802.11G health issue and home network cabling question

Hi dear all:

Recently after reading some articles I have some concerns about 802.11G
WLAN health issue:
http://arstechnica.com/news.ars/post/20060222-6235.html
http://www.netstumbler.org/archive/i...p/t-12052.html

Is Wifi or WLAN verified to have some health issues with humans? We
have a baby (13 months) at home so we really don't want to take any
risk.

Because of this, I'm thinking of giving up our current wireless LAN and
use fixed line instead. However, although I'm a family handyman, but I
have never did category-5 home wiring project before. I don't want to
drill a hole on the wall only to find out that there is a water pipe
behind the wall!!! So, is this some kind of project that I could do
myself or I better hire a professional electrian or handyman to do the
job?? Is there any online resources or advices that people could give
me about this kind of home project? Many thanks!

T. T. <hotister@hotmail.com> wrote

> Recently after reading some articles I have some
> concerns about 802.11G WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html

> Is Wifi or WLAN verified to have some health issues with humans?

Nope.

> We have a baby (13 months) at home so we really don't want to take any risk.

Then you had better not have any kids.

> Because of this, I'm thinking of giving up our current wireless LAN
> and use fixed line instead. However, although I'm a family handyman,
> but I have never did category-5 home wiring project before. I don't
> want to drill a hole on the wall only to find out that there is a water
> pipe behind the wall!!!

It usually isnt that hard to work out where there is no possibility of any
pipe, because there is nothing that uses water anywhere near there
and to check that with a stud/pipe/wiring detector before you drill.

> So, is this some kind of project that I could do myself

Yes, it aint rocket science.

> or I better hire a professional electrian or handyman to do the job??

They do manage to drill into water pipes.

> Is there any online resources or advices that people
> could give me about this kind of home project?

Yep, plenty.

T. T. wrote:



> Hi dear all:

> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html

> Is Wifi or WLAN verified to have some health issues with humans? We
> have a baby (13 months) at home so we really don't want to take any
> risk.

Your cell phone is designed to throw the signal hundreds of times farther
and you hold it right to your ear, right? So no, no worries there.


> Because of this, I'm thinking of giving up our current wireless LAN and
> use fixed line instead.

Not necessarily because of that but cabling has lots of other benefits
that still justify the need for it. You cannot power a device over
wireless, just to give an example. Read http://searchwarp.com/swa23809.htm
for more pointers.

> However, although I'm a family handyman, but I
> have never did category-5 home wiring project before. I don't want to
> drill a hole on the wall only to find out that there is a water pipe
> behind the wall!!!

They make stud finders for that. Don't you have one already?

> So, is this some kind of project that I could do
> myself or I better hire a professional electrian or handyman to do the
> job??


It could be real fun and as an added bonus you will learn a lot about your
house (leaks, rots, wasps – you name it ;-)) doing it. So, yes go for it!


> Is there any online resources or advices that people could give
> me about this kind of home project? Many thanks!

Sorry for the shameless plug but we carry a lot of useful info, including
an e-book on the matter (link in my signature). You are welcome!

--

Best Regards,
Dmitri Abaimov, RCDD
http://www.cabling-design.com/
Home Cabling Guide, Cabling Forum, color codes, pinouts and other useful
resources for premises cabling users and pros

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Rod Speed wrote:
> It usually isnt that hard to work out where there is no possibility of any
> pipe, because there is nothing that uses water anywhere near there
> and to check that with a stud/pipe/wiring detector before you drill.

Poke a small in the dry wall or drill a small hole very slowly without
much pressure on the drill...go in about 3/4 of an inch and use a coat
hanger to fish around for anything on the back side. And of course, get
a decent stud finder and an energized wire detector.

"T. T." <hotister@hotmail.com> hath wroth:

>Recently after reading some articles I have some concerns about 802.11G
>WLAN health issue:
>http://arstechnica.com/news.ars/post/20060222-6235.html
>http://www.netstumbler.org/archive/i...p/t-12052.html

Concern and demonstrable proof are quite different. At the power
levels of a typical Wi-Fi system, I would say that you and the baby
are safe.

Let's pretend that there is an effect. According to inverse square
law, the exposure is proportional to the square of the distance.
Double the distance, 1/4th the exposure. 4 times the distance, and
1/16th the exposure. That means keep your distance and you're much
safer.

However, you're not built in only 2 dimensions. RF absorption (as
opposed to exposure) is proportional to the cube of the distance.
Double the distance and you absorb 1/8th the RF. 4 times the
distance, and you absorb 1/64th the energy. This is roughly how the
SAR (specific absorption rate) is calculated for cell phones.

After distance, the next most important parameters are power and duty
cycle. Power is easy. If the transmitter is on the air all the time,
it's 100% duty cycle and you get the maximum absorption. However, if
your transmitter is a GSM cell phone, it only transmits 1/8th the
time. Therefore, you only get 1/8th the exposure. Wi-Fi varies in
duty cycle. With no traffic, the duty cycle is something like 1/100th
where all that gets transmitted are the beacon frames. Download
furiously and it approaches 100% duty cycle.

Now, let's warp some numbers. The sun cranks out 1000 watts of energy
per square meter at noon. The average wireless access point transmits
about 15 milliwatts (0.015 watts) of RF. At a distance of 1 meter,
that's a fabulous 15 milliwatts per square meter exposure. Therefore
the sun delivers 66,666 times more power than your wireless access
point. Sure, it's at different frequencies, but if the tin foil hat
crowd can ignore frequency effects, then so can I. Like I said, "warp
some numbers".

The Canadian university president declared that some unreferenced
Calif PUC study said "more research is necessary". Well, yes... more
research is always necessary. That's how researchers get their grant
funding. There's no end to research and every research paper I've
ever read has ended in "more research is necessary".

Anyway, enough numbers and educational politics. If you're seriously
worried about RF exposure and don't want to take any chances, then
running CAT5 is the obvious alternative. Just ignore the RF coming
from TV, AM, FM, cellular, military, radar, aviation, and commercial
wireless systems. Depending on your location, such RF levels can
easily exceed your Wi-Fi levels.

Let's do some more math. How far would an FM broadcast station need
to be away from your house to have the same RF exposure levels as your
Wi-Fi at a distance of 1 meter. Well, the math is simple enough:
Power_1 / Power_2 = Distance_1 ^2 / Distance_2 ^2
0.015 watts / 50,000 watts (ERP) = 1 meter^2 / Distance_2 ^2
Distance_2 = 1800 meters
So, if you have an FM broadcast station within about a mile, it's
producing about the same RF exposure level as your wireless access
point at 1 meter. Actually the FM station is producing quite a bit
more because it runs at 100% duty cycle while Wi-Fi averages much
less, but I'll use worst case just like all the alarmist reports.

So, what can you do to reduce RF exposure? Aluminum foil wall paper
is available. Frequency selective wallpaper can be found:
| http://www.newscientist.com/article.ns?id=dn6240
You can turn your house into an RF screen room with RF absorbent
non-reflective material. Actually, that might not be a bad idea if
the kid turn out to be a chronic screamer.

Another easy fix is to simply turn off the transmitter when it's not
being used. Carbon filled tubing slipped over the antenna works
nicely. If you get a separate wireless access point and router, then
you can just unplug the wireless part when it's not being used.

>Is Wifi or WLAN verified to have some health issues with humans?

Verified by the FCC, NIH, or a peer reviewed medical publication? To
the best of my limited knowledge, no such study has been verified. The
problem is that most of the studies are epidemiological, where the
research report attempt to correlate medical abnormalities with RF
exposure. Since this takes a long time, the sample grouping is never
differentiated by a single factor, and the preponderance of a
multitude of other contributory factors, the chances of an
epidemiological study finding something interesting *AND* repeatable,
is zilch.

>We
>have a baby (13 months) at home so we really don't want to take any
>risk.

Read what I wrote in terms of the baby. Distance is the most
important factor. That means what you feed the kid and his immediate
environment is most important. Worry about those and not
environmental issues that fade rapidly with distance. There's also
more than a hint that growing up requires early exposure to bugs,
filth, chemicals, and toxins to build up a survivable immunity. That
which doesn't kill the kid make him/her stronger.

>Because of this, I'm thinking of giving up our current wireless LAN and
>use fixed line instead. However, although I'm a family handyman, but I
>have never did category-5 home wiring project before.

It's not that difficult but does take some practice. Since you have a
kid, you should plan to redecorate or move things around about every 5
years. Might as well get used to running and terminating wires.

>I don't want to
>drill a hole on the wall only to find out that there is a water pipe
>behind the wall!!!

Drill a small hole in the wall and shove a coat hanger in to see what
you're getting too close to. There are field detectors and toners for
locating AC wiring (that's not in conduit). You can hear water pipes
with a stethoscope. If you have money, you can get a fiber optic
inspection viewer. Lots of ways to sniff around inside a wall.

Incidentally, you biggest problem will not be hitting a wire or pipe.
It will be hitting a stud or firebreak with the drill. Unlike hanging
pictures on the wall, you want to avoid the studs when running CAT5.
Use a stud finder.

>So, is this some kind of project that I could do
>myself or I better hire a professional electrian or handyman to do the
>job??

Your lack of imagination suggests limited abilities to do this right
the first time. Perhaps having an electrician show you how to do it
would be better than Learn by Destroying(tm).

>Is there any online resources or advices that people could give
>me about this kind of home project? Many thanks!

Yes. Google found a few. Lots of vendors have tutorials under their
"structured wiring" products. Dmitri has his site. You should be
able to find something.

--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

"T. T." <hotister@hotmail.com> wrote in message
news:1159230734.234495.40860@e3g2000cwe.googlegrou ps.com...
> Hi dear all:
>
> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html
>
> Is Wifi or WLAN verified to have some health issues with humans?

No. The power output from the typical wireles router is so low that to
really suffer any harm from your WiFi setup, you'd have to stick the antenna
in your ear.

Rod Speed wrote:
> T. T. <hotister@hotmail.com> wrote
>
>
>>Recently after reading some articles I have some
>>concerns about 802.11G WLAN health issue:
>>http://arstechnica.com/news.ars/post/20060222-6235.html
>>http://www.netstumbler.org/archive/i...p/t-12052.html
>
>
>>Is Wifi or WLAN verified to have some health issues with humans?
>
>
> Nope.
>
>
>>We have a baby (13 months) at home so we really don't want to take any risk.
>
>
> Then you had better not have any kids.
>
>
>>Because of this, I'm thinking of giving up our current wireless LAN
>>and use fixed line instead. However, although I'm a family handyman,
>>but I have never did category-5 home wiring project before. I don't
>>want to drill a hole on the wall only to find out that there is a water
>>pipe behind the wall!!!
>
>
> It usually isnt that hard to work out where there is no possibility of any
> pipe, because there is nothing that uses water anywhere near there
> and to check that with a stud/pipe/wiring detector before you drill.
>
>
>>So, is this some kind of project that I could do myself
>
>
> Yes, it aint rocket science.
>
>
>>or I better hire a professional electrian or handyman to do the job??
>
>
> They do manage to drill into water pipes.
>
>
>>Is there any online resources or advices that people
>>could give me about this kind of home project?
>
>
> Yep, plenty.
>
>
Hi, Rod
What is your credential to answer his question so well?

"T. T." wrote:
>
> Hi dear all:
>
> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html
>
> Is Wifi or WLAN verified to have some health issues with humans? We
> have a baby (13 months) at home so we really don't want to take any
> risk.
>
> Because of this, I'm thinking of giving up our current wireless LAN and
> use fixed line instead. However, although I'm a family handyman, but I
> have never did category-5 home wiring project before. I don't want to
> drill a hole on the wall only to find out that there is a water pipe
> behind the wall!!! So, is this some kind of project that I could do
> myself or I better hire a professional electrian or handyman to do the
> job?? Is there any online resources or advices that people could give
> me about this kind of home project? Many thanks!

You could always staple the wiring to the baseboards. (Locate an
Ethernet router at some central point, to cut down wire length.)
Or arrange all your computing devices in some central location
(the "computer room"). I have a suspended ceiling in my basement,
and drilling a hole in a closet gave me a way to get wiring up to
my "computer room".

This posting suggests using the attic crawl space, and descend to
meet a hole located in the wall. My house has no such space, so
I cannot do this. But I do have a finished basement with an
ugly ceiling.

http://groups.google.ca/group/comp.h...a?dmode=source

Try search terms like "pulling cat5 wire residential" in Google
and see what pops up.

Another option is to do networking over the existing AC wiring.
I don't know what the incidental radiation level is for this
technology, but it might be better than wireless devices.
Since the AC in North American homes is wired with two 110V
phases, you may need a bridging device (capacitive coupling?)
between the two phases at some point, to pass the signal from
one phase to another. Otherwise, the Homeplug signal might have to
go out to the pole transformer, before it can turn around
and get to the other phase in your house. I don't know
anything about this technology, and this is just a suggestion
as something to research if you decide to go this way.

http://www.pcworld.com/article/id,85...1/article.html

Paul

Paul wrote:

> You could always staple the wiring to the baseboards.

Since we are talking about category cables one should be extremely careful
with stapling anything. General rule of thumb is that the cable should be
able to move somewhat after it's installed. This way you can ensure the
jacket is not cinched and the pairs inside are not damaged. It hard to
achieve that with staples, even with rounded ones. Also, flat staples are
absolutely no-no because they permanently damage the cable by flattening
it out and jamming pairs into each other. Only rounded staples that match
the cable diameter should be used. Still, avoid even those if you can.

--

Best Regards,
Dmitri Abaimov, RCDD
http://www.cabling-design.com/
Home Cabling Guide, Cabling Forum, color codes, pinouts and other useful
resources for premises cabling users and pros

--
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Tony Hwang <dragon40@shaw.ca> wrote
> Rod Speed wrote
>> T. T. <hotister@hotmail.com> wrote

>>> Recently after reading some articles I have some
>>> concerns about 802.11G WLAN health issue:
>>> http://arstechnica.com/news.ars/post/20060222-6235.html
>>> http://www.netstumbler.org/archive/i...p/t-12052.html

>>> Is Wifi or WLAN verified to have some health issues with humans?

>> Nope.

>>> We have a baby (13 months) at home so we really don't want to take any risk.

>> Then you had better not have any kids.

>>> Because of this, I'm thinking of giving up our current wireless LAN
>>> and use fixed line instead. However, although I'm a family handyman,
>>> but I have never did category-5 home wiring project before. I don't
>>> want to drill a hole on the wall only to find out that there is a
>>> water pipe behind the wall!!!

>> It usually isnt that hard to work out where there is no possibility
>> of any pipe, because there is nothing that uses water anywhere near
>> there and to check that with a stud/pipe/wiring detector before you drill.

>>> So, is this some kind of project that I could do myself

>> Yes, it aint rocket science.

>>> or I better hire a professional electrian or handyman to do the job??

>> They do manage to drill into water pipes.

>>> Is there any online resources or advices that people
>>> could give me about this kind of home project?

>> Yep, plenty.

> What is your credential to answer his question so well?

Physically built my own house and have enough of a clue
to realise that water pipes arent randomly placed in walls,
they are only where there is a need for a water pipe.

Same with power too.

You want nice looking wall ports, and that can be a stinker
to install. They need to be attached to studs, and that can
mean cutting out a fair piece of sheet rock, and then repairing
that. Also, it is not easy to go sideways in a wall. Talk to
some pros, and get a price.

johns

In article <1159257604.348346.109820@m7g2000cwm.googlegroups. com>,
johns <johns321@moscow.com> wrote:
>
>You want nice looking wall ports, and that can be a stinker
>to install. They need to be attached to studs, and that can
>mean cutting out a fair piece of sheet rock, and then repairing
>that. Also, it is not easy to go sideways in a wall. Talk to
>some pros, and get a price.

Agreed about going sideways.. Up and over or down and under is a better
bet..

There are a number of cut-in type mounting rings for datacom that work
quite well, and do not require attachment to a stud. Caddy makes them,
as does Carlon. You cut a hole of the right size, stick in the mounting
ring, pull the wire thru, terminate the wire, and mount the plate.



--
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie @ tantivy.net |
| P.O. Box 19792, Stanford, Ca 94309 |
-- I am Me, I am only Me, And no one else is Me, What could be simpler? --

In article <1159230734.234495.40860@e3g2000cwe.googlegroups.c om>, T. T.
says...
> Hi dear all:
>
> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html
>
> Is Wifi or WLAN verified to have some health issues with humans? We
> have a baby (13 months) at home so we really don't want to take any
> risk.
>
Is your cellphone switched on?
Is there cellular coverage in your area?
Do you use a Microwave Oven?
Do you have a CRT TV or PC Monitor?
Do you have electricity in your house?

BETTER TURN THEM ALL OFF QUICK - The radiation can cause brain tumors
etc.

It's all scaremongering bullshit.


--
Conor

I'm really a nice guy. If I had friends, they would tell you.

Earn commission on online purchases, £2.50 just for signing up:
http://www.TopCashBack.co.uk/Conor/ref/index.htm

johns <johns321@moscow.com> wrote:

> You want nice looking wall ports, and that can be a
> stinker to install. They need to be attached to studs,

No they dont.

> and that can mean cutting out a fair piece of sheet rock,

Nope, not if you use a stud finder.

> and then repairing that.

No need if you do it properly.

> Also, it is not easy to go sideways in a wall.

You dont need to do that.

> Talk to some pros, and get a price.

No thanks.

T. T. wrote:

> Hi dear all:
>
> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html
>
> Is Wifi or WLAN verified to have some health issues with humans? We
> have a baby (13 months) at home so we really don't want to take any
> risk.
>
> Because of this, I'm thinking of giving up our current wireless LAN and
> use fixed line instead. However, although I'm a family handyman, but I
> have never did category-5 home wiring project before. I don't want to
> drill a hole on the wall only to find out that there is a water pipe
> behind the wall!!! So, is this some kind of project that I could do
> myself or I better hire a professional electrian or handyman to do the
> job?? Is there any online resources or advices that people could give
> me about this kind of home project? Many thanks!
>

I think you are over-reacting.

Before giving up WiFi, you should give up uWave ovens and cellphones.

uWave ovens are not thought to be dangerous if they work correctly; if
the door interlock fails, allowing the uWave to transmit when the door
is open, then the danger from that ~1000W radiator is huge. And, don't
put the cat in the nuker, unless you have a good fur stir fry recipe.

Cellphones are typically far more dangerous than PCs with WiFi, because
radiated power decreases with the square of distance. You hold a
cellphone with the antenna ~1 inch from your brain, while the antenna
in a laptop is likely to be ~18 inches from your brain, and therefore
~~1% of the danger of the cellphone.
--
Cheers, Bob

johns wrote:
> You want nice looking wall ports, and that can be a stinker
> to install. They need to be attached to studs, and that can
> mean cutting out a fair piece of sheet rock, and then repairing
> that. Also, it is not easy to go sideways in a wall. Talk to
> some pros, and get a price.

Nonsense...dropping a jack into a wall is pretty simple, at least for
those of us that do it all the time. Unless you have a horizontal cross
brace and then you'll need a Diversabit.

As Bob mentioned in his response, Caddy makes a low voltage rated
(telecom and data use) metal back plate. Haven't seen anything like that
at Lowes, but Home Depot carries the Leviton bracket. They also carry an
orange plastic boxless bracket (compared to a full box electrical outlet
box) in a ten-pack, but that seems overkill.

BTW, a nice way to firmly mount those metal brackets is to take an 8"
pair of water pump pliers and squeeze the wings or tabs against the
drywall (in addition to a drywall screw)...that way the faceplate
doesn't wiggle around.

Tool Tip...Rinse off your drywall saw and drill bits or anything else
that has drywall dust on it with a bit of WD-40. The dust is very
hydroscopic and attracts moisture which will rust out your tools.

Dmitri(Cabling-Design.com) wrote:
> Paul wrote:
>
>> You could always staple the wiring to the baseboards.
>
> Since we are talking about category cables one should be extremely careful
> with stapling anything.

Dmitri is so right! Customer did his own "cleanup" and stapled his CAT5
cable with an Arrow T-25 staple gun. I went back and did a cable test
and it wouldn't even pass CAT3 10 Mbps. Her didn't short out any pairs,
just crushed them to the point there were too many impedance bumps.

Lowes carries a new staple gun designed for network cables and coax with
special plastic insert staples.


Velcro® is your friend....

You guys are worse than me. I'm already running
from this.

johns

In alt.internet.wireless Rod Speed <rod.speed.aaa@gmail.com> wrote:

| Physically built my own house and have enough of a clue
| to realise that water pipes arent randomly placed in walls,
| they are only where there is a need for a water pipe.
|
| Same with power too.

Whether _you_ might need it or not, the National Electrical Code used in
the USA does specify a minimum of outlets distributed around. You can
expect to find wiring pretty much on any wall wider than 2 feet.

--
|---------------------------------------/----------------------------------|
| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
| first name lower case at ipal.net / spamtrap-2006-09-26-1344@ipal.net |
|------------------------------------/-------------------------------------|

In comp.dcom.cabling johns <johns321@moscow.com> wrote:
>
> You want nice looking wall ports, and that can be a stinker
> to install. They need to be attached to studs, and that can
> mean cutting out a fair piece of sheet rock, and then repairing
> that. Also, it is not easy to go sideways in a wall. Talk to
> some pros, and get a price.
>
> johns
>
google "old work box"; Electricians have been using them for years.
There's no reason the box needs to be attached to a stud. For
low-voltage wiring there are trim rings designed to be self-mounting
in the wall.

Jerry

phil-news-nospam@ipal.net wrote
> Rod Speed <rod.speed.aaa@gmail.com> wrote

>> Physically built my own house and have enough of a clue
>> to realise that water pipes arent randomly placed in walls,
>> they are only where there is a need for a water pipe.

>> Same with power too.

> Whether _you_ might need it or not, the National Electrical Code used
> in the USA does specify a minimum of outlets distributed around.

Yes.

> You can expect to find wiring pretty much on any wall wider than 2 feet.

Oh bullshit. And what I meant is that the power outlets will be obvious,
so you only need to be careful where there are power outlets. There is
very unlikely to be any power wiring where there are no power outlets
particularly when you are mounting the cat5/6 outlets well up from the floor.

decaturtxcowboy <nope_none_@nowayspam.com> hath wroth:

>Dmitri is so right! Customer did his own "cleanup" and stapled his CAT5
>cable with an Arrow T-25 staple gun. I went back and did a cable test
>and it wouldn't even pass CAT3 10 Mbps. Her didn't short out any pairs,
>just crushed them to the point there were too many impedance bumps.

Are you sure about that? I got into an argument about the proper
spacing of Arrow T25 type staples. One expert said that they should
be as close together as necessary to prevent droop. Another
suggested, that too many staples would fail certification. My guess
is that there would be problems only if they punctured the bundle.
Everyone was wrong.

So, we tried it. I took a 4ft x 4ft chunk of plywood and stapled
about 50ft of CAT5e in a serpentine pattern to the plywood. I started
with staples every inch but when both hands finally started to hurt, I
switched to about 2" spacing. My guess is about 300-400 staples
total.

The plywood was not very consistent and I did flatten the cable with
about 30-50 staples. I also nicked the jacket a few times, but no
punctures.

We tested the mess with a (borrowed) Fluke DSP-4000 Cable Analyzer. No
problems passing at 100Mbits/sec.

>Lowes carries a new staple gun designed for network cables and coax with
>special plastic insert staples.

Arrow T59A or T75. Kinda expensive, projecting, and UGLY.
| http://www.arrowfastener.com/FMPro?-...tem=T59&-find=

>Velcro® is your friend....

I prefer duct tape, RTV, spackle, and plastic wood. Great for hiding
my mistakes.

--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

> > Is there any online resources or advices that people
> > could give me about this kind of home project?
>
> Yep, plenty.

Could you please give me some examples? Thanks!

T. T. <hotister@hotmail.com> wrote

>>> Is there any online resources or advices that people
>>> could give me about this kind of home project?

>> Yep, plenty.

> Could you please give me some examples?

Nope, but others have and its trivial to google for.

johns wrote:
> You want nice looking wall ports, and that can be a stinker
> to install. They need to be attached to studs, and that can
> mean cutting out a fair piece of sheet rock, and then repairing
> that. Also, it is not easy to go sideways in a wall. Talk to
> some pros, and get a price.
>
> johns
>
That's an interesting opinion about needing wall stud attachment and may
even be code in some places but it's not a majority view. Even among "pros".

Home Depot and Lowes both now carry the "orange" old work boxes for
doing this without stud attachment. They work quite well and unless you
mess up, no sheet rock repair required.

In article <nv0kh21fpdub0ujp9gj7q8j9pkvfvhie18@4ax.com>, Jeff Liebermann <jeffl@comix.santa-cruz.ca.us> wrote:
>decaturtxcowboy <nope_none_@nowayspam.com> hath wroth:
>
>>Dmitri is so right! Customer did his own "cleanup" and stapled his CAT5
>>cable with an Arrow T-25 staple gun. I went back and did a cable test
>>and it wouldn't even pass CAT3 10 Mbps. Her didn't short out any pairs,
>>just crushed them to the point there were too many impedance bumps.
>
>Are you sure about that? I got into an argument about the proper
>spacing of Arrow T25 type staples. One expert said that they should
>be as close together as necessary to prevent droop. Another
>suggested, that too many staples would fail certification. My guess
>is that there would be problems only if they punctured the bundle.
>Everyone was wrong.
>
>So, we tried it. I took a 4ft x 4ft chunk of plywood and stapled
>about 50ft of CAT5e in a serpentine pattern to the plywood. I started
>with staples every inch but when both hands finally started to hurt, I
>switched to about 2" spacing. My guess is about 300-400 staples
>total.
>
>The plywood was not very consistent and I did flatten the cable with
>about 30-50 staples. I also nicked the jacket a few times, but no
>punctures.
>
>We tested the mess with a (borrowed) Fluke DSP-4000 Cable Analyzer. No
>problems passing at 100Mbits/sec.
>
>>Lowes carries a new staple gun designed for network cables and coax with
>>special plastic insert staples.
>
>Arrow T59A or T75. Kinda expensive, projecting, and UGLY.
>|
> http://www.arrowfastener.com/FMPro?-...tml&-lay=Entry
>&-Op=Equals&item=T59&-find=
>
>>Velcro® is your friend....
>
>I prefer duct tape, RTV, spackle, and plastic wood. Great for hiding
>my mistakes.

You make mistakes? Say it ain't so, Joe (err Jeff) <wink/>

fundamentalism, fundamentally wrong.

"T. T." <hotister@hotmail.com> wrote in message
news:1159230734.234495.40860@e3g2000cwe.googlegrou ps.com...
> Hi dear all:
>
> Recently after reading some articles I have some concerns about 802.11G
> WLAN health issue:
> http://arstechnica.com/news.ars/post/20060222-6235.html
> http://www.netstumbler.org/archive/i...p/t-12052.html
>
> Is Wifi or WLAN verified to have some health issues with humans? We
> have a baby (13 months) at home so we really don't want to take any
> risk.

Everytime the wife gives me grief about layin round getting nothing done, I
blame the wireless and its effects on health.



>
> Because of this, I'm thinking of giving up our current wireless LAN and
> use fixed line instead. However, although I'm a family handyman, but I
> have never did category-5 home wiring project before. I don't want to
> drill a hole on the wall only to find out that there is a water pipe
> behind the wall!!! So, is this some kind of project that I could do
> myself or I better hire a professional electrian or handyman to do the
> job?? Is there any online resources or advices that people could give
> me about this kind of home project? Many thanks!
>

rico_001@hotmail.com (Rico) hath wroth:

>>I prefer duct tape, RTV, spackle, and plastic wood. Great for hiding
>>my mistakes.
>
>You make mistakes? Say it ain't so, Joe (err Jeff) <wink/>

I prefer "Jack D. Repair". I once made some business cards with that
name on it. I didn't work as expected because too many people didn't
understand the pun.

I recently installed an extra PVC pipe on the wall behind my relay
rack full of radio junk to the roof. My other conduits were maxed out
full of coax cable, CAT5, fiber, RG-6/u, rotator cable, wx station
cable, signal wire, etc. The standard procedure is measure twice, cut
once. That works fine, but not while getting interrupted every few
minutes by obnoxious friends with computah problems. I missed
drilling by about 1/4" into the wall. Argh. I had planned to use
a 1 1/2" PVC pipe, but that won't work partially buried into the wall.
So, I dug out the jig saw, enlarged the hole to fit a 2" PVC pipe,
mounted the pipe, and patched the mistake with spackle, plastic wood,
and roofing tar. Nobody will ever know unless I show them.

Like I said... I hide my mistakes.

To err is human and I need to reassure myself occasionally.

--
Jeff Liebermann jeffl@comix.santa-cruz.ca.us
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

Jeff Liebermann wrote:
> So, I dug out the jig saw, enlarged the hole to fit a 2" PVC pipe,

And ya cut it again and it was still too short... heh heh heh

Jeff Liebermann wrote:
> Are you sure about that? I got into an argument about the proper
> spacing of Arrow T25 type staples.

The network card LAN lights lite up, and no shorts and good continuity
in all the pairs. It was a 150 ft run. I suppose one could try to
duplicate it with some very very tight skinny nylon wire ties and see
what happens.

Nevertheless, that was indeed an interesting you tried.