Talk:Marine VHF radio

Scope of article

Uses of VHF radio are much wider than just marine. I'm pretty sue that all aircraft use VHF for approach/landing/take-off and indeed for air traffic control. Lots of the rescue services have probably moved on to UHF. A lot of VHF mobile radio exists for despatching, taxis etc. User:Rjstott

• Agreed with rjstott -- this is essentially an article about marine VHF, which is one particular band of VHF using narrowband FM. It's a very important band, but there's rather a lot more to it. I'm going to add some stuff to it, but the marine VHF material needs to be broken out into its own article. Haikupoet 03:30, 9 Mar 2005 (UTC)

I renamed the page Marine VHF radio and merged the non-marine stuff, particularly the info on non-licensed operation, into VHF. I also set up VHF radio as a disambiguation page, with links to marine VHF radio, Airband, Amateur radio, etc. --agr 15:20, 9 Mar 2005 (UTC)

It seems to me that the page is currently limited to sea/ocean use. There are different rules for inland shipping (e.g. Basle agreement for Europe). So "maritime" here does not include inland shipping. 07:55, 15 June 2009 (UTC)~ —Preceding unsigned comment added by 193.172.18.3 (talk)

Minor link edit

In the operating procedures section, I have added a link to the article on pro-words. posted this for completism and reference Editus 18:05, 21 April 2007 (UTC)

UK Marine VHF Channels and Frequencies

An IP user added the table under the section, UK Marine VHF Channels and Frequencies. It is not in proper format and uses HTML. It needs to be converted into usual Wiki Table format.

Also, we need to provide information for areas outside of the UK. Billscottbob (talk) 22:21, 10 December 2007 (UTC)

Y Done. Table converted and columns made for other countries Billscottbob (talk) 19:11, 20 January 2008 (UTC)

strongly discouraged by some countries...

I never cease to be amazed at how the regulators in on country will forbid you to do a certain thing while the regulators in another country will require you to do precisely the same thing when both regulations were supposedly written to achieve the same end.

Here in the U.S. of A., The helmsman of every commercial vessel and, of every vessel greater than 20m LOA is required to stand watch on channel 13 (except in the lower Mississippi River where it's channel 67) whenever the vessel is under command so that he may chat with the helmsmen of other vessels about whose turn it is to enter the lock chamber, and who's to turn to the left and who's to turn to the right and so forth. The regulators consider channel 13 to be of such importance that the helmsman's radio must be dedicated to the purpose. It must not scan, and in particular, it must not be the same radio that is used to monitor channels 16, and 70.

71.253.13.216 (talk) 13:53, 9 February 2009 (UTC)

Remember, this page is just for discussing improivements to the article, not for discussing what's wrong with the world.   Will Beback  talk  19:16, 9 February 2009 (UTC)

TWC

In the table, I know what UKSAR is, but what does TWC stand for. It needs explaining on the page, I think.

CharlwoodHouse (talk) 09:58, 11 October 2009 (UTC)

unicode

It seems some relatively obscure characters from unicode that aren't supported on my system are being used in the table, looking one of them up it seems to be a cirled letter A. Is it really a good idea to have an important part of a table heading done using such a character?! Plugwash (talk) 11:42, 10 November 2010 (UTC)

Channel 16 frequencies

The table shows channel 16 as a duplex (ship/coast) channel and a change by an ip was reverted. In the handbook I have (from the Finnish communications ministry) it is half duplex only, at 156,800 kHz, with 161.400 kHz not mentioned. Same thing with all channels in the ranges 8-12, 13-17 and 67-77 (the use of most of these does of course vary internationally).

Are the coast channels in question used (somewhere) or are they just allocated in technical specifications? There should be some clear note about this, especially at channel 16 (which should be standardized globally).

--LPfi (talk) 10:20, 15 January 2011 (UTC)

This is the systematic pattern of channel allocation that countries are free to deviate from in their official maritime communication plans. Half-duplex channel use is indicated by a circled letter "A" or "B". --  Denelson83  18:16, 15 January 2011 (UTC)

Frequency use table

In the table the use of the frequencies are given for five countries. It is of course useful for people from those countries and people sailing in those waters. Are they chosen with some thought or just the countries of contributors with the information at hand?

Is there some standardisation, e.g. in Europe or East Asia? Are the treaties regulating channel use or some summaries available on-line? For us not in the countries in the table those global or regional regulations would be far more important.

--LPfi (talk) 10:39, 15 January 2011 (UTC)

Added Finland. We cannot have all countries here, but I suppose the channel use is representative for a larger area (at least the Baltic Sea, I suppose).

Are the AIS channels and frequencies correct? My frequency guide gives 161,975 and 162,025 for AIS, which would be the B-channels of 87 and 88, but does allocate the A-channels for normal use.

--LPfi (talk) 11:59, 14 March 2011 (UTC)