Owners and Captains/Crews of sailing and
motor yachts are looking for ways to keep in touch via the Internet
with the business aspects of the boat, from the home office to
logistics of supplies and gear for the vessel. Internet Access also
helps out with Crew Morale. If the crew has Internet access by a local
onboard wireless system to their laptops computers, linked back to the
ships Main Internet Access Grid, then they can keep in touch with
family, friends, and take care of their own personal business affairs.
A happy crew performs better. And trust me - I've seen it - Internet
Access makes for a happy yacht crew. Often such an Internet Access is
also available to guests on yachts that do charters. It's another added
amenity that makes their charter cruise much better.
One popular method for providing Internet Access has been Cellular
based Internet Access. The technology has been improving over the years
and the cellular providers are in full swing to provide various levels
of Internet Access speed to Wireless devices such as laptop cards and
Personal Digital Assistants such as the Blackberry and similar handheld
devices.
In the past few years we've put a number of yachts on GSM Cellular
which gave them voice and GPRS Internet - using equipment such as the
Ericsson F221 and F251m units and Telular SX5e units. They provided a
reasonable, if a a little slower, Internet Access method. They
typically required a 9-pin modem (called a Serial Port on Computers)
connection to a PC (typically a desktop computer) located somewhere
centralized - and we shared that onto the vessel using Windows Internet
Connection Sharing. This allowed many boats to have their Satellite
(often Inmarsat Fleet 33, 55, or 77) also connected to the PC and then
it was just a matter of switching which connection (Cellular or
Satellite) was shared via Windows Internet Connection Sharing (ICS)
onboard the boat. We set up secure Wireless Access Points and this all
worked over them rather well. With exception of the fact that Windows
ICS tended to be flaky and would stop working, requiring the ICS to be
disabled, rebooting of the PC, and re-enabling the ICS again.

Telular SX5E

Ericsson F251m
Later on in the 2000's years - Cellular Cards for Laptops started being
available - with Verizon being pretty much first out the gate with a
Fast Internet via a PC Card (PCMCIA Card) Modem Unit. Following that
several individual users did experiments with creating a Mobile Router
for Cellular Internet Cards. One notable such project was "Stomp Box"
which the creator installed in an automobile for use on land on the
highways and streets. It shared the Internet to a laptop onboard the
automobile and basically created (probably) if not the..., one of...
the first mobile hotspots using Cellular Internet Access with Laptop
Cards.
Commercial entities such as Junxion Box and Top Global came out with
Cellular Router boxes that could handle multiple cellular providers and
the majority of available Cellular Laptop Cards - and most of them even
provided Firmware Software Upgrades that allowed them to update the
routers software and support newer cards as they came out. If you got
the right card with an external antenna jack, we could hook one up on a
yacht and connect an outside omni-directional marine cellular antenna
with a nice gain factor (gain is had by pulling in the vertical beam
width instead of wasting energy and receive capacity in the up and down
they concentrate on where the transmit and receive capability is really
normally needed) and share this Internet Access onboard a boat. These
were also linked up with onboard wired and wireless networking, using
Wireless Access Points to cover the areas the vessel wanted covered. I
also have to say that Dlink and Kyocera (I believe the Dlink is made by
Kyocera?) also came out with "single technology" Cellular Routers - but
you had to have one made specifically for the cellular carrier that you
were going to use. They are very inexpensive and provide the same
functionality typically as the other ones that I've mentioned. The only
problem is that you can't change your mind later and Switch from
Verizon (CDMA) to AT&T or T-Mobile (GSM/UMTS.)

Junxion Box

Top Global MB8000
Another new Cellular Card Router has emerged - that solves a new
problem that cropped up. Cellular Carriers and Cellular Card
manufacturers, in keeping up with computer technology, started
releasing Cellular Cards that were USB (Universal Serial Bus) and
Express Card based products. This caused a number of people a problem
either with older laptops, or older cellular routers... and including
those shopping for newer cellular routers. The Cradlepoint Company came
out with a router (which I sell and install) the MBR1000. This Cellular
Sharing Router handles the newer USB and Express Cards among other
features that it has. There's also a smaller one: Persona WiFi Hotspot
the CTR500 - of which I have a demo unit available. I've installed
MBR1000 for yachts and know how to get it done if anyone wants to try
it out.

Cradlepoint MBR1000 (see: http://www.marinetelecom.net for sales)
Ericsson W25 - The Ericsson W25 Fixed Cellular Terminal (better called
a Cellular Mobile Voice and High Speed Internet Router) came out not
too long ago and was cleared by the FCC and such for sale in the U.S.
I've been selling and deploying quite a few of these lately as well.
The unit provides 2 critical things to yachts: 1.) Voice Cellular for
the PBX or Analog Telephone Equipment, and 2.) UMTS - HSDPA - High
Speed Internet Access, with it's own built-in Wireless Access Point
(bigger boats probably still need a few more additional Wireless Access
Points added onboard to cover everywhere) and a 4-port Fast Ethernet
Switch which is the ground work for providing a wired as well as
wireless networking and Internet system on a yacht.

Ericsson W25 (See http://www.marinetelecom.net/Ericsson_W25 for sales)
I've come across quite a few vessels that take my advice (or their own
advice) and want both WiFi Hotspot Sharing Systems as well as Cellular
Internet Sharing Systems onboard for flexibility and coverage whereever
they may roam. So methods and systems have to be created to make it
easy to switch between the systems depending on which one is available
or which on is the best to use for a given location. I've done these so
if you need help please contact me. One thing that you have to watch
out for with Cellular is Roaming. The cellular bill can sneak up and
surprise you if you roam without knowing outside of the US on Voice or
Internet or both via cellular. So contact me for the skinny on how to
stomp on that little monster.
Amplifiers for Cellular - There's a lively debate going on about
cellular amplifiers and in particular a little thing called a "cellular
repeater". I'm going to hold off on mentioning company names, but
suffice it to say that the "cellular repeater" if not designed well -
may go into oscillation between the outside and inside antenna and
cause interference to other cellular (and even public service) wireless
communications. It's also been stated that using cellular amplifiers is
not liked by cellular companies. They say that they are really not
needed, because the cellular towers power-control the mobile cellular
device to keep locked onto the tower with sufficient signal. It's also
been questioned that the end user has sufficient FCC and Cellular
Provider permission to operate such an amplifier on a carriers cellular
network. So just know that if you use cellular amplifiers, you might be
told to remove it one day very soon.

DA4000

Wilson Cellular (Repeaters and Inline Amplifiers are available)

Wilson (bubble pack) 3 Watt Direct Inline Amplifier
Satellite Internet - I know this article is about Cellular Internet, so
I'm just mentioning this so that you can know that I've worked with
older and newer satellite systems as well, integrating them with a
yachts onboard network (creating such network if needed) for Inmarsat,
VSAT, and newer Fleet Broadband and Mini-VSAT systems. So if you're
getting one of those installed and you need help integrating the
Internet onboard - give me a call.
Thanks! And I hope this has been interesting and informative.