use of microwave oven robustness mode with a phase remodulated power supply
could, (with the right APs) slice a single channel into two non overlapping
media timewise. I look forward to playing with this if someone has a multi (2)
channel scope in the nyc area, few 100 Hz resolution ought to do just fine.
robin-david hammond
KB3IEN
On
Tue, 20 Aug 2002, Ian Howard wrote:
> Date: Tue, 20 Aug 2002 10:41:04 -0400 (EDT)
> From: Ian Howard <[EMAIL PROTECTED]>
> To: Nathanial Freitas <[EMAIL PROTECTED]>
> Cc: [EMAIL PROTECTED]
> Subject: Re: [nycwireless] RE: "Starbucks Clashes With WiFi Hobbyists
> Over Airwaves"
>
> Nathan,
>
> No algorithm per say, however, when two waves that meet, at the same frequency,
> they will have a net loss equivalent to the amplitude of the opposing wave --
> This will yield in the weaker signal being drowned-out by the stronger signal
> and the stronger signal being degraded by the strength of the weaker signal.
> Moreover, as a radio signal loses power (amplitude) at a rate that is inversely
> proportional to the distance squared, one can calculate signal strength at a
> given distance from the source. This is a gross simplification, but essentially,
> since both services are using the same frequencies they will both experience
> degradation to their signal.
>
> In an area the size of Pioneer square, there is no reason why both services
> cannot coordinate the use of their frequencies. The fact that this band is
> unregulated does not preclude courtesy and cooperation.
>
> Ian
>
>
> On Tue, 20 Aug 2002, Nathanial Freitas wrote:
>
>
> So what are the quantitative facts behind this claimed "degraded service"?
> Is there some sort of known algorithm for determining reduction in
> bandwidth/throughput based on the signal strength of overlapping base
> stations at a certain point?
>
> Thanks,
> Nathan
>
> On Tue, 20 Aug 2002, Christopher Mc Carthy wrote:
>
> > <lol>, The Register's picked it up :)
> >
> > http://www.theregister.co.uk/content/6/26747.html
> >
> > Starbuck's sells free WiFi access
> > By Thomas C Greene in Washington
> > Posted: 20/08/2002 at 09:23 GMT
> >
> > If they can sell burnt, ruined coffee at premium prices, why not wireless
> > Web access one could have for free? So goes the reasoning behind Starbucks'
> > decision to offer WiFi at $30.00 a month in Portland, Oregon's Pioneer
> > Square, where free access is already provided by grassroots outfit Personal
> > Telco.
> >
> > According to this item in The Oregonian, Starbuck's is muscling in on the
> > same channel already taken by PT, with the result that users of both
> > services are enjoying degraded performance -- only those going through
> > Starbuck's are enjoying it at a premium price.
> >
> > The company is using T-Mobile, a VoiceStream outfit, as their provider.
> > Those who desire access outside the downtown 'WiFi free zone' are welcome to
> > shell out $50.00 a month for coverage in airports and other Starbuck's
> > stores.
> >
> > As the turf war warms up, we have to wonder if PT can give away what a slick
> > marketing illusionist like Starbuck's can sell.
> >
> > If they can make billions hustling the worst coffee I've ever tasted outside
> > institutional settings, well, no doubt this initiative will go quite nicely.
> > �
> >
> > -----Message d'origine-----
> > De : Christopher Mc Carthy [mailto:[EMAIL PROTECTED]]
> > Envoy� : 20 August 2002 11:42
> > � : [EMAIL PROTECTED]
> > Objet : "Starbucks Clashes With WiFi Hobbyists Over Airwaves"
> >
> >
> > 'Lifted' off slashdot - <http://yro.slashdot.org/yro/02/08/20/0431202.shtml?
> > tid=98> , of potential major interest...
> >
> > A little quote from the article <<"If we take the stance that we're the
> > little guy and start hopping around, what happens when there are no channels
> > left?" Shand said.>> Hear hear, way to go :))
> >
> > Your Rights Online: Starbucks Clashes With WiFi Hobbyists Over Airwaves
> > Posted by timothy on Tuesday August 20, @03:29AM
> > from the dr-evil-at-play dept.
> > fobbman writes: "Portland Oregon's Pioneer Square (the heart of downtown)
> > has had free WiFi access provided since February by Personal Telco, which
> > is a local group of computer hobbyists. Now Starbuck's is planning on
> > offering the same service on the same band in the same area for $29.95 a
> > month, according to this story in the local fishwrap
> > <http://www.oregonlive.com/news/oregonian/index.ssf?/xml/story.ssf/html_sta
> > ndard.xsl?/base/front_page/102975810817580.xml>. Without regulation or
> > licensing, and with WiFi growing, this could become a common problem."
> >
> >
> > --
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> >
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