VHF Radio
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===Procedures=== | ===Procedures=== | ||
* [[VHF Procedures|General Marine VHF Radio Operating Procedures]] | * [[VHF Procedures|General Marine VHF Radio Operating Procedures]] | ||
- | * [[VHF Distress|VHF Distress Calling Procedures (MAYDAY and SECURITE]] | + | * [[VHF Distress|VHF Distress Calling Procedures (MAYDAY and SECURITE)]] |
* [[Radio Battery Care|Care and Maintenance of Batteries]] | * [[Radio Battery Care|Care and Maintenance of Batteries]] | ||
Revision as of 13:42, 19 July 2008
Contents |
MARINE VHF RADIO
Description
Describe VHF radio, it's uses, etc
Procedures
- General Marine VHF Radio Operating Procedures
- VHF Distress Calling Procedures (MAYDAY and SECURITE)
- Care and Maintenance of Batteries
Also see the FCC Website (covers HF Marine Radio as well)
Marine VHF Frequencies & Channels
- VHF CHANNELS & FREQUENCIES AND THEIR USE
- Note:-The Channel numbers run from 01A >>>>88A (in the Left hand Column). The frequencies In Mega Hertz (MHz) are given for each designated channel, first the transmit MHZ then the Receive MHz. Against each channel is the authorised use for that channel.
- Sub-note:- The underlisted are those that are found in most VHF marine radios that are marketed today - 'some earlier models will not have all the US channels and frequencies'.
01A | 156.050 | 156.050 | Port Operations and Commercial, VTS. Available only in New Orleans / Lower Mississippi area. |
05A | 156.250 | 156.250 | Port Operations or VTS in the Houston, New Orleans and Seattle areas. |
06 | 156.300 | 156.300 | Intership Safety |
07A | 156.350 | 156.350 | Commercial |
08 | 156.400 | 156.400 | Commercial (Intership only) |
09 | 156.450 | 156.450 | Boater Calling. Commercial and Non-Commercial. |
10 | 156.500 | 156.500 | Commercial |
11 | 156.550 | 156.550 | Commercial. VTS in selected areas. |
12 | 156.600 | 156.600 | Port Operations. VTS in selected areas. |
13 | 156.650 | 156.650 | Intership Navigation Safety (Bridge-to-bridge). Ships >20m length maintain a listening watch on this channel in US waters. |
14 | 156.700 | 156.700 | Port Operations. VTS in selected areas. |
15 | -- | 156.750 | Environmental (Receive only). Used by Class C EPIRBs. |
16 | 156.800 | 156.800 | International Distress, Safety and Calling. Ships required to carry radio, USCG, and most coast stations maintain a listening watch on this channel. |
17 | 156.850 | 156.850 | State Control |
18A | 156.900 | 156.900 | Commercial |
19A | 156.950 | 156.950 | Commercial |
20 | 157.000 | 161.600 | Port Operations (duplex) |
20A | 157.000 | 157.000 | Port Operations |
21A | 157.050 | 157.050 | U.S. Coast Guard only |
22A | 157.100 | 157.100 | Coast Guard Liaison and Maritime Safety Information Broadcasts. Broadcasts announced on channel 16. |
23A | 157.150 | 157.150 | U.S. Coast Guard only |
24 | 157.200 | 161.800 | Public Correspondence (Marine Operator) |
25 | 157.250 | 161.850 | Public Correspondence (Marine Operator) |
26 | 157.300 | 161.900 | Public Correspondence (Marine Operator) |
27 | 157.350 | 161.950 | Public Correspondence (Marine Operator) |
28 | 157.400 | 162.000 | Public Correspondence (Marine Operator) |
63A | 156.175 | 156.175 | Port Operations and Commercial, VTS. Available only in New Orleans/Lower Mississippi area. |
65A | 156.275 | 156.275 | Port Operations |
66A | 156.325 | 156.325 | Port Operations |
67 | 156.375 | 156.375 | Commercial. Used for Bridge-to-bridge communications in lower Mississippi River. Intership only. |
68 | 156.425 | 156.425 | Non-Commercial |
69 | 156.475 | 156.475 | Non-Commercial |
70 | 156.525 | 156.525 | Digital Selective Calling (voice communications not allowed) |
71 | 156.575 | 156.575 | Non-Commercial |
72 | 156.625 | 156.625 | Non-Commercial (Intership only) |
73 | 156.675 | 156.675 | Port Operations |
74 | 156.725 | 156.725 | Port Operations |
77 | 156.875 | 156.875 | Port Operations (Intership only) |
78A | 156.925 | 156.925 | Non-Commercial |
79A | 156.975 | 156.975 | Commercial. Non-Commercial in Great Lakes only |
80A | 157.025 | 157.025 | Commercial. Non-Commercial in Great Lakes only |
81A | 157.075 | 157.075 | U.S. Government only - Environmental protection operations. |
82A | 157.125 | 157.125 | U.S. Government only |
83A | 157.175 | 157.175 | U.S. Coast Guard only |
84 | 157.225 | 161.825 | Public Correspondence (Marine Operator) |
85 | 157.275 | 161.875 | Public Correspondence (Marine Operator) |
86 | 157.325 | 161.925 | Public Correspondence (Marine Operator) |
AIS 1 | 161.975 | 161.975 | Automatic Identification System (AIS) |
AIS 2 | 162.025 | 162.025 | Automatic Identification System (AIS) |
88A | 157.425 | 157.425 | Commercial, Intership only. |
- NOAA Weather Radio Frequencies
- Channel Frequency (MHz)
- WX1 162.550
- WX2 162.400
- WX3 162.475
- WX4 162.425
- WX5 162.450
- WX6 162.500
- WX7 162.525
See the NOAA Weather Radio Homepage for more information.
Additional Information, Frequencies, & Charts
Frequencies are in MHz. Modulation is 16KF3E or 16KG3E.
Note that the letter "A" indicates simplex use of the ship station transmit side of an international duplex channel, and that operations are different than international operations on that channel. Some VHF transceivers are equipped with an "International - U.S." switch for that purpose. "A" channels are generally only used in the United States, and use is normally not recognized or allowed outside the U.S. The letter "B" indicates simplex use of the coast station transmit side of an international duplex channel. The U.S. does not currently use "B" channels for simplex communications in this band.
Boaters should normally use channels listed as Non-Commercial. Channel 16 is used for calling other stations or for distress alerting. Channel 13 should be used to contact a ship when there is danger of collision. All ships of length 20m or greater are required to guard VHF channel 13, in addition to VHF channel 16, when operating within U.S. territorial waters. Users may be fined by the FCC for improper use of these channels. See Marine Radio Watch Requirements for further information.
Emergency channels
Emergency channel numbers
References
Publications, etc.
Forum Discussions
Links to discussions on the Cruiser Log forum
External links
Links to relative websites.
.