[MLB-WIRELESS] Hold off on buying wireless equipment for a few months!

s t stjk at hotmail.com
Mon Jan 14 13:16:20 EST 2002


>with 25 db directional at each end & good LOS around 48km and 300k/sec 
>easy.
>
>I know of a link from Frankston to the City (48km) and 300k/sec and then
>another user is 28km north of the city and links through that same access
>point to connect down to Frankson. Total link length 76 km 300k/sec.
>

I know the people who run that link, and that link is not what you
think it is. It uses different firmware in the lucent card which
enhances the card using a proprietary encryption and compression system.
300k/sec is practible using Turbocell firmware software and 25db arials. 
Standard 802.11b isn't. Its costs around $800 for that special firmware. 
150kb/sec is still the go.






>From: "Robert Farrar" <robert at secnet.com.au>
>Reply-To: melbwireless at melbwireless.dyndns.org
>To: <melbwireless at melbwireless.dyndns.org>
>Subject: Re: [MLB-WIRELESS] Hold off on buying wireless equipment for a few 
>months!
>Date: Mon, 14 Jan 2002 12:14:02 +1030
>
>
>with 25 db directional at each end & good LOS around 48km and 300k/sec 
>easy.
>
>I know of a link from Frankston to the City (48km) and 300k/sec and then
>another user is 28km north of the city and links through that same access
>point to connect down to Frankson. Total link length 76 km 300k/sec.
>
>Not Bad
>
>Robert
> > For those that have 802.11b links up, Just how accurate is this?  
>Perhaps
> > people can give me some idea of link distance vs speed?  If this is the
>case
> > I might be better to go for some of the cheaper 100mW cards for the link 
>I
> > have in mind.  The link I want to put in is 700m.  LOS is shaky as there
>are
> > some trees in the way...
> >
> >
> > > 1) 802.11b, even though rated at 11Mbit, realistically over any
> > >    distance greater than a couple of hundred feet, rarely yields
> > >    an effective transfer greater than 150kilobytes/sec, even with
> > >    high gain directional antenna. I have personally played with cisco
> > >    access points, and lucent cards  and come to that conclusion.
> >
> >
> >
> > --
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> >
> >
>
>
>--
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>




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