On Tue, 27 Jul 2004 21:21:33 -0400, "TJM" <tjm@nospam> wrote:
>I am stuck living in rural America and that means being stuck with 56K dialup
>internet access, since I am hopelessly out of range for cable & DSL.
OK, you live in a cave. I don't but I'm familiar with the problem.
Some clue as to your location would be helpful.
>I've been
>exploring the 2-way satellite broadband like StarBand and DIRECWAY, but there
>seems to be a lot of downsides to it....mainly the high cost and limited
>download policies.
OK, so that means ISDN 128Kbit/service is out due to limited bandwidth
and high price.
>Fixed wireless 802.11 seems like the only viable and
>affordable alternative, but no provider in my area has offered this service so
>far.
Wireless providers do not just throw up an access point and announce
"we have bandwidth, who wants it?" They do surveys of towns and act
upon inquiries which revolve around marketing research. If there's a
need in the area, and the number of customers served is sufficient,
you can probably attract the attention of a WISP. I suggest asking in
the ISP-Wireless mailing list to see if anyone is interested in
providing service.
http://isp-wireless.com
If you live in an RF hole (valley), surrounded by high mountains full
of RF absorbing trees, I don't think a WISP will work. Prices for
reasonable bandwidth (1.5Mbits/sec) are also somewhat astronomical for
wireless.
What some small towns have done is purchase a T1 with ISP service and
resell the bandwidth using anything from wireless to barbed wire for
distribution. The cost of such a T1 in the middle of nowhere will be
pricy and depend mostly on the number of repeaters requied from the
neaest telco office. Effectively, you would be building your own ISP.
My guess(tm) is that this method becomes economical with about 20-30
paying customers.
>I been hearing a lot about the new 802.16 solution coming down the pipeline
>called "WiMAX".
Every new product is pure hype until the hardware appears. WiMax is
just a better 802.11b without the inefficiencies and timing problems
that limit range and performance. The power levels are the same and
the range/bandwidth equations are identical. Like all business
ventures, nobody is going to install a WiMax WISP in the middle of
nowhere without some means of having it pay the bills. It's certainly
better for WISP service than 802.11b but is not a magic bullet or
miracle cure. If anything, it will be initially far more expensive
than 802.11b.
>It is
>supposed to offer 30-mile range of service with 70Mbps throughput!
More like 30 miles or 70Mbits/sec, pick *ONE*.
The limiting factor is the tradeoff between BER (bit error rate) and
transmission rate. What all these radios do is reduce the
transmission rate when the BER climbs above a specified threshold. No
sense in sending high speed garbage that can't be used. Slow down and
the error rate decreases. So, at 30 miles, my guess(tm) is that
you'll get about 0.5Mbits/sec if there's no interference, and zero if
there's a leaky microwave oven, sodium RF lamp, utility wireless link,
plastic molding pre-heater, or outdoor event with wireless TV cameras
somewhere in the path providing the traditional interference. It's
also line of sight, which means that it won't work in your cave,
valley, or forest.
Incidentally, the previous holy grail was NLOS (near line of sight)
which methinks has turned out to be little better than hype.
Stay tuned for mesh networks, the next big thing in science fiction
and marketing hype. This also includes self configuring, self
healing, and advanced routing algorithms.
>When do you think the rural areas will be getting 70Mbps WiMAX service?
About the same time as it becomes economical to provide the service.
Whenever the FCC hears the latest great idea in spectrum grabbing,
it's always justified by providing rural service. Doesn't matter what
the service does, it's the rural communities that are suppose to get
the benifits. For example, the FCC is currently entertaining comments
on the re-use of UHF TV spectrum for wireless LANs on a
non-interference basis. It's suggested for rural use where there are
few TV stations. However, as soon as the technology is endorsed and
the licenses are issued, the technology always appears in the more
populous areas simply because it's more profitable. Bluntly, I
wouldn't hold my breath.
--
Jeff Liebermann
(E-Mail Removed)
150 Felker St #D
http://www.LearnByDestroying.com
Santa Cruz CA 95060 AE6KS 831-336-2558