Domain: wmux.com
Stories and comments across the archive that link to wmux.com.
Comments · 8
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Re:How much demand is there?Actually I was just running down the list of things I think people want and saying "if you deliver these with wires, wireless, or avian carrier people will want it -- if you try to sell bandwidth just because of the way you provide it, people will not be so interested".
Ahhh...cool.
:-)
Stuff like some cablecos are doing "you can't get to port 25 except on our routers...nobody can get to port 80 at your home...".
Ahhh, I see. I'm familar with that too. Many of the WISP's I associate with are usually pretty laid back and will allow open access on their networks, within reason. I'm referring to the small, regional WISP's.
For 1Gbit/sec, or even 3-5Mbit/sec? No wonder nobody stays in that business long! :-)
LOL! Actually, that's for a minimal connection which could be 256kbps symmetrical.
:-) The 1Gbps is possible via Western Multiplex's Tsunami line but this is definintely not a residential solution considering the units can run, for both links, about $250k.
I agree with no one staying in business very long charging $29 for a 3-5Mbps connection. Many WISP's charge for a CIR of 256kbps to 512kbps with a MIR up to 3-5Mbps, depending on whether they're deploying FHSS or DSSS gear, with the latter being faster and usually cheaper but more susceptible to the WEP security issues we hear about.
If you're curious about pricing, an excellent WISP map I know of is at http://www.bbwexchange.com/wisps/index.htm.
HTH!
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45Mbit licensed or unlicensed gearCheck out Western Multiplex's line of T1-T3 point-to-point solutions. You should be able to get 8 T1s over a 45 mile link. I know that their DS-3 (T3, 45Mbit full duplex) gear is around $18,000 per end, but it doesn't have the range that you need, because of the free space loss.
You will need a clear fresnel zone of around 300 feet (back of the envelope figures) above the tallest obstruction in the path. So you are probably talking about a 400+ foot tower, or something like a 150 foot tower on a 300 foot hillside (cheaper).
A 45 mile link will be hard to align properly, you will want to hire professionals. Cell phone companies use this kind of gear and go these distances regularly, for their cell-to-cell backhauls.
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I don't see why not!Of course the exact setup will depend on factors such as terrain and which licensing restrictions you are subject to, but providing you can find locations for repeater stations (which can be solar powered, so you don't need a mains electricity supply) this should be feasible.
Here are some URLs you might find interesting: HPWREN (featured here recently) have a 45mb backbone using western multiplex tsunami kit, and 802.11b access points. They use solar power and batteries to power some backbone nodes.
Some other people using mostly 802.11b kit who will have some information you can use: BAWUG PersonalTelco.net NoCat.net Freenetworks.org
Using 802.11b or similar tech, you should expect each wireless hop to add about 5ms of latency, maybe a little more depending on distance. You can quite easily build a repeater by connecting two bridges together by a X-over cable. You could probably do this with Linksys WAP11 or similar, but over this type of distance you will find it much easier to use something like the high-spec version of Cisco Aironet 350 bridges (the 100mW versions will push the signal a lot further - 25 miles with 24dBi antennas - you can use Cisco's own, alternatives include Superpass (based in Waterloo), HyperLinkTech and others.
Aironet bridges let you set the distance of the link which modifies timing parameters (a slight problem with standard 802.11b over long distances), and their security is better than WEP.
There's plenty of homebrew opportunities for antennas and other related kit, although I guess they're probably of more use to people who don't have a budget to play with (: There's a collection of links on this page with a particular focus on homebrew kit.
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Re:wISP Tower feeds?
You want a 1Gbps wireless bridge that can run up to 50 miles, LOS? Check this out: http://www.wmux.com/tsunami_gig.html
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Re:802.11 over long distances
Take a look at Western Multiplex gear sometime. Works with both the 2.4GHz and 5.8GHz spectrums up to 50-60 miles at speeds up to 1Gbps.
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Re:Q: Radio or IR?There are, gnarly, but they're not as stable as the RF gear. Many companies are offering laser-based solutions with capacities to handle up to 622Mbps but only for distance to 200-300 meters. They're also prone to weather interference (fog, snow, rain, etc.). They're great for campus environments, but not for long-range links.
Don't know much about the IR stuff.
I do know, however, that Western Multiplex has a 1Gbps RF solution (it may be released by now) that provides a point-to-point connection for up to 50 miles or so.
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Re:Cloud, point-to-point, or both ?I would imagine that they would be using direct sequence instead of frequency hopping because it supports higher bandwidths. FYI the 802.11 standard uses frequency hopping with the fastest radios @ 3mb (BreezeCom Pro.11 series I believe). The 802.11b standard uses direct sequence which is 11mb.
Most people will use the 802.11b standard because it is faster, however in some cases 802.11 is desirable because it can support more users without frequency overlap.
Western Multiplex has some cool toys too.
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Wireless (microwave) gigabit an option?
Western Multiplex makes radios from 2Mb/sec to 720 Mb/Sec full-duplex, with ethernet 10/100/Gig interfaces. No more latency than a wire network; no bandwidth fall-off. If you get license clearance for higher power, they can do line-of-sight over 40 miles. No license up to 15 miles. Yes, you'd have to build a chain of repeaters, but it is possible. How remote? They make a climate-hardened box with AC, a heater and DC battery backup for harsh environments. Who uses them? Many cell phone companies (Cellular One) put them on mountains where no fiber or wire trunks could go. They might be able to help design a custom solution for you. Call them and ask: 408-542-5200