Date: Mon, 23 Nov 1998 13:13:57 -0800 (PST) From: Barry Caplin <bc@bjb.org> To: Harry Patterson <harry@visiontm.com> Cc: freebsd-isp <FreeBSD-isp@FreeBSD.ORG> Subject: Re: Wireless ISP Message-ID: <Pine.LNX.4.05.9811231309190.19685-100000@lawgiver.megacity.org> In-Reply-To: <01be16cf$2b4d9a60$055da8c0@hp.visiontm.com>
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Hi Harry,
In a previous life I was the NOC Manager at a wireless ISP. So I'm an
ISP systems guy and not an RF engineer, but I'll throw in my $.02.
On Mon, 23 Nov 1998, Harry Patterson wrote:
> I'm looking for information on the various ads I've seen for wireless ISP's
> (mostly California). The claim is T-1 speeds for app. $50.00/month. My
> questions are:
>
> 1) What equipment is used to reliably offer point to multipoint? From what
> little I can find Spread Spectrum appears to be the best technology
> alternative from companies such as WaveAccess.
We were using some kind of spread spectrum microwave equipment. I
don't know the particulars. The end user equipment was by Hybrid
Technologies.
>
> 2) How does it avoid interference from trees, buildings etc?
You don't! Each install has to be qualified.
>
> 3) What's the cost for the base equipment and customer units?
Our monthly's included the lease of the CPE. If I remember correctly,
the modem cost about $300.
>
> 4) For those that have used it, what has the reliability been and the
> effects of weather and other outside interference?
This can be a problem, but trees and buildings are far worse. Except
for extremely heavy rain, I never saw any problems.
>
> 5) Do the end users have to put up exterior antennas or is the equipment
> strong enough to stand on it's own?
Roof mounted antenna. Our install cost included this.
Barry
>
> Thanks in advance,
>
> Harry Patterson
> Vision Technology Management
>
>
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Barry Caplin US West !nterprise
Manager - Internet Systems work: bcaplin@uswest.net
Engineering home: bc@bjb.org, bc@mtiweb.com
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