Wifi - SailNet Community
LinkBack Thread Tools
post #1 of 4 Old 03-21-2007 Thread Starter
Join Date: Mar 2007
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0

Hi all
I am new to this so excuse me if this is not the way to make a post.
I am interested in a way to connect my laptop to a WIfI area, I have heard of the Syrens onboard WIFI, is it any good, does anyone have any experience in using one and most importantly does it work.
Are their any other options?
It’s to be fitted to a steel sailing boat.
Best regards
Michael Allo
mallo is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 4 Old 03-21-2007
Wandering Aimlessly
PBzeer's Avatar
Join Date: Nov 2002
Location: Cruising
Posts: 21,876
Thanks: 0
Thanked 98 Times in 95 Posts
Rep Power: 16
Your cruising grounds are a factor in getting internet on the boat. To pick up wifi, you're going to be somewhere near populated areas, most likely in cell phone range. If so, I think you would be more satisfied with wireless internet through a cell phone provider. Also, picking up a wifi signal is not just a matter of your end, but the transmitting end as well.

Ontario 32 - Aria

Free, is the heart, that lives not, in fear.
Full, is the spirit, that thinks not, of falling.
True, is the soul, that hesitates not, to give.
Alive, is the one, that believes, in love.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
- Website & Blog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PBzeer is online now  
Quote Quick Reply Share with Facebook
post #3 of 4 Old 03-21-2007
Larus Marinus
Idiens's Avatar
Join Date: Jan 2007
Location: Brussels
Posts: 1,756
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
I have only had success with WiFi in marinas, and even there, with line of sight to the transmitting antenna, I have experienced problems (multiple masts multipath I think). This year, I am trying a better and separate antenna at my end to see if it helps.
Idiens is offline  
Quote Quick Reply Share with Facebook
post #4 of 4 Old 03-21-2007
Telstar 28
sailingdog's Avatar
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 18 Times in 14 Posts
Rep Power: 15

The Syrens Wifi system is just a packaged marine antenna, bridge/router. It is a good way for them to make a good deal of money for not offering a whole lot. You could do just as well or better by getting a PCMCIA WiFi card with an external antenna jack and mounting an antenna on the boat... like a 90˚ 9dB gain planar antenna... and aiming it manually. The 90˚ coverage is the minimum you'd want, as the boat will swing a little. You could go with an omnidirectional, but the gain would be lower. The 200 mw PCMCIA cards are the ones you want to get for this type of use.

The advent of the 802.11n specification, which is not yet finalized, will improve range quite a bit. The pre-specfication gear for it is already out there, but as it is fairly new, unlikely to be deployed in many areas yet. It uses multiple radios, versus the single radio in the 802.11a/b/g standard equipment, to increase throughput and range significantly. The 802.11 pre-n gear is backwardsly compatible with 802.11b/g gear, but with no real benefits.

You do need to be near someplace with a broadband internet connection that has a WiFi access point for either of the setups to work...neither will do much for you on the open ocean or in remote anchorages.

The other option, as PBz has mentioned is connecting via a cellular telephone network. However, outside of the US, most of the cellular data plans are based on the data sent, not a flat monthly fee... so they can really add up. I've used T-mobile's cellular network for my internet connection when I was in the process of moving, and it's not all that bad.... faster than a dial-up modem, but slower than my current fiber optic connection.

The only reason a steel boat would affect any of this is if the antenna was down below, inside the boat... and it would basically punt... steel eats WiFi signal really nicely.

BTW, I've run a WiFi network at distances over a mile using 18dB gain parabolic grid antennas... but that was with two terrestrial, non-floating endpoints. The record for WiFi is somewhere over 40 miles IIRC.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Last edited by sailingdog; 03-21-2007 at 10:13 AM.
sailingdog is offline  
Quote Quick Reply Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
WiFi on the Boat? Sailpilot Living Aboard 42 03-18-2012 10:37 AM
WiFI and VOIP in the Caribbean wetdirt General Discussion (sailing related) 12 11-17-2007 05:40 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome