTTY/CW both NMO, NRV/Units dpx: 16693.5 12788 RTTY spx NMF, NMN/Units 12887.5 RTTY/CW spx USCG Emergency Command Network 12887.5 RTTY/CW spx Common/Units 12932.5 RTTY spx NMF, NMN/Units 13003 RTTY spx NMF, NMN/Units 13018 RTTY spx " " 13024.5 RTTY spx NOJ/Units 13025.5 RTTY spx NMF,NMN/Units 13067.5 RTTY/CW both NOJ/Units dpx: 16693 KHz 13071 RTTY both NMF, NMN, NMC/Units dpx: 12491 KHz 13075 RTTY both NMA, NMG, NMO, NOJ, NRV/Units-dpx:12495 KHz 13075 RTTY xmit NRV - Scheduled Marine Information b/c 13079 RTTY both NMF, NMN, NMC/Units dpx: 12499 KHz 13082.5 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 12502.5 KHz 13113.2 Voice xmit Scheduled Marine Information b/c 13113.2 Voice both Common/Units/Ships dpx: 12342.4 KHz 13150.4 Voice both NMA, NMF, NMN, NMC, NRV/Units dpx:12379.6 13150.4 Voice spx Law Enforcement Activities ** 13156.6 Voice both NMA, NMG, NOJ/Units dpx: 12385.8 KHz 13196.9 Voice both NMF, NMN, NMC, NMO/Units dpx: 12426.1 KHz 13421 RTTY spx North Atlantic/Norwegian Sea Loran-C (#18) 13421.5 Voice spx " " " 13608 RTTY/CW spx Northwest Pacific Loran-C Network 13608.6 Voice spx " " " 13664.9 RTTY spx Mediterranean Sea Loran-C Net (less NCI 10) 13655 CW xmit NMO - Scheduled Marine Information b/c 13665.5 Voice spx Mediterranean Sea Loran-C Net (less NCI 10) 13705 RTTY spx North Atlantic/Norwegian Sea Loran-C(#19) 13705.5 Voice spx " " " 14686 Voice spx Law Enforcement Activities ** 15081 Voice spx CG Aircraft/Surface (USN share) 15084 Voice spx CG Helicopter/Surface (USN share) 15473 RTTY/CW spx Pacific USCG Emergency Command Network 15473.6 Voice spx " " " 15548 RTTY/CW spx Atlantic USCG Emergency Command Network 15548.6 Voice spx " " " 15654.5 RTTY spx NMC/Arctic & Antarctic Icebreaker Ops 15654.5 RTTY spx NMF/Arctic Icebreaker Operations 15722.4 RTTY spx Mediterranean Sea Loran-C Net (less NCI10) 15723 Voice spx " " " 15875 V/C/R spx Northwest Pacific Loran-C Network 15922 V/C/R spx " " " 16044.5 Voice spx Mediterranean Sea Loran-C Net (#20) 16457.5 CW xmit NMO -Scheduled Marine Information b/c 16587.1 Voice spx Common / Units 16593.3 Voice spx " " 16638.1 RTTY xmit Oceanographic Buoy 16638.7 RTTY xmit " " 16639.3 RTTY xmit " " 16878.9 RTTY both NMO, NRV/Units dpx: 16694.5 khz 16878.9 RTTY both NMC/Units dpx: 16693.5 16907.7 RTTY/CW spx USCG Emergency Command Network 16907.7 RTTY/CW spx Common/Units 16957.2 RTTY both NMA, NMG/Units dpx: 16693 khz 16966 RTTY both NMO, NOJ/Units dpx: 16694 khz 16966.8 RTTY both NMF, NMN/Units dpx: 16693.5 khz 16981.2 RTTY spx NMO, NRV/Units 17000.4 RTTY both NMA, NMG/Units dpx: 16694 khz 17144.4 RTTY both NMF, NMN, NMC/Units dpx: 16694.5 khz 17149.2 RTTY spx NMF, NMN/Units 17149.3 FAX xmit NMC - Scheduled Weather Charts 17187.6 RTTY spx NMF, NMN/Units 17190 RTTY spx NMF, NMN/Units 17190 RTTY both NOJ/Units dpx: 22224 KHz 17197 RTTY both NMF, NMN, NMC/Units dpx: 16660 KHz 17201 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 16664 KHz 17205 RTTY both NMF, NMN, NMC/Units dpx: 16668 KHz 17205 RTTY xmit NMC - Scheduled Marine and Information b/c 17208.5 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 16671.5 17248.4 Voice both NMA, NMG, NMC/Units dpx: 16475.5 KHz 17270.1 Voice both Common/Units dpx: 16497.2 KHz 17307.3 Voice both Common/Units (less NMR) dpx: 16534.4 17307.3 Voice xmit Scheduled Marine Information b/c 17347.6 Voice both NMF, NMN, NMC, NMO/Units dpx: 16574.7 17488 RTTY/CW spx Northwest Pacific Loran-C Network 17488.6 Voice spx " " " 18195.5 RTTY spx NMF/ Arctic Icebreaker Operations 18195.5 RTTY/CW spx USCG Emergency Command Network 18196.1 Voice spx " " " 18666 Voice spx Law Enforcement Activities ** 18720.5 RTTY/CW spx USCG Emergency Command Network 18721.1 Voice spx " " " 18962.4 RTTY spx Mediterranean Sea Loran-C Net (less NCI10) 18963 Voice spx " " " 19296.5 RTTY/CW spx Northwest Pacific Loran-C Network 19297.1 Voice spx " " " 20262.5 Voice spx Mediterranean Sea Loran-C Net (#20) 22127.1 Voice spx Common/Units 22133.3 Voice spx Common/Units 22162.1 RTTY xmit Oceanographic Buoy 22162.7 RTTY xmit " " 22163.3 RTTY xmit " " 22405 RTTY spx NMF, NMN/Units 22472 CW xmit NMO - Scheduled Marine Information b/c 22485.5 RTTY spx NMF/Units 22525 RTTY spx NMF, NMN/Units 22525 RTTY both NMO, NRV/Units dpx: 22224.5 KHz 22543 RTTY both NMA, NMG/Units dpx: 22224 KHz 22543 RTTY both NMC, NOJ/Units dpx: 22224.5 KHz 22543 RTTY/CW spx USCG Emergency Command Network 22561 RTTY both NMF, NMN, NMC/Units dpx: 22192 KHz 22565 RTTY both NMA, NMG, NMO, NOJ, NRV/Units dpx: 22196 KHz 22565 RTTY xmit NRV - Scheduled Marine Information b/c 22569 RTTY both NMF, NMN, NMC/Units dpx: 22200 KHz 22572.5 RTTY both NMA, NMG, NMO, NOJ/Units dpx: 22203.5 22611.5 Voice both Common/Units dpx: 22015.5 KHz 22648.7 Voice both NMG, NMF, NMN, NOJ, NMC, NMO/Units dpx: 22052.7 KHz 22822.4 RTTY spx Mediterranean Sea Loran-C Net (less NCI10) 22823 Voice spx " " " 24088.5 Voice spx " " (#20) 25378 RTTY both NMF, NMA, NMG, NMN/Units dpx: 22224.5 25378 RTTY spx NMO, NMC, NRV/Units 25378 RTTY/CW spx USCG Emergency Command Network 25414 RTTY both NMC/Units dpx: 25075.8 KHz 26824.4 RTTY spx Mediterranean Sea Loran-C Net (less NCI10) 26825 Voice spx " " " 26965 AM Voice spx NRW2/Alaskan Hospital Medical Liaison (#21) 26985 " spx " " " 27085 Voice spx Mediterranean Sea Loran-C Net (#23) 27085 AM Voice spx NRW2/Alaskan Hospital Medical Liaison (#24) 27540 RTTY spx NMF/Arctic Icebreaker Operations 27540 RTTY SPX NMC/Arctic & Antarctic Icebreaker Ops 27575 Voice spx USCG Academy Local Liaison 27783 RTTY both NMC/Units dpx: 27588 KHz 29890 RTTY both NMC/Units dpx: 29907 KHz 29890 RTTY spx NMC/Arctic & Antarctic Icebreaker Ops ------------------------------------------------------------------- Notes to the USCG Communications List: (1) OMEGA Network....There are eight stations around the world that transmit pulse type signals, on specific frequencies, and at precise time lengths and intervals. Omega is used for general purpose navigation. Since VLF signals travel great distances, it is possible to receive most of the Omega sites, no matter where you are. For this purpose, there are special receivers, designed to interpret the Omega pulses and then display your position (via receiver micro- processor). The eight stations are located at: ALFA - Bratland, Norway BRAVO - Monrovia, Liberia CHARLIE - Kaneohe, Oahu, Hawaii DELTA - La Moure, North Dakota ECHO - Reunion Island FOXTROT - Trewlew, Argentina GOLF - Yarram, Australia HOTEL - Tsushima Island, Japan (2) Also can be used by merchant ships. In fact, many of the USCG frequencies in the 4,6,8,12,13,16,17,22,25, & 26 MHz bands can likewise be used in communications with merchant vessels. (3) The IMO (International Maritime Organization) is recommending a standard worldwide automated broadcast system, to transmit urgent maritime navigational warnings and notice to mariners. 518 KHz is the selected frequency, and such a system is now operational in Northern Europe. The USCG, in late 1983, will run a series of tests to evaluate the system. Coast Guard COMMSTA Boston will conduct the tests. (4) Disaster Communications Network - Composed of both government and non-government radio stations. Has been established to provide communications, in the event that a major disaster destroys normal communications facilities. Channel 9 - Scene of disaster only. (5) CG District operations involve any shore station or cutter within the boundries of the district. (6) USCG Emergency Command Network. = This is a point to point network for communications during emergencies, or for handling high priority traffic. When Atlantic or Pacific is not mentioned, frequency is used by both areas. Atlantic Area Stations: NMA - Miami, FL NMN - Portsmouth, VA NMF - Boston, MA NMR - San Juan, PR NMG - New Orleans, LA NOZ - Elizabeth City, NC Pacific Area Stations: NMC - San Francisco, CA NOJ - Kodiak, AK NMO - Honolulu, HI NRV - Barrigada, Guam (7) All except NRV Guam (8) NMF32, NMF33 & VDB only (9) NCI & NCI3 Only (10) All except NCI10 & AOB50 (11) All except AOB50 (12) All except NRT2 & NRT9 (13) All except VDB (14) All except NCI4 & NCI10 (15) All except NRT2 & NRT9 (16) OVY, JXL, OUN, JXP, NMS only (17) All except NCI3 & AOB50 (18) All except VDB & VDB2 (19) VDB, VDB2 & OVY only (20) NCI & AOB50 only (21) Channel #1 - working (22) Channel #3 - working (23) low power short range comms NCI, NCI4 & AOB50 (24) Channel #11 - calling