Wireless Internet access - SailNet Community
Reply
 
LinkBack Thread Tools
post #1 of 12 Old 01-24-2005 Thread Starter
Member
 
Join Date: Aug 2001
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
 
Wireless Internet access

I''m trying out a WLAN adapter (D-Link DWL-120+) on my laptop. It plugs into the USB port and has an antenna device that goes searching for signals (some free I''m told) to hook up to the internet. It''s working great right now in Ayamonte, Spain with a router on top of a building only a quarter of a mile away and my searching antenna on top of the deck outside.
But since I got it I hear that I can do the same thing with a PCMCIA card which does not have a cord, it just plugs into my PC card slot and so it''s not as bulky to carry around an airport etc. It''s also chaper here in Spain. Has anyone had any experience with these? Which one is better?
Is it really possible to get access (free preferable) around the Mediterranean using one of these? Or can I get on a plan with my mobile phone (that''s cheap) and then just get another SIM card when I get to a new country? What''s the best thing to do? I''m new at all this.Thanks.
Barbara (seagypsywoman@yahoo.ca)
Seagypsywoman is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of 12 Old 03-07-2005
Sailboat Reboot
 
svzephyr44's Avatar
 
Join Date: Jun 2000
Location: On Board
Posts: 625
Thanks: 3
Thanked 50 Times in 44 Posts
Rep Power: 16
 
Send a message via Skype™ to svzephyr44
Wireless Internet access

This may help:

WLAN uses one of two protocol subsets of the 802.11 standard - b and g. There is an a, but it never took off. The standard is international to a point. The specific country by country changes are how much power (Watts) the transmitted signal can use and if you can use gain antennas or not. Decoding this a bit: The better your antenna, the further away the access point can be from your boat. An antenna on deck is most likely going to do better than an antenna on your laptop (802.11 signals are line of sight.) In addition, if you are permitted to use a gain antenna (like a cone shaped directional antenna in your current location you can reach out to an access point that is further away.

All 802.11 signals run on discrete channels. Your software listens in turn to each of the discrete channels and tries to make a connection. Once it makes a connection there are two general ways your connection can be blocked. First, the connection may be encrypted (e.g. WEP and some other encryption schemes) Second, the connection may be open but access to the internet is blocked by a firewall. Usually that means that you will get a screen asking for money.

Depending on where you are you might or might not be able to get a free connection to the internet. As a general rule you want your antenna high and visible (not in your pcmcia card) and directional if possible. You also want to make sure that you are transmitting with the maximum authorized power.

Last edited by svzephyr44; 04-17-2007 at 10:19 AM.
svzephyr44 is offline  
Quote Quick Reply Share with Facebook
post #3 of 12 Old 03-08-2005
Junior Member
 
Join Date: Feb 2005
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Wireless Internet access

So, what equipment (make, model ..etc) do you recommend to be used with a laptop? I am planning a trip from Lake Ontario to Florida, Caribbean and hopefully to the Virgin Islands.
Thanks,
Alex
amunk is offline  
Quote Quick Reply Share with Facebook
post #4 of 12 Old 03-08-2005
Member
 
Join Date: Oct 2001
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Wireless Internet access

Consider purchasing a wireless PC card that has both an internal antenna and a connector for an external antenna. When you are at anchor or docked, an external antenna will allow you to connect where a laptop below would not. There are numerous on-line stores that sell antennas and the cards that work with them. I recently ordered something from www.sharperconcepts.net but there are many others.

FYI, most of the cards you''ll find at Best Buy or the like will not allow connection of an external antenna.
i670684 is offline  
Quote Quick Reply Share with Facebook
post #5 of 12 Old 03-10-2005
Junior Member
 
Join Date: Feb 2005
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Wireless Internet access

I am not able to find a laptop card that has an external connector for an antenna. The card you mentioned in your post was that a PCI card for a desktop? Do you know a specific model for a laptop?
amunk is offline  
Quote Quick Reply Share with Facebook
post #6 of 12 Old 04-14-2005
Junior Member
 
Join Date: Jul 2004
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Wireless Internet access

I have been using the AT&T wireless service with their GPRS netwoek and it works fine for coastal cruising, basically wherever you have Digital Cell phone reception
ahmetb is offline  
Quote Quick Reply Share with Facebook
post #7 of 12 Old 03-19-2006
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
There are quite a few 802.11g cards that allow the use of external antennas. Another important feature to look for is a card capable of 200 mW transmission. Most cards use a 100 mW radio, but there are several that have 200 mW radios instead.

For antenna design, a good cheap antenna is the "Pringles Cantenna" which can be made for under $10.
sailingdog is offline  
Quote Quick Reply Share with Facebook
post #8 of 12 Old 03-20-2006
Junior Member
 
Join Date: Mar 2006
Location: Hawai'i
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
One more thing....If you are connected to a free network then it is unencrypted, most likely someones private network with no security. This means anything you do on the internet is in the public domain and easily read by anyone. If you bank on the internet, purchase things with your credit card, etc. then you are broadcasting this information to anyone who wants to listen. Kind of like posting your private information on a forum and hoping no one takes advantage of you. It's your call.
Spike_dawg is offline  
Quote Quick Reply Share with Facebook
post #9 of 12 Old 03-21-2006
moderate?
 
camaraderie's Avatar
 
Join Date: May 2002
Location: East Coast
Posts: 13,877
Thanks: 0
Thanked 4 Times in 4 Posts
Rep Power: 16
     
Amunk...Try the Oriico Gold Card with External antenna input for your laptop:
Excerpt from CNET review...
The Orinoco World PC Card also features a unique external antenna connector .... Simply attach an indoor antenna such as the $70 Proxim Orinoco Range Extender model to the end of your PC Card via the included cable. You can then place the external antenna up high on a desk or a bookshelf and increase your wireless coverage.
http://reviews.cnet.com/Proxim_Orino...4.html?tag=toc
camaraderie is offline  
Quote Quick Reply Share with Facebook
post #10 of 12 Old 03-28-2006
Telstar 28
 
sailingdog's Avatar
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 15 Times in 12 Posts
Rep Power: 14
         
Quote:
Originally Posted by Spike_dawg
One more thing....If you are connected to a free network then it is unencrypted, most likely someones private network with no security. This means anything you do on the internet is in the public domain and easily read by anyone. If you bank on the internet, purchase things with your credit card, etc. then you are broadcasting this information to anyone who wants to listen. Kind of like posting your private information on a forum and hoping no one takes advantage of you. It's your call.

Actually, if you're using a site to bank or purchase things, most likely they're protected with SSL-encryption and you should see a little padlock in your web browser.

However, for e-mail, unless you use a provider, like Gmail, that allows you to use ssl-encrypted e-mail server access, anything you write in e-mail will be sent in cleartext, including your user name, password, e-mail server account name, etc.
sailingdog is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in









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
Internet access? alexNB Living Aboard 11 07-06-2007 10:55 AM
Wireless electronics outfitting phowson Gear & Maintenance 0 09-14-2004 11:57 AM
Web Page Access Denied? psness General Discussion (sailing related) 1 03-26-2004 06:27 PM
Internet Cafes flicker General Discussion (sailing related) 5 01-14-2004 05:24 PM
Living Classroom via Internet? mattyt General Discussion (sailing related) 0 10-21-2000 06:56 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