Re: wireless specs

On Tue, 26 Feb 2008 09:42:24 -0800, "William Andersen"
<wgander@xxxxxxx> wrote:

The home is in a smalll community on a 1/4 acre lot.

That's 100ft by 100ft lot. Unless the shop and house are on opposite
corners, the require range will be less than 100ft. Better numbers
please?

The utility pole for
electric and cable service is next to the shop and the lines to the house
run almost parallel to the sidewalk between shop and house. I don't know if
they will provide any interference to the signal.

Utility power does NOT generate any interference to cable, DSL,
satellite, or wireless.

Both shop and house are wooden construction. The shop was built in the early
'40s and has interior walls of celotex for insulation; the house was built
in 1898 and I don't think the walls are insulated.

Does this community have a building code? Just curious.

Sounds ideal for wireless. Unless there's some metal in the walls
(chicken wire, foil back insulation, etc) the single walls should be
almost transparent to 2.4GHz.

My wife grw up in the
house and remembers her Dad building the shop. She remembers him finishing
parts of the house, but not insulating it. A neighbor's home had old
newspapers between interior and exterior wooden walls.

A good name for the shop would be "the fire trap". I lived in a WWII
era house that used "vegetable board" instead of drywall. The vegies
were made from dried and pressed agricultural waste. It worked well
until I knocked a small hole in the wall above the kitchen stove. The
steam from the tea pot caused the seeds in the wall to sprout. I had
various difficult to identify plants growing out of the walls.

Anyways, newspaper is transparent to RF.

The home had siding
of a rubbery shingle style (I don't remember what it was called) which has
beencovered with vinyl siding.

You got me there. If the rubber was strengthened with carbon or
graphite, there may be a problem. It's probably ok.

The shop had that sasme shingle siding but
has been covered with T-111 wooden siding.

That's fairly thin and should not add much attenuation. I think
you're ok for going through the walls.

The shop has an attic space, too,
so if I go to an external antenna, I have a good place for it.

Does it have glass windows? You may not need to install an external
antenna on the shop.

However, methinks you might want to explore some alternatives to
wireless.

1. For 100ft, you can just run CAT5 between the buildings. Direct
buriable rubberized and filled with silicon gel goo is commonly
available. I just bought 1000ft for $200 plus shipping. Optical
fiber is also an option if lightning is a potential problem.

2. If the two buildings share a common power line, you can use the
power lines for internet.
<http://www.homeplug.org>
See various power line networking products from Netgear.

3. You can also use the phone lines:
<http://www.homepna.org>

4. If you have CATV coax between buildings, there are ways to also
share the cable.

5. If you have a barbed wire fence, you can run DSL over barbed wire.


--
# Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
# 831-336-2558 jeffl@xxxxxxxxxxxxxxxxxxxxxx
# http://802.11junk.com jeffl@xxxxxxxxxx
# http://www.LearnByDestroying.com AE6KS
.

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