Home
|
DGPS Advisories
|
GPS Constellation Status
|
GPS Testing Notices
|
LNMs
|
Almanacs
|
Nav Rules
|
AIS
|
North American Ice Service
|
Contact Us
|
Search
Maritime Telecommunications
Maritime Telecommunications
Automatic Identification Systems (AIS)
GMDSS
CG National Distress System
Digital Selective Calling
HF Distress Frequencies
U.S. VHF Channels & Freq
International VHF Channels and Frequencies
Electrotechnical Commission
MF & HF Channels
International Maritime Organization
Marine Safety Broadcasts
Maritime Mobile Service IDs
Radio Info For Boaters
Radio Watch Requirements
Reference Information
Primary Mission Areas:
Global Positioning System
Nationwide DGPS
Long Range Identification and Tracking
International Ice Patrol
Civil GPS Service Interface Committee
Automatic Identification System
Nationwide AIS (NAIS)
Electronic Navigation & Charting
Maritime Telecommunications
LORAN C (archive)
Services & Reporting:
Receive Free LNM Updates
Receive Free GPS Status Messages
Receive NANU Updates
Join CGSIC (free)
Report an ATON Discrepancy or Outage
Report a GPS Problem
Report an NDGPS Problem
Report an LRIT Problem
Report an NAIS Problem
Contact Us
Maritime Information:
USCG 'Homeport' Website
CG Nat'l Distress System
Global Maritime Distress and Safety System
Marine Safety Information Broadcasts
Maritime Telecommunications
MF & HF Channels
Nav Pubs and Documents
Radio Watch Requirements
Vessel Traffic Services
VHF Channels & Freqs
6 MHz Duplex Channels
ITU Channel No.
Coast Transmit
(kHz)
Ship Transmit
(kHz)
601
6501
6200
602
6504
6203
603
6507
6206
604
6510
6209
605
6513
6212
606
6516
6215
(Calling, distress & safety working on 6215 kHz simplex)
607
6519
6218
608
6522
6221
