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Old 14 January 2008, 15:35   #11
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The Raymarine link pretty well says it all in terms of hooking it up.

Note that you cannot link NMEA and Navtex at the same time, even with a multiplexer as Navtex is not NMEA data.

As for the antenna, it's a cost and installation balance. A separate antenna may be cheaper if you have the space (and don't cost your time to install it!). As JW says, something like the Pacific heliflex antenna will do the job. A decent splitter is going to be around 100 (eg the EasySplit). They work on the basis that the VHF transmit power increases over a few milliseconds and the unit switches out the AIS receive circuit in that time.

Don't forget you'll need a PL-259 - BNC converter for an AIS unit. Do it that way then if you need a spare for the VHF it's easy to just unscrew the adapter.

I'm not sure I'd use the NASA pass-through and I'd have to check if it supports all NMEA or just GPS sentences (as it's original purpose was for connecting GPS and AIS to one port on a PC).

The NASA unit is a bit over 100; as an alternative the Comar dual receiver is just over 300. Either way, go for JW's suggestion of the box. The units don't generate any real heat but leave some space.

Let me know if we can help you out!
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Old 14 January 2008, 16:48   #12
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Ais

Codders,

I have a Raymarine AIS integrated into an E80 on Vampire. The comments regarding waterproofing and armouring the AIS are correct this will need to be done. The expert in this is Dorian Martin at RIBCRAFT who did the whole installation including NEMA 2000 linkage to the Suzuki OB. Please fire any q's my way and I will try and answer.

Greg
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Old 29 December 2009, 11:02   #13
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Raymarine AIS

Have a look at the AIS gear test I did in tha last issue of Practical Boat Owner - you get what you pay for with the NASA kit, and its worth trying to stretch the budget a bit further.
Also, with Raymarine chart plotters, be aware that in general if you plug in AIS, you cannot plug in NAVTEX, and vice versa.
Tim
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Old 30 December 2009, 04:49   #14
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A separate antenna is a good idea as the AIS can hog the signal as it receives on either AIS or VHF, not both at once.
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Old 04 January 2010, 04:38   #15
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Alternatively, does the new Icom 50(3?) not recieve AIS as well as squirting out position request & Distress positions from the DSC?

Granted, if the set goes down you've lost the lot.......
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Old 04 January 2010, 07:00   #16
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Seen this?


http://cgi.ebay.co.uk/Brookhouse-AIS...item3358c5ce36
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