Good news re Nasa AIS Radar

Endeavourquay

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29 Aug 2007
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218
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Gosport
www.endeavourchandlery.co.uk
Having been chatting to the manufacturers, I am very pleased to find out that the actual face, screen and control buttons are in fact splash proof to the ISP65 standard, The O ring supplied will give some water ingress protection to the back of the unit, but would need to be suplemented with a better sealant(as we do with most of our instruments).

So the risk of spray or rain getting it wet, isnt as great as I feared.
Though there is the screen, in common with all such screens they absorb sunlight and could if neglected on a hot sunny day, cook, but that goes too, for our chartplotters and all other such screens and is why we are supplied with covers for them.
Nasa know that the best conditions for maximum life of the units is inside the cabin, but I am now reasured that I will be able to use it in my cockpit, provided that I dont expect it to sit in water, or bake it in the sun.

Another interesting point is that the alarm can be mounted anywhere, so that you can hear when a problem (marauding ship) is heading your way, then go into the cabin to view the radar screen and Identify the ship concerned, this is, afterall where your radio is likely to be should you need to use your radio to call them on MMSI, if you realise that you cannot escape their path easily.

So I am very happy again, Ive got a lovely piece of Kit, British built, that I know will greatly add to my safety.
Kind thanks to the gentleman from Nasa who was able to answer all my concerns,
It has been pointed out to me that a lot of items cannot be described as waterproof or people would expect to be able to leave them sitting in pools of water, or retrieve them from the ocean floor and get them replaced for new. Fair point.
 
If only it had an NMEA output, so that it could also be used to feed a standard chartplotter. I would buy one if it did, that would give me the best of both worlds; low power consumption without a plotter for when offshore and a chart overlay for interpretation when inshore.
 
I use a lot of NASA gear and I've been very happy with it, as a company they have always been very helpful and fair to me; I asked about 6 years ago whether they had any plans to incorporate NMEA and I was told that they were looking into the possiblities! - I never followed it up since.
 
The NASA AIS engine (and probably others too) does that. You wire it to give the NMEA signal to the chartplotter and your chart is overlaid with little ship symbols. Select a ship symbol and it tells you their call sign, course etc. We've just done that and were delighted to say it worked first time, and we were picking up ships 15 miles away the other side of a large chunk of land (picking up ships in the Thames estuary, from the Crouch). We also wired in an on/off switch, so we could use the AIS only when required, and that works with no complaint even when we switch it on or off while the chart plotter is on.
 
Yes but the AIS engine requires that you run a plotter. I use maxsea on a laptop and do not want to have to run it all the time when in open water just to have the AIS capability.
 
Did you use the stand alone Nasa AIS Radar or the Nasa AIS Engine to do that?
I have a chart plotter which Unfortunately is not designed to be used with AIS, but had originally wanted to use the Nasa Engine with the chart plotter.
 
I asked NASA, and got a rapid response:


Dear Sir,

The AIS Radar does not output NMEA data, we ahve the AIS Engine for this function. There are no plans to include it on the product. Understand your reasoning though.

Regards,.

NASA Marine
 
My plan WOULD be to have the Nasa AIS "radar" connected to the plotter at the helm, but mounted next to the radio for easier calling and redundancy.

Oh well Nasa's loss.

Incidently, I see you can get AIS transpoders with included aerials (VHF, active GPS) AND GPS receiver for £499 now. Maybe that is starting to look attractive.... (as it effectively gives you back up GPS, backup VHF aerial, and AIS TX as well as RX)
 
I think you will find the 425 is PLUS vat.
Nice unit (AIT250), I have one here.. very comprehensive package, beautifully built.. Quality kit.

Will probably keep the old nasa ais radar with screen for when the chartplotter is not on, just got a Raymarine E120 from the states for 1100 squids !.. thats so I can overlay the AIS on the chart, and I wanted navionics charts only.
Joe
 
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