Domain: sflan.com
Stories and comments across the archive that link to sflan.com.
Comments · 9
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Bridging the Wireless gap
I've tried using consume.net and sflan.com. I even used to enjoy Ricochet. I was unable to connect to either free ISP because their node maps were either innaccesible or just wrong. I have visited the consume.net page many times and the node database has not worked for at least a year. At SFLan.com they actually have pictures of base station locations, yet when I have sat in immediate proximity to a base station, no signal at all is available. The problem with the anarchistic, volunteer, free wireless lan projects is that they do not, and perhaps cannot, provide even the most basic quality of service. It should not be easier for me to "hack" (and I use that term very loosly) into an unsecured wireless base station than to connect into a legitimate station. As well, the free base stations tend to be in houses and offices. Although I spend quite a bit of time in my house and office, that someone twenty miles away has a working wireless setup really does not amount to a hill of beans. I think that most of us here on Slashdot would give several major bodily organs to have true pervasive free wireless internet, if only in places like SOMA or SoHo. For even this pipe dream to sober up, we need to vastly increase the signal strength of the wireless access points. Instead of concentrating on building wireless ghettos, we should try to lobby our congress, and for you non-Americans your legislative bodies, to increase the broadcasting strength of our wireless access points (wap). Perhaps it might even be prudent to have two legally allowable types of waps. A legally non-open hub facing the current power restrictions and a hub open to the public, by law, that would have ten times the signal power. That would cause this movement to gain resonance.
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Fun, Useful, But Hardly A Threat
802.11b freenets are great and I by all means encourage more people to open them up and run them (I have a little one running), but they are hardly a realistic threat to ISPs. The simple fact is that WiFi just doesn't have enough range and penetration to make significant coverage economically feasible ad-hoc. It takes a lot of placements to get decent coverage, particularly when leaves, many walls, and most other obstructions attenuate the signal a great deal. Hell, look at all the money Metricom had to pump into getting decent coverage (different tech, but similar range issues).
If you look at the major freenet networks (such as SFLan and BAWUG here in San Francisco or others), their actual coverage is really quite tiny. Sure, you can find a good number more by war driving around the city, but that hardly gets to the point that were making a dent in the ISP revenue stream. While I'm optimistic on their expanding and the radios improving, what percentage of SF residents realistically would have usuable signal strength in their homes in 1, 2, even 3 years out?
If you do decide to run a freenet, get an external antenna with some decent gain, though WAP antenna connectors have to be proprietary, most are just reversed DNC or the like. You get a pretty shocking increase in range and penetration even with a 3db omni and a lot less sensitivity to the wireless card's orientation (which is all to often flat and sub-optimal for pickup). A lot of the freenet spec out relatively expensive hardware (< $1K for SFLan), but a little antenna hacking can get most any WAP to reach out for semi-decent range.
Regards, RJS
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Re:Wireless internet available for free!Yep, there surely are many community-based wireless networks. Some of them are:
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Ricochet is good, but....
Richochet and others may become unnecesary if 802.11b takes off - look at SFLan for an example of how community-based free wireless networking is being implemented in the bay area.
One example is Apple's Airport, but PC cards are available too. It will be cool when you can beam MP3s down to the empeg in your car before work :-) -
Re:Excellent idea.Hi, ThohT. I've visited your site several times and am impressed with its content and your service offerings. A question I have for you is, how can you financially support your network? Please understand that I'm not wanting to sound like a smartass; I'm simply trying to understand how it'll stay operational without funds.
I'm sincerely impressed with the various community wireless networks that are around (yours, http://www.pdxwireless.org, http://www.sbay.org, http://www.sflan.com, http://www.seattlewireless.org, etc.) and would love to gain a better understanding about their operations. I'm also in the process of starting a fixed wireless service and would really like to gain a community feeling (almost a "cult" feel to it) around it, if I can.
But, I also want to make enough to support the network and not lose my shirt in the process.
Any advice you might offer would be most appreciated.
Thx much!
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My Research So Far (Includes Access Points)
I'm looking around at both cards and access points with linux compatibility, here's what I've found. It seems 802.11b wireless networking is definitely getting cheaper and a number of decent products have been showing up at half previous typical prices. D-Link and SMC are leading the low end of the market with decent quality products and at least stated linux support and Orinico/Lucent and Aironet/Cisco are the leaders if you want a more robust feature set for your access point (in particular, support for external antennas).
PCMCIA Cards
- For cards, the cheapest decent card I've been able to find is the D-Link DWL-650, which can be had for around $120 from a reputable web retailer. However, while D-Link claims linux support in their FAQ, I can't find a driver to download from their FTP and a google search didn't reveal anything elsewhere. Haven't really looked hard, but dubious with that in mind. I should also note that the D-Link claims shorter ranges (1,000 ft. v. 1,500) than most of the other cards/access points, but I suspect that has little real world relevance.
- The next best option seems to be the SMC 2632W, which has linux drivers available for download (haven't tried them out, though). It tends to run about $20-30 more from similar sources, but looks like a good product and appears to have better support.
- After that, its a tossup in the $200-300 range from the major networking manufacturers. I don't see a clear advantage of any of them over the cheaper products, but haven't looked at power consumption levels and comparison tests from major publications aren't new enough to include these products (that I've seen).
Access Points
For those who are also interested in what's going on with access points, including linux support on configuration:
- Currently thinking about the D-Link DWL-1000AP which goes for a little under $300 if you look around for a good web retailer. Main downside is a lack of linux support in configuration software (needed to set static IPs by address), though this isn't a big deal for me as I run a mixed network. Too bad it doesn't have a nice mini-web server for management like my HP printer (LaserJet 2100NT). They list telnet support in the data sheet, but its not clear to me if you can telnet to the hub to make changes
... - Another potentially good and cheap model is the SMC 2652W, but supply seems to be limited on this right now. Again, no linux configuration utilities, but you can console connect via RS-232, which the D-Link doesn't have. SMC has linux drivers available for its PCMCIA card now.
Unfortunately, neither of these have the antenna adapter that some of the Lucent Orinoco (formerly WaveLAN) access points feature, but they also don't cost $700+ (its more for the 2 radio model). Not really much of an issue for household use (unless you have a multilevel apartment with concrete flooring), but if you want to cover multiple houses, roam around farther outdoors, or set up a free wireless LAN (slashdot discussion) for people in the area [SF for me] (I could run a really popular access point, living across the street from Moscone). There are a number of other good access points from Cisco/Aironet, HP, Intel, etc., but these are the standouts for price/performance in my research.
Regards, RJS
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Bay Area wireless projects
Shamelessly lifted from BAWUG 's links page, where there is lots of information about wireless hardware and software:- Greater San Francisco Bay Area
- Burning Man (Black Rock City, NV)
- United States
- Outside the U.S.
- Canberra Wireless Network (Australia)
- Elektrosmog (Sweden)
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Not that cool.
I had a look at this - still runs to around 400/month with pacbell costs.
I've been looking at www.sflan.com. It's a shared 10Mb/s radio network in SF. And best of all Free! -
SFLan
Check out www.sflan.com for an ISP in San Francisco based on wireless ethernet founded by WAIS inventer Brewster Kahle.