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#61 |
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Registered User
![]() Join Date: Dec 2007
Location: Grand Cayman
Boat: Lavranos 39 S/v Continental Drift
Posts: 71
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[. for instance if an object of a certain size gets within a specific proximity to my vessel. . . anyway, you get the picture.
I'd like to see a radar that can do this. Your asking a lot from a radio wave bounicing off something. I have a raymarine C70 and the blip on the screen may be a cruiseship or a sailboat with good radar reflectors. My advice is anything capable of giving you a blip should be avoided. Alarms can be sounded that a blip is on srceen. I have 2 laptops, both able to interface to the nema bus as Backup to everything else but use dedicated equipment for each job, they can all talk. My autopilots(2) can talk to my 2 gps's and wind, but you still need paper as back-up. Power consumption and reliablity being paramount. All the electronics on my boat have failed at some time, including the compass lite at 3am in a sqall ( this was really annoying) but only one at a time. IMhO spend your money on lots of good solar panels over wind generators, I'd gladly trade my wind generator for 2 more panels. In the caribbean solar works well. btw. remove passwords on start -up a wet keyboard can ruin your day learn all you can about amp/hours cheers Brad |
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#62 |
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Registered User
![]() Join Date: Jul 2007
Location: Pittwater, Australia
Boat: Dick Carter 33, S/V Sunny Spells
Posts: 12
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A chartplotter at the helm is the only way to go
I have a chartplotter on the helm on S/V Sunny Spells as well as the ability to run a laptop with Software-on-Board, using the C-Map cartridges from my Navman Chartplotter (S.V. Sunny Spells · Navigation Systems).
1. The laptop draws around 4 to 5 amps. The chartplotter, autopilot, AIS, instruments - in fact everything else - draws less than 2 amps when it's all running. This single one fact rules out the laptop for primary navigation. 2. A chartplotter really comes into its own when navigating around obstructions, making landfall at night, or when avoiding traffic using radar or AIS. The rest of the time you can plot a grid reference on a map. So really, you need it at the helm. A laptop can't do that unless you want to risk it getting wet. 3. You can now buy a small colour chartplotter with AIS for well under $1000 (Navman), and I'm considering fitting one as backup in the nav station so I can check on it when I'm off-watch at night. Running the laptop is not an option because of the amp-draw. 4. Chartplotters, in my experience, are very reliable. How often does your "Windoze" laptop freeze, crash, restart... I wouldn't bet my life on a laptop! I always carry a laptop, but it primarily gets used for planning, for writing my blog and keeping in touch via e-mail. It's also good for troubleshooting NMEA issues... |
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#63 |
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Registered User
![]() Join Date: Oct 2007
Location: San Antonio, TX/Corpus Christi, TX
Boat: 1990 Macintosh 47, "Merlin"
Posts: 722
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I've got both. The laptop is just about unusable. Seriously, the software crashes all the time (maptech).
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Bill Streep San Antonio/Corpus Christi, TX |
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#64 |
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Registered User
![]() Join Date: Oct 2008
Location: Richmond, VA, USA
Posts: 1
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gmalan,
What kind of software or hardware do you use for "troubleshooting NMEA issues"? Dale |
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#65 | |
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Registered User
![]() Join Date: Jul 2007
Location: Pittwater, Australia
Boat: Dick Carter 33, S/V Sunny Spells
Posts: 12
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Troubleshooting NMEA issues
Quote:
My Brookhouse multiplexer has a USB output, so I run that to my laptop. The laptop recognizes the multiplexer as a COM (serial) port, running at 9600bps, so I just use Hyperterminal (included with Windows) to view the incoming data stream. Let me know if you need more detail and I can provide more info offline as we'd probably drift off topic...
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http://www.svsunnyspells.com |
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#66 | ||
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Moderator
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Quote:
Making a test setup with a short cable that you know works would be the best way to test devices. Quote:
__________________
Paul Blais s/v Bright Eyes Gozzard 36 37 15.7 N 76 28.9 W |
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