Any inexpensive ways to increase range indoors ?

Is there a inexpensive ways to increase wifi range indoors ?


Thanks

Matt <(E-Mail Removed)> wrote:
> Is there a inexpensive ways to increase wifi range indoors ?

http://www.freeantennas.com

--
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Clarence A Dold - Hidden Valley (Lake County) CA USA 38.8,-122.5

On Fri, 21 Oct 2005 03:52:50 +0000 (UTC),
(E-Mail Removed) wrote:

>Matt <(E-Mail Removed)> wrote:
>> Is there a inexpensive ways to increase wifi range indoors ?
>
>http://www.freeantennas.com

That's probably the right way to improve the range.

However, I now have a way to make the Wi-Fi signal go around corners
and through floors. Waveguide, as 4" dia aluminum dryer vent hose:
| http://www.acehardware.com/product/i...entPage=family
| http://www.dryerbox.com/pages/flexhose/tip_aluminum.htm
The feed at one end is exactly like the traditional 1/4 wave Pringles
can antenna feed. More accurately, it's actually a 25 ft long
Pringles can antenna. I bought a piece today for another project
(inflatable HF antenna) and thought it might be useful as a coax cable
replacement (waveguide) for Wi-Fi. Preliminary tests in my palatial
office show that the output at the end of the 25ft hose, has about the
same RF level as the stock rubber ducky antenna at the same distance.
That means that there's very little attenuation in the waveguide. I'll
burn some time this weekend modeling this idea and see if I can find a
more efficient end feed (probably just a bigger horn).

--
Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
831.336.2558 voice
http://www.LearnByDestroying.com AE6KS
http://802.11junk.com Skype: JeffLiebermann
(E-Mail Removed) (E-Mail Removed)

>However, I now have a way to make the Wi-Fi signal go around corners
>and through floors. Waveguide, as 4" dia aluminum dryer vent hose:
>| http://www.acehardware.com/product/i...entPage=family
>| http://www.dryerbox.com/pages/flexhose/tip_aluminum.htm
>The feed at one end is exactly like the traditional 1/4 wave Pringles
>can antenna feed. More accurately, it's actually a 25 ft long
>Pringles can antenna. I bought a piece today for another project
>(inflatable HF antenna) and thought it might be useful as a coax cable
>replacement (waveguide) for Wi-Fi. Preliminary tests in my palatial
>office show that the output at the end of the 25ft hose, has about the
>same RF level as the stock rubber ducky antenna at the same distance.
>That means that there's very little attenuation in the waveguide. I'll
>burn some time this weekend modeling this idea and see if I can find a
>more efficient end feed (probably just a bigger horn).

Now that's something completely different. In the same spirit, I was
wondering if I painted two adjacent walls with conductive paint (isn't
there something like paint with metal particles in it?) and then put
regular paint over it to hide it, could I place a radio near the
intersection of the walls and create a huge corner reflector?

Cheers,
Bruce

Re my possibly ridiculous post about a room sized reflector:

Jeff, have you ever modeled a corner reflector with sides of, say, 12
feet by 12 feet fed by a rubber duck type omni antenna? What program
do you use for modeling?

Thanks,
Bruce

On Fri, 21 Oct 2005 07:58:17 -0400, bjs555 <(E-Mail Removed)> wrote:

>Now that's something completely different. In the same spirit, I was
>wondering if I painted two adjacent walls with conductive paint (isn't
>there something like paint with metal particles in it?) and then put
>regular paint over it to hide it, could I place a radio near the
>intersection of the walls and create a huge corner reflector?

Corner reflectors don't scale very well beyond perhaps 1 or 2
wavelenths per side. The nice smooth front lobe pattern starts
looking like a "fan like" series of small lobes. You're much better
off with a parabola with large reflectors. Also, the gain doesn't
increase for large corner reflectors much over about 15dBi. Of
course, aiming your reflector would be a bit of a challenge.

--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

On Fri, 21 Oct 2005 09:29:59 -0400, bjs555 <(E-Mail Removed)> wrote:

>Re my possibly ridiculous post about a room sized reflector:
>
>Jeff, have you ever modeled a corner reflector with sides of, say, 12
>feet by 12 feet fed by a rubber duck type omni antenna? What program
>do you use for modeling?

No, I haven't taken enough controlled substances to attempt that.
Actually, I'm too busy answering usenet news questions to do anything
useful these days.

For modeling, I use 4NEC2.
http://home.ict.nl/~arivoors/
which is free and is VERY good. It comes with a large collection of
samples.

I have some examples posted at:
http://802.11junk.com/jeffl/pics/ant...uad/index.html
http://802.11junk.com/jeffl/pics/ant...400/index.html
I am still learning how to do proper modeling and am not an expert.

Also see:
http://www.eznec.com
The limited demo is free and quite useful.

I also use a variety of specialized deck generators and modeling
programs to deal with common constructs and geometries.

For a wide selection of other programs, see:
http://www.si-list.org/swindex2.html


--
Jeff Liebermann (E-Mail Removed)
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

>>Now that's something completely different. In the same spirit, I was
>>wondering if I painted two adjacent walls with conductive paint (isn't
>>there something like paint with metal particles in it?) and then put
>>regular paint over it to hide it, could I place a radio near the
>>intersection of the walls and create a huge corner reflector?
>
>Corner reflectors don't scale very well beyond perhaps 1 or 2
>wavelenths per side. The nice smooth front lobe pattern starts
>looking like a "fan like" series of small lobes. You're much better
>off with a parabola with large reflectors. Also, the gain doesn't
>increase for large corner reflectors much over about 15dBi. Of
>course, aiming your reflector would be a bit of a challenge.

Interesting. Too bad corner reflectors don't just keep getting better
with size. No, I'm not going to turn my room into a parabola Thanks
for the answer.

>>Re my possibly ridiculous post about a room sized reflector:
>>
>>Jeff, have you ever modeled a corner reflector with sides of, say, 12
>>feet by 12 feet fed by a rubber duck type omni antenna? What program
>>do you use for modeling?
>
>No, I haven't taken enough controlled substances to attempt that.
>Actually, I'm too busy answering usenet news questions to do anything
>useful these days.

Your usenet answers should be in a book. I know I'd sure like
something like that in my library.

>For modeling, I use 4NEC2.
> http://home.ict.nl/~arivoors/
>which is free and is VERY good. It comes with a large collection of
>samples.
>
>I have some examples posted at:
> http://802.11junk.com/jeffl/pics/ant...uad/index.html
> http://802.11junk.com/jeffl/pics/ant...400/index.html
>I am still learning how to do proper modeling and am not an expert.
>
>Also see:
> http://www.eznec.com
>The limited demo is free and quite useful.
>
>I also use a variety of specialized deck generators and modeling
>programs to deal with common constructs and geometries.
>
>For a wide selection of other programs, see:
> http://www.si-list.org/swindex2.html

Great! Thanks!

Bruce

I get a very good results from putting a 8 x 4" card covered in silver foil,
bent in half to 60 deg just standing close behind the stand of my D-Link
G122 USB adapter or Orinoco USB adapter.
Regards,
Martin