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Internet Access While Sailing?
ryan schroeder asks: "My mother is sailing to Hawaii this summer and is wondering about solutions for checking e-mail. I know a cell phone modem won't work and a satellite phone sounds a little expensive. I bet someone out there had looked into this. If anyone has a direction to point me to that be great." It would be interested in hearing if any of you folks have gotten Internet access working while out at sea and what degrees of success you've had with it. Who needs land anyway? Give me a boat, the stars, working global wireless Internet and a wind to sail by!
There are only three things I know of that work well from a boat in blue water:
:-)
1. Satellite comms, preferably Inmarsat or some other well established crowd with geostationary sats. Yes, it's expensive, but kitting a boat out for that kind of voyage is _really_ expensive anyway, so maybe another grand or so won't hurt. Check out:
http://www.inmarsat.com/suppliers/index.html
Inmarsat-B may be the one - 56kb modem equiv, fits in a suitcase.
2. SSB radio, but I've never heard of anyone running digital comms over it. And it depends on weather conditions how far it goes. But, it's nice to be able to hear real live crackly voices 1000 miles from land...
3. Set off the EPIRB and when the come to rescue you tell them you're fine but could they send this message for you?
What boat is being used here? Are they looking for crew?!
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There is one quite amazing guy -- calls himself a technomad -- that seems intent on building for himself (and his current girlfriend) a human- (or wind-) powered mobile home jam-packed with electronics. He started with a bike, switched to trimaranish kayak, then to a big almost-blue-water trimaran, then back to a canoe-based small trimaran. The site is called www.microship.com and there are, basically, work diaries online -- makes for very interesting reading.
I think that of all people he should be the most knowledgeable about the issue of 'net access from the middle of nowhere. There may even be information on his site -- plenty of stuff there.
Kaa
Kaa
Kaa's Law: In any sufficiently large group of people most are idiots.
A while back a couple sailed around the world and recorded their trip through the Houston Chronicle newspaper's web site. All the stuff is still up at the At Sea site and if you take a look at the FAQ I think you'll see they sent and recieved e-mail via Inmarsat-C satellite transmission. BTW I coded up the mapping from open-source tools -- gnuplot and perl :)
You will need:
1 Wire cutters
1 RJ45 crimper
1 foot of electrical tape
300 miles of CAT5 cable
First, locate the underwater cable running to Hawaii. Use the wirecutters to strip to pierce the shielding and strip the end of your CAT5. Use the electrical tape to splice into the cable. Use the crimper to put an end on the CAT5. Now you can sail anywhere within ~300 miles of your splice. For longer distances, use a longer cable.
--
Have Exchange users? Want to run Linux? Can't afford OpenMail?
Linux MAPI Server!
http://www.openone.com/software/MailOne/
(Exchange Migration HOWTO coming soon)
On the satellite side, there is exactly one product on the market. I don't remember the name or mfgr, but you can find them in any boating gear catalog. This is a small, self-contained unit with a small keyboard and LCD display. They go for about a grand, plus you need to subscribe to service and pay per message. Not cheap, but I hear they work quite well.
The other, and much more common, option is HF/SSB/Marine Radio. Any ocean-going vessel will (or should) have a SSB radio, although you need a fairly decent radio and a good antenna for data use. If you have a General (or better) class amateur radio license, then your choice is simple: WinLink 2000 http://winlink.org/k4cjx/ is pretty much the defacto standard for amateur radio internet email. Yes, the software runs under 'doze, but it is free, and the service is also free, run by fellow ham operators.
If you do not have a General Class license and are operating on Marine SSB frequency bands, there are a number of commercial solutions that work just the same as WinLink. Unfortunately, they are not cheap, and none of them provide service any where near as good as the amateur WinLink setup.
In either case, (Marine/commercial or Amateur/Ham) you will need a radio modem to sit in-between your laptop and your radio. Which one you get will be determined by which service you use. If you go with a commercial provider, they will tell you what unit to use. If you use WinLink, there are many more options, all well documented on k4cjx's web site.
Also, if you are serious about this, I *highly* recomend that you take at least two laptops with you and that someone on board knows how to re-install both of them. Yes, your laptop will get fried, so make sure that you have an extended service policy on it! Why? I guarantee that someone will start the engine, start the anchor windless, or kick in the wind generator while the laptop is plugged in, sending a nasty spike through the electrical system and frying your laptop, or at the very least scrambling memory and corrupting the disk. Keying up 1KW on your HF radio can also do nasty things to your laptop as well.
BTW, I spent nine months as a live-aboard in the carribean, so I know all these issues only too well. If anyone wants more info, I'd be happy to provice all the gory details...
-p.
I can just see it now...
"Warning, unable to connect: Connection reset by pier"...