The WAP-11 access points are probably the cheapest ones with usable antenna connectors. But as Robin notes you can solder connectors on to any AP. I would still recommend using Soekris boards running pebble Linux as these will give you the most flexibility in routing.
I'm CC'ing nycwireless since it's a higher volume list where someone may have a better answer for you. -- Daniel << When truth is outlawed; only outlaws will tell the truth. >> - RLiegh On Thu, 20 Nov 2003, R.D. Hammond wrote: ]Sorry for not being more active lately. I will address the quandries in ]you most recent email in order: ] ]I am not in the know when it comes to part 15 wireless equipment these ]days, sorry. Part 97 offers more power and reliability. Been working those ]bands lately. ] ]You can desolder any antenna and replace it, normaly there is a higher ]loss asociated with antennae installed via jacks/plugs than directly ]soldered to the output. So make sure you are getting a new antenna with ]much higher gain than the internal antennae offered, to offset any loss ]that will occur. 15db gain in what direction, sector, planar, ]uni-directional ? ] ]Dont be suprised if ISP quality links require some redandancy (like ]alternate polarizations) or even, YIPES, wires for some of those longer ]backbone links. Some technology is still so new its not yet 100% reliable. ] ]APs via ethernet are much better than a PCI bridge hooked up to 20 feet of ]LMR400 cable. to conduct umaves well a coaxial cable needs to be over ann ]inch thick. ] ]The issue of network topology must be addressed once we know the purpose ]of your network. will it be routing to the outside DARPAnet or will it be ]a freestanding network on its own? What will be the typical usage of this ]network? web surfing, lan to lan gaming? private email? how important is ]security? ] ]What protocols do you intend to support? I take it tcp over ip version 4 ]is desired, as it is the norm for wifi. Do you have a big enough IP space ]for you users? do you intend to provide them all each with public ip ]version 6 addresses? ] ]Where do you want to choke bandwidth? Between one user and everything ]else, between one user and the upstream connexion, between two users? ] ]How many connexions will exist to how many ISPs? Will they all run to the ]same place or be distributed throughout the metro-wan ? ] ] ]``Whip me, beat me, make me use ipchains'' ] ]http://web.databit7.com./KB3IEN_resume.html ] ]Robin-David Hammond KB3IEN ] +1 -718 383.25.82 ] [EMAIL PROTECTED] ] www.nyc-ares.org ] ] ]On Tue, 18 Nov 2003, Esteban Ribicic wrote: ] ]> Date: Tue, 18 Nov 2003 13:15:56 -0300 ]> From: Esteban Ribicic <[EMAIL PROTECTED]> ]> Reply-To: "NYCwireless - MAN (Metropolitan Area Network) Cloud List" ]> <[EMAIL PROTECTED]> ]> To: [EMAIL PROTECTED] ]> Cc: [EMAIL PROTECTED], [EMAIL PROTECTED] ]> Subject: Re: [nycw-cloud] equipment ]> ]> hi! i keep on thinking on doing the wire-less network. after looking forward the best ]> equipment at lower cost i found this d-link access-points that works in the 2.4 nad 5Ghz ]> frequency, so more compatibility features would work. ]> ]> http://www.dlink.com/products/?pid=14 ]> ]> the main problem is that the antennas they provide are non detachable..what do you hthink ]> about this? all the access-points i saw in that price range are 15dbm power.. ]> ]> for the clients, on each home setting a pci card with a omnidireccional | direccional antenna ]> applyed on the front porch or the garaden, whatever to get more gain..i think i must work ]> ]> http://www.dlink.com/products/?pid=16 ]> ]> that pci cards i found the better choice.... ]> ]> does anyone knows any other product? for the network i thougt to propagate a dhcpd leases ]> from each access points, with a default gateway in my linux router..then with some php/perl and apache ]> stuff doing the accounting of users..the other choice would be using pptp (vpn service with radius accounting).. ]> ]> dont knwo yet..maybe i use both :) ]> ]> one question...suposing i have 3 of those access-points..and on each 5 clients..if they try to send packets ]> between them those packets would reach my linux server (their default gateway) or the paquet would just go ]> between the access points? in that case i wont control the rate of each user on the "metropolitan network".. ]> ]> well..any help? comment? ]> thank you very much! ]> ]> On Mon, 27 Oct 2003 12:13:58 -0500 (EST) ]> Daniel Thor Kristjansson <[EMAIL PROTECTED]> wrote: ]> ]> > ]> > Oops I misspelled Soekris. ]> > http://www.soekris.com/ ]> > ]> > Something like the net4511 is a small computer on which you can load ]> > pebble linux ]> > http://www.nycwireless.net/pebble/ ]> > ]> > This means you can put routing software on the AP so that you don't need ]> > each access point to be on a wired network, they can simply be set-up in ]> > ad-hock mode and find routes to the internet. ]> > ]> > You could also use something like the net4521 and use one radio for the ]> > access point, and another to connect the node to an internet connected ]> > node. ]> > ]> > I would do the latter in this case because it means less setup for the ]> > user and with only 10x10 blocks you can connect all the AP's directly to ]> > a head node using directional antennas. ]> > ]> > What is the funding structure? Perhaps if the city is paying for the ]> > bandwidth you could sell businesses a Soekeris 4521 set-up with antennas ]> > and software to both connect them and provide WiFi to the nearby residents. ]> > Then they could be responsible for maintenance of that node (i.e. you ]> > would win in the long run even if they only paid a token $25-50 for the ]> > equipment.) ]> > ]> > -- Daniel ]> > << When truth is outlawed; only outlaws will tell the truth. >> - RLiegh ]> > ]> > On Mon, 27 Oct 2003, Esteban Ribicic wrote: ]> > ]> > ]thinks for helping me out! ]> > ] ]> > ]Its a small town, let say it has 10 blocks x 10 blocks. Its in a valley in a ski ]> > ]winter park. Buildings are not tall at all. ]> > ] ]> > ]The construction materials are not concrete, as the houses are very small so they are brik of wooden made. ]> > ]The thing it worryes me is the snow and the high humidity. For example, Cisco Aironet 1100 series only ]> > ]support temperatures from 0 ~ 40 degrees and a max humidity of %90! ]> > ] ]> > ]I would like people not to use built in antennas, if it is neccesary, well..i'll prefer to use ]> > ]antennas connected to my access points so its easyer for the people ho lives there. ]> > ] ]> > ]i coundt find much about "sokeris access points" googling, any link? ]> > ]so, as higher are my access points more gain ill have? i thought using ]> > ]one access point for each 500/700 ft radio, but as you told me, the ]> > ]fact the user with his laptop inside his house have connection varies a ]> > ]lot, in the worst case, i should install on his house an 'extra ]> > ]antenna' on the outside of his house, that's what you meant by "You can ]> > ]get 802.11b yagis for $25 from dbiplus for > public wifi uses, or you ]> > ]can build them yourself for less" right? ]> > ] ]> > ]thank you really much! Steve. ]> > ]Ill try to send you more info about the town. ]> > ] ]> > ] ]> > ] ]> > ]On Sun, 26 Oct 2003 13:57:30 -0500 (EST) ]> > ]Daniel Thor Kristjansson <[EMAIL PROTECTED]> wrote: ]> > ] ]> > ]> ]> > ]> What is the size/layout of the town? ]> > ]> Are the buildings about the same height? How many stories? ]> > ]> What are the construction materials? ]> > ]> (Brick lets more WiFi signal through than reinforced concrete.) ]> > ]> ]> > ]> Do you want people to be able to use built in antennas or is it ok if ]> > ]> they need directional antennas to connect to the network? ]> > ]> ]> > ]> If the buildings are about the same height you can install a soekeris"al ]> > ]> access point with pepple linux on top of the taller buildings with high ]> > ]> gain omni-directional antennas. They can be spaced 1000ft+ apart, and ]> > ]> still connect to each other without an additional radio with ]> > ]> directional antenna. At that spacing people will need a directional ]> > ]> antenna to connect. You can get 802.11b yagis for $25 from dbiplus for ]> > ]> public wifi uses, or you can build them yourself for less. To use built ]> > ]> in antennas you need a node every 300 ft or so, even if they use a good ]> > ]> WiFi card like the ORiNOCO Silver card. For the Access Point you can ]> > ]> build an omni out of LMR-400 cable, which you will need anyway. ]> > ]> ]> > ]> If you have a map of the town with building heights we could help you ]> > ]> make a deployment plan. Also, MIT is deploying a mesh network for their ]> > ]> students, you might want to look at their pages. ]> > ]> ]> > ]> -- Daniel ]> > ]> << When truth is outlawed; only outlaws will tell the truth. >> - RLiegh ]> > ]> ]> > ]> On Sun, 26 Oct 2003, Esteban Ribicic wrote: ]> > ]> ]> > ]> ]Hi, im trying to deplay a public wi-fi network in Argentina. ]> > ]> ]We live in a small town (it has less than 5k familyes). Wich kind of equipment ]> > ]> ]would youi recomend us to use? i thought in 802.11(b|a|g) compliant and of course, at ]> > ]> ]the lowest cost posible. Each concentrator would handle an 400 feet area right? ]> > ]> ]any help? pieces of advice? we are linux users of course. (most of the clients not ofcourse, ]> > ]> ]they are windows users). ]> > ]> ]Well, any hepl,link,pdf,etc would be helpfull ]> > ]> ]Thanks, Steve. ]> > ] ]> > ] ]> > ] ]> > ]> ]> ]> -- ]> Esteban Ribicic ]> Network Operation Center ]> UOL Argentina ]> Florida 537 - Piso 6 Buenos Aires, C1005AAK, Argentina ]> +54-11-4321-9110 ext. 2503 - Directo: +54-11-4321-9107 ]> [EMAIL PROTECTED] ]> http://www.uol.com.ar ]> Mucha mas Internet ]> _______________________________________________ ]> nycw-cloud mailing list ]> [EMAIL PROTECTED] ]> http://lists.nycwireless.net/mailman/listinfo/nycw-cloud ]> ] -- NYCwireless - http://www.nycwireless.net/ Un/Subscribe: http://lists.nycwireless.net/mailman/listinfo/nycwireless/ Archives: http://lists.nycwireless.net/pipermail/nycwireless/
