Panbo reader and offshore sailor Jon pointed out a possible downside to the Raymarine LifeTag MOB system that I hadn’t really picked up on (edited for brevity): “Curiously, this battery information [seen in the brochure crop above] is lacking from the installation and operating guides—I would want to know this before heading offshore on a two week passage. The system does warn you when the batteries go low, but unless you planned for it you would be unlikely to have the odd sized battery on board. Also, there is mention of the tags powering up/down automatically, but the information seems to suggest that the tags will only power down by shutting down the whole system [true]. OK for a daysail, but with that kind of battery life you would like to power down the tags for the off watch crew for example. The MOBi-lert system has a connected charging pod, when the tags are inserted in the pod the system recognizes where they are and puts them to sleep. On that system each tag is tracked individually, so you can check the status of each: #1 is charging, #2 is active, #3 has a low battery, #4 is overboard and so forth."
When I visited ACR last October, I got to write up the R&D department’s nifty GPS simulator but not the nifty new GPS-assisted PLB that was being tested in its “oven”. Well, now it’s official; the ResQFix got FCC approval today and will ship in February. ACR managed to make it 35% smaller and 25% lighter than its already compact and successful AquaFix GPS I/O model, plus goose up the 12 channel GPS to -136 dBm sensitivity for fast starts in bad places, and they’re bringing it to market for $750, less than the old I/O. You gotta like all that, not to mention its “full functional self-test of internal circuitry, battery voltage and power, 406 MHz transmission and GPS acquisition.” Here’s more detail at Landfall Navigation, and here’s a full picture with included float bag. It seems to me that the perfectly accessorized person overboard would have a proactive alarm system in one pocket, and a PLB like this in the other. Then a thoroughly equipped yacht could try to home in on his/her 121.5 MHz signal while the GPS and 406 MHz transmitter prepare SARSAT to send in the pros.
The Lowrance press release claims that “the iWAY 600c is the first portable navigation device to offer dual routing capability, allowing consumers to navigate both highways and waterways”, which I don’t understand as Garmin has done that nicely for some time. But that’s not to say that the 600c isn’t an interesting and unique portable-sized car/boat navigator. How’s about a 30 gig hard drive almost filled with U.S. and Canada road maps, hi res sat photo maps of metro areas, 5.5 million POIs, Lowrance’s own NauticPath U.S. charts (hopefully fixed), and some 3,000 Enhanced U.S. Lakes (there is a European model too). Which leaves 5 gigs free for MP3 tracks you can play using the unit’s built in “full spectrum FM modulator.” All is this displayed and controlled by a 5” VGA touch screen for $800 list with 12 and 110 power supplies, suction mount, and USB interface included. The 600c does come out of the automotive division—which is probably why I didn’t hear about it until now (thanks, Barry!)—and while the press release says “waterproof”, the spec page says “completely sealed to prevent internal corrosion.” At any rate, it’s supposed to ship in February and I’m on the test list.
Iris PC Radar is a relatively new product purportedly able to "interface as a slave or display-only with almost any radar antenna, and at present can control Raymarine, Kelvin Hughes and the Simrad/Koden/Anritsu family...soon to be more". Moreover, "its 8-bit digitization gives far superior picture quality and sea clutter performance compared to ordinary boat radars", and it incorporates a target tracker with AIS input and S-57 chart overlay (screen below, bigger here). Iris is currently marketed for harbor surveillance and is also integrated into the interesting monitoring and control system FT NavVision, but--head's up, integraters and developers!--owner Ledwood Technology is "looking for partners to sell and continue to develop the radar." My sense, by the way, is that 2007 is going to be a significant year for marine radar.
It’s just been announced that Raymarine and Remote Knowledge have inked a deal to develop a Ray branded communications product. Remote has been fairly quiet since I wrote up their initial RK3000 product back in my January, 2005, PMY column (this part below not online for reasons unknown), but—man-o-man—it’s not too hard to imagine how their CANbus/N2K and sat/cell comms technology could be married beautifully to Raymarine systems.
A comment in the Velocitek S10 entry reminded me of this DeLorme Blue Logger that I tested a couple of years ago. It’s a pretty powerful little gizmo for the money, but one thing I didn’t get into in the short review was the annoying file format it logs into. As I recall I had a devil of a time getting the data into non-DeLorme mapping programs, but that issue may now be easily solvable with some of the conversion programs we’ve discussed (though I haven’t checked). Apparently I also missed the fact that the real time Bluetooth NMEA 0183 output does not include the WAAS corrections, as discovered by a PMY reader. I don’t know why DeLorme did that, or if it’s still true.
As noted yesterday, the LifeTag man overboard system really shines when interfaced via SeaTalk to an appropriate plotter, like the E-Series shown above. The data here is being generated by NemaTalker down in the Panbo Test Facility (aka my basement shop), but the E doesn’t know it. It thinks we’re tootling along near Schoodic Point until I walk the LifeTag more than about 30’ away from the base station, or plunge it into a bucket of water. After a 10 second delay, the buzzers go off and the E goes into MOB mode, establishing a new GoTo and zooming in as far as it can to include both boat and man-in-a-bucket. Again the install was simple, three SeaTalk wires for power and data, no set up. And the manuals are good. Now, as noted in part one’s comments, LifeTag won’t help you home in on the victim, and frankly I was surprised by the figure Russ dug up of 95% success if a GPS MOB point is established. The mermaid id he referenced sounds interesting, and I know there are other intriguing products. But I don’t think any work so well on an integrated system basis…if you have compatible Raymarine gear (well, excepting NKE). It would be nice if there were effective NMEA 0183 and 2000 MOB messages and LifeTag used them. Do note, though, that Ray’s system does have a 12v output for triggering “appropriate emergency systems”, though I’m not sure what they are (anyone?).
I still maintain that shutting down the Loran system is a red herring, but the USCG has asked for comments on the subject, and hands are wringing. Here, for instance, is a short piece called “Loran’s Last Chance?” on AVweb. Follow the link where the author writes “The UK has a similar [Loran] system and is also pondering whether to keep it or not”. Not really, you’ll find; what the Brits are actually thinking about is building a new eLoran system!
Nonetheless, it seems prudent for any one who wants a redundant electronic positioning system—and you should!—to register their opinion. And the government has made it easy (though not so easy to give you full links). Here’s the drill: go to http://dms.dot.gov and do a simple search for docket item 24685. You should get to the screen above, which gives you access to the Notice itself plus the comments coming in. Unfortunately the TXT versions don’t word wrap, but the PDFs read fine. Try Robert Gardner’s for some good dope, and I’m hoping my own comment, submitted early this morning, will go up soon. Comment Submissions, button at top above, is a really easy form, and very little ID is required. (Nice work, DOT!)
For more info on Loran, the Wikipedia entry is excellent, and it also got me to an amazing PhD dissertation on the subject just completed by Wouter Pelgrum. He’s the guy who got dizzy on a Massachusetts clover leaf demonstrating how accurate even the somewhat improved current Loran system can be. Now, I’m going to do more testing on the Si-Tex eLoran, already looking good; you think about telling the USCG that we need this capability.
Raymarine introduced this LifeTag man overboard system last February, but then couldn’t actually start shipping it in the U.S. until November. These things happen, but it does tend to diminish a new product’s reputation. Well, I’ve been testing LifeTag, it works exactly as promised, and it deserves attention. One thing I particularly like is that—unlike some other safety gear, EPIRBs and life rafts come to mind—you don’t have to worry if it will function when you need it. LifeTag is what might be called an “alarm on failure” system; once on, the easy-to-tote tags regularly communicate (via ZigBee) with the base station, alarming if the connection breaks, or if just the tag breaks. The basic stand-alone system shown above was trivial to install and learn. The buzzer sounded if I wandered too far away or pushed the “help!” (or “wake up, matey”) button, plus you can disarm the alarm with the tag, and the multicolor LED tells you what’s going on. All nice, but even better is hooking LifeTag into a Raymarine SeaTalk network. More on that, and other considerations, tomorrow.
There’s no question that some boaters out there, even pros, are misusing electronics, which is why we have terms like “radar assisted collisions” and more recently “computer assisted groundings” spoken only half in jest. Now the January issue of Seaworthy magazine identifies a whole category of marine accidents they’re calling Electronically Aided Collisions or EACs. Seaworthy, aka “The BoatU.S. Marine Insurance and Damage Avoidance Report” is a terrific publication, I think. Using the vast boots-on-the-ground research conducted by BoatU.S. adjusters, the editors present the real hazards of our past time in a calm, useful manner. They have a sense of humor too, for instance titling a sidebar on a mast accident “It’s not the falling that hurts, it’s the stopping,” and including this quote in the EAC feature:
“My wife used to refer to the boat’s nav system as my $10,000 video game. After I bent both props and rudders on some rocks while I was showing her how the system worked, she started calling it my $20,000 video game.”
