Navtex is a radio broadcast system which includes weather, SAR alerts and the like. 2 frequencies - 490kHz and 518kHz. Some units require you to switch the frequency yourself, others receive on both. Some units have complex filtering which can be applied, others just show everything.
I have the ICS Navtex6 unit and find it excellent. Well worth investing some time to get the filtering right for you. I have 2 sets of filters - one just shows 'new' messages, and the other set shows all messages for the area I'm in.
Yes, agree its a good system, however a word of caution, aerial siting is VERY important, as you fit other equipment to the boat the signals from other stuff can interfere with the signals and you get poor reception. The problem is that when you are in your normal area the signal is proberly good and you get all the messages, however when you go travelling as you change areas and stations the signal can deteriorate and you only get half messages, murphys law says it's the vital bit thats missing!!!
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Cheers for that. I did think it was weather. It arrives on a fax roll type of thing. Is that right.
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No, current Navtes receivers use a screen, which you can scroll back on. It covers more than the weather, it also covers navigation warnings, missing buoys etc.
As others have said tis a weather thingy, have fitted them in the past but all honesty most are pants, you can set it up bob on on your own berth (as long as you dont have too many of them sailing doofers with sticky up masts around you they confuse the signal) but soon as you move to another or visiting marina signal goes all peculiar, spent more time faffing with, easier and quicker to just phone up the met ofice or get off the tinternet via wifi in marina
Hi Silver TT,
If the boat you've seen is older, it may have the paper roll style of Navtex. Those units receipt same info as more modern screen versions, weather, navigational warnings, etc - except you need to buy paper rolls!
If you do have one fitted and have any reception issues, the probable cause wil be antenna connections or indeed, antenna height. Most have stubby types - but some can be extended with a wire aerial on top.
Good luck with choosing your boat
JOHN