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  #31  
Old 03-25-2013
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Re: Standard Horizon Matrix AIS+ GX2150

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Originally Posted by chucklesR View Post
It also puts a name on it, and alarms at a set closest point of approach - all without monitoring nor having to interpret a radar screen (i.e. it is almost stupid proof).
Yes, and another very useful feature is knowing where a ship is headed. Is it heading for the south bay anchorage, or is it about to turn into the Oakland channel?
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  #32  
Old 03-25-2013
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Re: Standard Horizon Matrix AIS+ GX2150

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Originally Posted by MarkSF View Post
Yes, and another very useful feature is knowing where a ship is headed. Is it heading for the south bay anchorage, or is it about to turn into the Oakland channel?
Having sailed twice in SF Bay I can see where its so very useful just lijke NY Harbor, multiple channels, multiple anchorages etc.

Here on the Chesapeake or the Delaware River, there are no multiple choices or channels, just one major channel the length of the Rivers, Plus the number of vessels in SF habor and NY harbor make the Delaware of Chesapeake look like lightly used country road in Montana.

If I lived and sailed in SF I would have both radar ( for the fog) and AIS for all the ships, tugs, and fishing vessels
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  #33  
Old 03-25-2013
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Re: Standard Horizon Matrix AIS+ GX2150

Two places where I have found AIS data extremely / uniquely useful: The first was crossing the gulf stream from the Bahamas to Florida at night. We reached the GS sometime after midnight. At any given time there were anywhere from 3-10 ships travelling at high speed on essentially perpendicular courses top ours. We have radar but do not have the $800 fluxgate compass needed to gain the benefit of the MARPA features (which I presume provide an estimated COG and CPA for designated targets). So, the AIS was the primary source of that info. Knowing that a ship which is still 4-5 miles off is going to pass at a great distance (without having to engage in a lengthy exercise in tracking it) is extremely useful and allows you to focus on more immediate / higher priority concerns. Additionally, at one point the "boat name" feature was particularly useful when we were trying to decipher the source and purpose of some oddly colored lights a couple of miles off. We could not pick up the red / green or house lights -- but instead saw a mirage of colors orange / green. When we saw the boat name was a "Disney Cruise Ship XYZ" we not only knew the reason for the lights which were visible but also that it was clear ahead of us by a safe distance.

The second time, was entering Charleston Harbor single-handed at @3am. I was extremely tired and the "stupid proof" features which Chuckles mentioned were of heightened importance. While there were probably no more than 4-5 active targets (not idle or going away) at any given time and there were dozens of ships in the anchorage, the pilot zone and transiting the channel. They all lit up the radar (which again without MARPA is not useful for judging course and CPA without substantial concentration on each target). The AIS allowed me to ID that "X lights" by Green 5 is an "idle tanker" while Y lights is an "outbound freighter". It didn't keep watch for me -- but it made the process of identifying and responding to the visuals manageable. Even though Charleston is well marked, there was a lot of traffic and also a series of pretty complicated ranges (or so they seemed at the time). I would have been very hard pressed to manage that process along without the AIS.

Finally,I read the comments in this thread about a yacht in transit having "no business talking to the shipping traffic". At night, in relatively close quarters, I disagree entirely. If everyone is aware of each other's presence and clear on each others intentions -- fine. But if there is any uncertainty, a simple call can make all the difference in the world in avoiding a stressful situation (and a lot of talk) later. Entering Charleston, I kept waiting to see the red green of a crossing vessel appear -- but only saw the red. The AIS gave the vessel name, and a 15 second radio contact informed me that he was clear ahead when I expected him to cross my stern (and was preparing to alter course to clarify my intentions and speed the transition). If I had simply tried to avoid him, it would have made the situation significantly worse. The radio call avoided that and I am sure the shipping was as happy as I was to avoid close calls or unnecessary stress.

Anyways . . . I really do like my Matrix 2150. But, as they say on the internet . . . YMMV
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Re: Standard Horizon Matrix AIS+ GX2150

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Originally Posted by RobGallagher View Post
Tomorrow is the last day of the Defender sale. They have what I believe to be a good deal on this.

I could use a new VHF.
All the reviews I could find sound pretty good.
I know it only receives AIS and the screen is small.
I don't need to broadcast AIS and I doubt I will even bother trying to connect it to my small chart plotter.
I don't go out very far and would only really need it if I got caught out int the fog or the occasional night sail.

Someone care to talk me out of it? I could live with the relic I have now and wait another year or buy something basic, solid yet inexpensive, or even just upgrade to a new floating hand held with GPS and DSC.

This thread will self destruct in 24 hrs.
Hi,
not sure how long this was posted but in Europe the radio is the 2100 and I fitted one 2 years back. I admit I have o/p'd the AIS to my Euronav Seapro 3000 running on an old Dell but it is really good. A great radio (as are all the Standard Horizon sets) and the little screen is not that bad. PLUS you can select a contact and call them using DSC calling straight away. A cool bit of kit and worth having. We are in the French waterways at the moment and even though the plotter won't give us the inland charts, we can 'see' large barges coming our way just by there AIS signal. Great stuff AIS and even better when crossing the English Channel. Hope this helps. My problem is that my ancient Garmin 75 has stopped feeding GPS nmea out after working fine for years. I have checked all the connections etc but the radio just does not get the GPS any more. any ideas?
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  #35  
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Re: Standard Horizon Matrix AIS+ GX2150

They sell the 2100 and 2150 here in the US. The main difference is that they improved the connectivity on the 2150 for use with chartplotters like the Lowrance HDS 5 and 7m that only have one serial port.

If you don't need the extra connectivity, you can get great deals on the 2100.
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Re: Standard Horizon Matrix AIS+ GX2150

Thanks for that, I was fed some bum info. My 2100 is a great bit of kit but the old Garmin 75 that feeds NMEA to it seems to have forgotten how. I have checked the connections between GPS 75 and the 2100 and they are correct. The rig worked up until the winter when we laid up and went home. Just got back to the boat in France and this is one of the re-commissioning jobs to sort out. Also the GPS75 thinks it is August 1993 but the time is correct. Any ideas?
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  #37  
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Re: Standard Horizon Matrix AIS+ GX2150

If it stopped working at the same time that the August 1993 problem began, I can't help - except to predict the purchase of a new handheld in your future...

or how about a GPS puck that would be dedicated to the job, for some extra redundancy?
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Re: Standard Horizon Matrix AIS+ GX2150

PS I was just reading this book which includes the French waterways, then all the way to the Black Sea :

The Unlikely Voyage of Jack De Crow: A Mirror Odyssey from North Wales to the Black Sea: A J. Mackinnon: 9781574091526: Amazon.com: Books The Unlikely Voyage of Jack De Crow: A Mirror Odyssey from North Wales to the Black Sea: A J. Mackinnon: 9781574091526: Amazon.com: Books



Interesting, hilarious, and very well written.
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Re: Standard Horizon Matrix AIS+ GX2150

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Originally Posted by MarkSF View Post
Yes, and another very useful feature is knowing where a ship is headed. Is it heading for the south bay anchorage, or is it about to turn into the Oakland channel?

I get the same information from VTS CH14.
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