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Helpful Resources Below are Evaluated sites that have important information on all aspects of communications . This site is interesting as its a list of hot spots around the world. They have almost 6,000 cybercafés listed in 161 countries. You can add a cybercafé to the list, and help build the community.
Radio Licensing
YachtCom
USCG Navigation Center Radio Rules & regulations
Global Maritime Distress Safety System. Radio Operators guide
Companies specializing in communications product and setup.
Three Phone rental Companies (an
alternative to owning)
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Staying Connected while onboard
These days it seems almost everyone wants to be connected even when sailing/boating along the coast. Gone are the days of getting away from it all. Good or bad, here we look at Wifi and Cell options for internet access.
Article overview and quick links What is the best way to get online, either use your cell phone or use a Wifi connection? We will look at two examples of cruisers and the way they use the internet. Then we will look at the technology behind Cell Phone data systems and also Wifi data systems so we understand the technology. After we have basic understanding we will look at Cell phone boosters. We will also look at increasing the Wifi signal that you can get on your lap top so you can get Wifi reception out on your anchorage. We will look at more options to getting connected. Then once we have connection well look at Skype the VOIP protocol that allows you to call home for free from anywhere in the World where you get an internet connection. Then we go to the conclusion & other reading.
How do long distance cruisers communicate Here are a couple of examples of cruisers and the mixture of communications they use. Joe Boyle round the world cruiser has given the readers at SetSail his secrets on staying connected See his discussion on WiFI Here. Joe uses this PCMCIA card from Broadband Express. Which costs $399 for this setup including the antenna. A PCMCIA card is about 10 times the strength of the wireless that comes
in your laptop, 300mw V 30mw.
Here is a different solution for a cruiser on the East Coast US. Jeffrey Siegel. This is Jeffrey's components for his Cellular solution.
Quote. "My general finding is that WiFi isn't worth the effort of
all the special hardware any longer. This is a sad conclusion. I've been
using much of this WiFi hardware over the last three years with stellar
success in the beginning. I believe that there are only two reasons (maybe
three) to install and use amplified WiFi hardware: - You want access to
WiFi connectivity at your home marina with known access points and the
ability to connect to them." Cell phones data plans work on what is called 2.5G signals and now the latest 3G or third generation. 3G provides high speed, broadband mobile internet access. Data plans are generally separate from voice plans. T-Mobile and AT&T/Cingular operate on GSM (GSM is popular worldwide) Verizon and Sprint operate on CDMA For the new faster 3G service which is ever increasing in coverage; AT&T operates on GSM & HSDPA Verizon & Sprint operate on CDMA & EV-DO. A broadband card from someone like Verizon or AT&T/ Cingular or Sprint can get you internet access for about $50-90/month. You can still get this service even up to 20 miles offshore, in some places. Data speeds of 230kbps on these type of cards can be attained.
Wifi or wireless fidelity is more commonly associated with hot spots, marinas and places close to shore. You use the one installed in your laptop when you go to an internet cafe. Wifi uses radio technologies called IEEE 802.11b and the newer 802.11g to transmit from an internet connection to the host computer. Hot spots refer to the areas around the internet connection that the 802 signal sends out. A hotspot is a small coverage area that provides internet access with a range of approx 300 feet. A hotzone is a large coverage area providing internet access up to 3 miles from a distribution point. This diagram of the Syrens Wifi setup shows us the typical equipment used in setting up a Wifi installation that will greatly go beyond the wireless device internal to your laptop PC. These set ups allow you to get Wifi even out on an anchorage, up to 3 or 5 miles away.
CruiseNet™ is your own secure, high-speed, wireless network. You can send e-mails, surf the net, check online weather, and more… right from your boat. CruiseNet gives you high-speed uploads and downloads so you can send photos, music, and other files quickly and easily. Dual high gain antennas work together using performance enhancing antenna diversity. Data speeds of 3mbps can be attained. CruiseNet works on the EV-DO cellular network, i.e. Sprint, Verizon and Alltel for a subscription of $60/month and some 12* faster than a PC card. CruiseNet is fast! It’s many times faster than dialup, and higher Quality of Service than PCMCIA card-based systems that lack the power to maintain adequate connections, particularly in remote locations. Linksys 3G Afloat Mobile Wireless Router This is a cheaper option at $278.
Set up a wireless workspace anywhere you go on the Sprint PowerVision network. The new Linksys Wireless-G Router for Mobile Broadband enables you to share a mobile broadband Internet connection, anywhere that a 3G Network is available. Wifi out on the mooring, Manufacturers
Getting online with any of our Marine Wireless Bridge
systems is as easy as plugging a standard network cable into the Ethernet
port on your computer. Your computer doesn't have to have its own Wi-Fi
adapter, or any other special hardware. The Marine Wireless Bridge does
all the work, delivering the Internet to the computer just as if the
computer were plugged into the wall at an office. Syrens 802.11 Wifi
Range is 3 to 5 and even 10 miles for the larger setup. $1895 and $599 for Syrens Lite. distributed geosatsolutions
Pushing outdoor range and functionality to
its limits, EnGenius offers the latest in outdoor multipurpose Access
Point / Client Bridge devices, the EOC-3220
EXT. The EOC-3220 series brings you the maximum range with its 400mW
high wireless output power, and the flexibility you need for adaptable
deployments such as industrial grade outdoor enclosure, antenna options,
and 802.3af Power-over-Ethernet (PoE) certification. Features such as
802.1x, WEP, and WPA provide security. Experience the best in outdoor
wireless connectivity today with the EOC-3220 EXT In a nutshell Skype connects two computers via the internet for voice communications and even with video. The VOIP protocol is what makes this happen. The software is free to download and use. I know friends who swear by Skype and Joe Boyle about also does. You need a computer with internet capability like one of the systems above and the Skype software installed. Most people get a headset so they can talk to the other end without the computers speakers. You can get the headset off the Skype web site. Skype even has a book for dummies in its store. I like the books for dummies not because I am a dummy but that the book is laid out in a quick to understand format.
High-speed data connections provided by EV-DO (Sprint, Verizon) service with upload/download speeds ranging from 400-700 Kbps and capable of reaching up to 2 Mbps. Low monthly fee and unlimited access to the Internet, email, and messaging. In-motion, two-way access to MSN TV service directly on your vessel’s TV screens Wireless keyboard and remote for complete control of MSN TV service; 3W signal booster and external antenna to provide extended range and stronger signal strength Probably one of the more expensive systems. TracNet 100 System and Whip Antenna $2,395 plus subscription $60-80/month.
We can see that Cellular can give us great range, but nowhere near the data transfer speeds of Wifi. On the Other hand Wifi has great speed (54mbps) but very little range offshore.
There are some new products on the market that combine Cell and Wifi and more being developed. We will look at these at a later date as they come on the market The advantage of these is that they will look for the better signal as one will not be best under all conditions.
Check the blog from Alan Spicer for more involved systems.
This book is a complete guide to all forms of communication at sea. It examines the international marine use of cell phones, satellites, amateur radio, and email, cutting through the jargon and sales hype to enable readers to make the right choice for their needs. Comprehensive appendices on radio procedure, tables of radio frequencies and weather broadcast times provide invaluable reference information not available from any other single source.
Developed by the United States Power Squadrons, the world's largest private, nonprofit boating organization, Marine Amateur Radio is a complete guide to the use of ham radio for two-way and network communications among boats and between boats and shore stations. Briefly, succinctly, and clearly, this sturdy handbook lays out the advantages of ham radio for boaters. It explains how to get an operator's license, how to select and install a receiver and antenna, and how to use the radio for voice and Morse code communications with other boats and to shore--including inexpensive telephone patches to home. It also shows readers how to link up with marine voice nets for weather and safety communication.
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Links to Communications section
Other Communications newsletter topics VHF
Glossary of Terms AP LAN WAN Azimuth Bandwidth Baud Footprint SMS Short message service aka text messaging. VOIP AIS IMO MARPA MMSI SAR DSC |
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