Re: Electrical Question

["David Leathers" <daleathers@earthlink.net>]

William thanks for writing that it was informative.  I did have a question.
I have not looked at wireless in some time as my network at home is wired.
But I thought that wireless was mostly line of sight only.  From what you
are doing that must not be the case anymore?  How about inside of a house
can the wireless signal go from room to room and to different levels in the
house? Is it as reliable as a wired network? Would it be possible to have
both wired and wireless at the same time if you had standard NIC's and
wireless NIC's installed?

Thanks
----- Original Message -----
From: "William Underwood" <wllmundrwd@netscape.net>
To: <silug-discuss@silug.org>
Sent: Friday, April 12, 2002 1:02 PM
Subject: Re: Electrical Question


> -----Original Message-----
> >From: J. Ray Young` [mailto:ray@ussonet.net]
> >
> >
> >I have an electrical question for the group. My daughter and son in law
> >are missionaries in Tanzania. They are installing a satellite based
> >internet system. They want to connect it to the houses of 2 other
> >missionary families with a LAN on cat5e wire. The runs will be under 200
> >feet.
> >
> >The house with the satellite equipment is not on the same power
> >transformer from the utility company as the other two.
> >
> >They have measured between 7 and 8 volts between ground and neutral in
all
> >three houses.
> >
> >Does anyone see any problems with this setup????? If so what are the
> >solutions other than wireless networking. They have already bought the
> >hardware.
>
> Well, you know, I had considered doing all that also... I've got about
> 3000' of cable in 50-200' lengths (anybody want some cable? it cat5e!),
> and I did have some of that rolled up cable burial pipe, but I got rid of
> it.  I was going to network my house with the nearest three neighbors on
> either side, but I decided against it, and instead went wireless.  Why?
>
> Well, I got some cheap Proxim wireless (HRF/HomeRF) cards off of eBay,
> which made it a whole lot easier than digging 400' of trenches, pulling
> cable through pipe, laying pipe into the trenches, and then covering up
the
> pipe, reseeding the grass over the trenches, and all of that other crap,
> you know?
>
> But, I've got a point here, not just a story to bore you with.  If you're
> gonna bury the cable, you need to do the same thing I was going to do:
> Embed the cable in some kind of protective pipe.  Why?
>
> All the stories I've heard (check google, HAM operators constantly bury
> cable, plus there are other wired neighborhood networks out there)
indicate
> that moles just LOVE gnawing on cables...  Mayhap, Tanzanian moles don't
> like it, but I couldn't say.
>
> Now, they don't necessarily need to find some of that rolled cable burial
> pipe, or even 400' of PVC.  From what I've read, as long as the cable is
> externally sound, you can just use some of that corrugated black pipe that
> is made for getting rainwater from your downspout out to the street.
>
> But, back to the money issue: I got all my cable for free, but had to pay
> $50 bucks for the pipe, trencher rental was $80/day, and I think I would
> have put in about 20 hours of work to get it all buried.  On top of that,
I
> didn't have NICs, so you got to figure $5/cheap-$45/3com cards, times 6,
> and a cheap hub would be about $40.  So, I would've been looking at $50 +
> $80 + $30 + $40 + (uhmm.. well, I usually charge $40/hr for sidework, but
> $60 if it's network related, so we'll go with $50....) ($50*20) $1000, so
> $1200 for a wired neighborhood network.  Instead, I got a wireless gateway
> for $35, two wireless ISA nics for $10/each, and a wireless PCCard for
> $15.00 (thats for me!).  Counting shipping, I've paid less than $100 for a
> three house wireless network, and anticipate paying less than $500 once
> it's all completed, even with the fact that I can now include neighbors
> from across the street.  All that, with no digging!
>
> So, in my opinion, if they can afford a bit of a hit on their investment,
I
> say resell the equipment they already have, and buy wireless.
>
> Hmmm.. If they decide to do that, and don't go with 802.11b (probably
> better, but more expensive right now...), the HomeRF stuff from Compaq,
> Intel, Motorola, and Proxim are all completely interoperable.
>
> >
> >Thanks
> >J. Ray Young
>
> Yes, definitely just my 2¢,
> William
>
> --
> William Underwood
> wllmundrwd@netscape.net
>
>
>
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