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locke2121
10-29-2006, 01:59 AM
My family uses a Linksys wireless router. Its got a couple of those high-powered antennas on it. But I'm on a different floor with several walls and a ceiling/floor between me and the router, not to mention all the wiring that is running through the house between my comp and the router. Is there something I can use to boost my signal gain? Maybe a high-gain antenna like we bought for the router?

SalaTar
10-29-2006, 02:05 AM
http://www.linksysinfo.org/portal/forums/showthread.php?t=47282

Signal2Noise
10-29-2006, 03:26 AM
Where is the router located in relation to your comp? Higher or lower?

I have a wood-frame constructed 3 story house. The best place I found for the Linksys wireless was in the basement, on a shelf. The basement ceiling has acoustic tile and the rest of the floors have ceramic tile and/or hardwood. The other ceilings are normal drywall. Signal has been strong and steady to all parts of the house. During basement development/renos I had to relocate the wireless up to our library which is 1 1/2 floors above. From there I could get a signal to the top floor but almost minimal to the main floor and basement. So if it's convenient you could try toying with various placements. I've heard mixed results in those signal boosters that get plugged in away from the main router.

GregHess
10-29-2006, 02:37 PM
Make sure the router and modem are away from electronic devices. The close the router sits to the machines, the more the signal is effected.

External antenna's are more for relocating the signal broadcast AWAY from EMI then actually increasing it.

L.Rawlins
10-29-2006, 05:21 PM
http://www.freeantennas.com/projects/template/RubberDucks.jpg

Before you laugh, this is actually proven to work. :)

You can get instructions and printable templates from http://www.freeantennas.com (http://www.freeantennas.com/) for their parabolic reflectors that will help focus the otherwise omnidirectional broadcast of your wireless signal.

It's worth a shot. It's free. :shrug:

Here's the direct link to the template the guys on 'DL.TV' used. (http://www.freeantennas.com/projects/template2/index.html)

singularity2006
10-29-2006, 05:40 PM
That template thing looks pretty slick... I might have some fun with that one day.

Anyway, remember that wireless signal is also affected by any phones in the area (Even your neighbor) who use the 2.4GHz spectrum. In addition, wireless signal is also blocked by insulating materials such as ceramic.

As for boosting signal, you might be able to find some amp injectors on eBay that physically pump more power into the antenna giving you up to 30dbi gain. These injectors are small L shaped connectors that fit between the antenna and the plug on the router itself. A separate power supply goes into the injector. Albeit totally against FCC regulations, moving from a standard 5dbi antenna to a 30dbi antenna is .... ridiculously crazy and actually works. The ones I've seen from Taiwan (no FCC there) go up to 50dbi (although some routers will FRY because of faulty injectors that overpower the whole unit), which is essentially industrial grade for manufacturing businesses or something to that effect. On eBay, the highest I've seen is 27dbi. Anything larger is usually a several thousand dollar antenna build that is meant to be installed in research labs out on the research field (i.e., parks, caves, mountain passages, etc).

Oh, these injectors are radically expensive too... anywhere between $100 and $150. In the least, they DO work... daaaammmnnn well.

If you are looking for them on eBay, look for "500mW wifi/wireless booster" or some terms along those lines. The 500mW boosters give 27dBi gain while u may be able to find even stronger ones. Here's a sample search: http://search.ebay.com/500mW-booster_W0QQfkrZ1QQfromZR8

KarpA
10-29-2006, 06:31 PM
...Signal has been strong and steady to all parts of the house....

How did you take these info? A software or device?

Signal2Noise
10-29-2006, 10:25 PM
How did you take these info? A software or device?

Err...the software that comes with the wireless card, of course. It'll give you information such as signal strength, data transfer speed, and wireless protection type.

There's 3rd party software that provides even more info if you're into war driving (is that the term?) or frequent wireless-enabled establishments such as Starbucks.

Oh, and Greg Hess's advice about electronics is an important one as well. Especially if you're running a 2.4 GHz LAN which can be affected by cordless phones, cel phones, microwaves, etc.

lots
10-30-2006, 02:44 PM
Netstumbler is a handy utility for mapping wireless signal strength, etc...

locke2121
10-30-2006, 03:17 PM
Thanks guys....I'll try that parabolic dish thing. I wish I could afford a booster, but ain't no way! I'll let you guys in on how well the dish works!

singularity2006
10-30-2006, 10:53 PM
yah, boosters are damn expensive. But if u want something more in line with budget, you can get a refurb MIMO router from seller justdeals on ebay. G in itself has given me double my range of B. Makes me wonder what MIMO will do. Although the only problem with MIMO is that it's based on draft specifications. Might be worth it to wait until final revisions of 802.11i/n are finalized. By that time, if performance warrants, get a new Wireless-n router or get a cheaper draft version of N.

Gaffer
10-31-2006, 01:04 AM
http://www.freeantennas.com/projects/template/RubberDucks.jpg



Before you laugh, this is actually proven to work. :)

You can get instructions and printable templates from http://www.freeantennas.com (http://www.freeantennas.com/) for their parabolic reflectors that will help focus the otherwise omnidirectional broadcast of your wireless signal.

It's worth a shot. It's free. :shrug:

Here's the direct link to the template the guys on 'DL.TV' used. (http://www.freeantennas.com/projects/template2/index.html)

Used something similar for a wireless mic transmitter that was getting interference.

GregHess
10-31-2006, 01:56 PM
Something else to mention....

Make sure that all computers that are running in the house, are fully enclosed. No open case sides, and no windows. You would not believe the amount of interference an open case causes to a wireless signal...especially if its even remotely close to the router, or the incoming modem.

I've found in the last couple of years that many DCC home users tend to run with their case doors off, because the system "runs cooler" based on some vague temp probe data. All opening the side of a case does, is ruin the airflow through the case by allowing it to disperse out the side.

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