You may remember my enthusiasm for GrandCentral, a free online voice mail, PBX, and one-#-for-life scheme with fantastic potential for cruising boaters (as well as mere mortals). In that March, 2007, entry I even hoped for/predicted the startup's purchase by Google, which happened almost immediately. It remained functional, but very quiet, all these months. (I never did use it as a real contact number, because I like the Maine numbers I have, but did use its slick call recording abilities for tasks like testing the Cobra noise cancelling cell mic.) Well, finally GrandCentral has emerged as Google Voice, with several added features like voice-to-text, conferencing, and Skype-style cheap foreign calls (only from whatever U.S. phone you're near). Let's test the voice-to-text; if you click on that widget above, you can call my number for free; you'll hear a voice message I custom recorded to go with the widget, and the message you leave will be converted to text and sent to me via e-mail or text message (along with a link to your recorded message). I tried it once myself and it worked very well, but you may talk funny...
I was surprised when Tim Flanagan went all Glen Beck on underwater lights last week. It hadn't occurred to me that "no boat owner with an ounce of sense" would drill a hole below his or her waterline just to "make the water glow pretty colors". In fact, senseless me has long considered going for the dramatic effect above (compliments DeepSea Power & Light) on Li'l Gizmo, which has become fairly reasonable and easy thanks to gear like OceanLED's Amphibians. You'll note that they are surface mounted, and hence only need a cable hole through the hull (they also purportedly run cool enough to use on deck). But, heck, I'd consider putting bigger holes in big Gizmo's transom if the LED and thermoplastic casing technologies reach the right cost/performance point, which is where they seem headed. Any underwater fitting deserves especially carefull installation, but I don't think fixed underwater lights compare, danger-wise, to true thru-hulls which involve a forever hole protected only by an often open valve and a hose. Has anyone heard of an underwater light causing a sinking? And while I won't argue that anyone really needs underwater lights, they sure can be beautiful...
Gizmo schematics, key to troubleshooting and updating
Mar 28, 2009
Something I was very pleased to find on the ever more likely future Gizmo is extensive documentation on its DC and AC wiring. In that fairly random sampling above you can see a conceptual diagram of major systems, detailed panel flow charts and layouts, and -- most impressive, really -- a hand drawn schematic made when a second 30 amp shore power input was added sometime in the boat's relatively short history. There's much more, including cable by cable wire chase assignments and voltage drop calculations, and most of those cables are physically labeled. Thank goodness, as this is the aspect of the yacht I'm the dumbest about. I won't feel like Gizmo's truly able master until I better understand her electrical systems, and what to do when troubles arise. Plus, despite being thoughtfully and carefully put together in 2000, there's so much useful electrical and electronic updating that could be done in 2009...
Well, ain't that a bitch! Thanks to the vigilance of Steve Roberts I now know that an online "store" called Discount Marine Electronics is posting Panbo entries as though "it" created them. Actually all they're doing is putting up the same first picture and paragraph anyone can get via XML feed or email (see Subscribe button top right). But Discount Marine Electronics is cutting out the "read more" link, so readers really don't get the whole jist of the entry but may be fooled into thinking that the diligent staff of Discount Marine Electronics is testing gear and writing about it on a regular basis.
Like so many CruzPro instruments, the CS-60 fits a 54mm hole, comes round or square, and has a three-button interface (with a surprisingly deep menu structure behind it). But what's a "Clocked Switch"? Actually that "gauge" contains four solid state switches each capable of handling a load up to four amps and each programmable to its internal clock in two ways...
Zounds! When we last checked in on Steve Roberts, he was installing a Simrad AP20 with a rudimentary NMEA 2000 network, and waiting on a Furuno NN3D MFD12. It was pretty standard stuff for a guy who's into "geek expressionism, gonzo engineering, gizmological expeditions, and applied technomadics." Well, check out Steve's current vision of the network that will eventually reside on his 44-foot steel pilothouse cutter Nomadness. I think he changed his mind on the Furuno -- too bulky for his helm -- and is still undecided on the plotter/radar front, but, wow, has he been thinking about communications and system monitoring/control. Steve explains the whole diagram here, but let me just add that all those nodes lower right are based the interesting open source Arduino I/O project...
Lest you think I'm just about big diesels, check out the good Annie G.'s auxiliary propulsion power system. Years ago I bought the cheapest Minnkoda electric trolling motor I could find (visible on Annie here) and moved the control switch to that battery box where the 'custom' wooden shift/throttle gives me five speeds in forward and three in reverse. None exactly makes the 18' iron-keeled sloop jump, but the rig is handy for getting into the Camden Inner Harbor slip I often use. But I always had a problem knowing if I had enough charge to use the motor as needed. That was neatly solved last summer with the addition of that solar panel and most especially the Argus Analyzer Battery Bug...
Thanks to the April editon of Sailing World, I now know about the interesting and nearly free iPhone app MotionX-GPS. It's more a GPS than a plotter, and not specific to boating, but, as you can see above, it's got some boating fans. MotionX purportedly uses the iPhone's accelerometers to improve GPS performance, it supports open source mapping, and it was developed by a company founded by well known competitive sailor/geek Philippe Kahn. Unfortunately I can't try it on my iPod Touch because the it has no internal GPS, and no way to attach one (darn you, Apple!). But there are some iPhone marine apps I am trying, or will soon...
I think I got this diagram right, and I think it's important to understand if your boat might end up with more than a few NMEA 2000 powered devices on its network. As discussed on Monday, the popular 'light' (or Micro) size NMEA cables only contain 22 AWG power (and data) wires. Its well insulated power wires are apparently perfectly safe (despite some internecine standards organization hubbub on that score) but they simply can not carry much DC juice very far. Electrical resistance is dependent on wire size -- DC especially so (hence the fascinating "War of Currents") -- and the few DC wire tables that even include 22 guage don't look good. Which is why some manuals, like Garmin's below, go to some trouble regarding powertap placement...
Sigh, that's my first NMEA 2000 network, circa Spring 2005, when there wasn't much more than Maretron to hang on it, and not many boaters were interested anyway. Now many more N2K devices have joined these on the lab's snaking backbone (and there are many others I'd like to try), N2K is an active topic on Panbo forums and elsewhere, and the network for my maybe-new Gizmo boat is going to be a serious undertaking. The Standard has come a long way, and methinks it's time to reveal a little drama that went down along the way. Yes, those gray Micro cables and the yellow powertap did incur drama, even soap opera...
So it turns out that within my big old head still lurks the boat lust of a younger man, even when confronted with tangles of wires and other system complexities. No problem, I thought to myself, I can deal with this stuff! But was that the irrational voice of a love stricken boy speaking? I've been missing from Panbo for a couple of days because en route to NYC yesterday I checked out a boat I'd been admiring online...and fell much deeper under her spell. Today I've been consulting trusted advisors who know more about this sort of boat, and the used boat buying process, than I do. And I'd like to know what Panbots think...
No, the new FLIR M-Series and its controller are not the same size, but here's my attempted graphic point: That sexy dual-payload pan and tilt camera casing -- at only eleven inches tall -- is smaller than your eye might presume. While that's still taller than the competitors' search light casings, the M-Series can pan +/-90 degrees, has a horizontal swept volume equal only to its seven inch maximum diameter, and it purportedly still fits under most open array radar scanners. FLIR spent a lot of time developing this casing for the mid-size yacht market, and intends it as a platform for future developments, but the big news in Miami was that the initial M-626L model sports a 640 x 480 pixel thermal imager. Now that sounds pretty low res by current video camera standards, but in the thermal world it's such a big deal that the government puts certain limitations on its use...
If graphing, say, wind speed or depth data on a little Garmin GMI 10 is useful -- which it is -- how about visualizing every desired vessel sensor trend on a big monitor? Krill Systems has been showing off demo screens like the one captured above and intends to include the feature in a coming update of its SoftDisplay. And Krill has kept past promises...
I'm pleased to report that wind speed and direction data from Garmin's GWS 10 NMEA 2000 wind wand shows up fine on all the N2K instrument displays and MFDs in the lab. (There is a small problem with the GWS's air temp and pressure data, which Garmin will probably fix quickly.) The only oddity is a substantial response lag on the Raymarine ST70 (but I understand that a major software update of that unit is coming soon). Using the GMI 10 or a Garmin MFD like the 5212 you can correct the vane's offset (if the masthead install wasn't perfect) or dial in speed and direction dampening factors if you don't like the "auto" modes (I do, so far). Aside from the ST70, all displays responded instantly to such calibrations. While it's nice that sensor/display mixing is possible, Garmin deserves applause for the wind screens it created for the GMI 10. The Garmin coders might consider "borrowing" that rectangular gauge design from Raymarine -- which makes maximum use of the screen -- but Raymarine, and Maretron, ought to "borrow" a lot from Garmin...
Furuno USA has finally released the SC30 Satellite Compass, after putting it "through strenuous testing" and "modifying the software to meet our testing requirements." Heck, I thought it performed phenomenally well last June. The SC30 is NMEA 2000 device, and an interesting aspect of its launch is Furuno's excellent PDF diagrams illustrating all the ways it can be installed. Today I recommended the Installation Guide in the back of the Maretron catalog as a good reference on N2K wiring, but it does tend to portray 2000 backbones in a more linear way than they really have to be. In the diagram above, for instance, the Furuno FI-50002 junction box is serving as the the entire backbone, power feed and terminators included, and all the other devices are being dropped off (to the 6 meter max). The diagrams also reveal a Furuno translator box developement they haven't talked about yet...
Marine WatchMate is a boat security system that can include up to four cameras which can be monitored on board, on a computer ashore (via the Internet), or even on certain cell phones. The cameras can be IP based, or regular analog pushed through an A/D converter. The one I saw demoed in Miami, above, was analog and it worked fine, but apparently the IP cameras can even be panned and zoomed from your cell or PC. What a world...
GoMOOS sounds like some sort of Maine college cheer, but is actually the Gulf of Maine Ocean Observing System, a nonprofit I appreciate for many reasons, but most especially its Penobscot Bay Weather Buoy F01. I love Buoy F. Whenever I want, it offers me near real time wind, sea, current, temperature, and even visibility conditions, plus trends for each over the preceeding hours. Which I use to reality check the current marine weather forecasts, and thus often make better informed decisions about what sort of boating I can do. Meanwhile GoMOOS data is helping to improve the weather prediction models, and advancing ocean science in many other ways. Good sensors are so important. Just like on a boat, the fancy screens (or fancy forecast graphics) don't mean much without accurate data feeds. So why the hell are GoMOOS and other regional weather buoys are getting pulled for lack of (fairly trivial) maintenance funds? And would you believe that I came across a pretty good answer on the Comedy Channel?
We had a peek at the ST70 Plus a while back, but I got to see them on the water in Miami, and, besides, there's a hot conversation going on about ideal instrument displays over on the forums (warning: gobs 'o' geek talk). My photo --- taken in glaring Florida sunshine, with on-screen crap you normally don't notice included --- doesn't do justice to the display's brightness, VGA resolution, and deep color saturation, but it might actually be more realistic than the glamor shots now available at Raymarine.com. The latter do, however, show many of the Plus's display choices and color palettes. Or "Colours" as they spell it in the King's English, and as mentioned in my shot above. Which does illustrate a bit of the system architecture I was originally confused about (and which is also explained in the now posted manuals). It seems like a flexible and powerful architecture (and hence inherently confusing), and probably a winner...
