Saturday, June 20, 2009

[IBWiFi] Re: campus signal



I have installed yagi antenna's 1 mile apart and they worked and I know of others that have installed parabolic high gain antennas 10 miles apart on high locations. These were antennas specifically made for 2.4 Ghz WiFi.
Two important points: 1) Line of site is imperative and 2) A parabolic or yagi high gain antenna will be needed on campus pointing toward your son's location.

Ernie Ward

--- In InternetByWiFi@yahoogroups.com, "dirtfarmer" <dirtfarmer101@...> wrote:
>
> My son lives two miles from his college campus. There is campus-wide wi-fi supplied for him. He would like to be able to receive it from his home. I know very little about this but have been reading some. Is it realistic to expect to receive his signal with a dish network dish with some USB device at the focal point? If not, would a ten ft big C-band dish do it? Has anybody tried a ten ft. dish?
>

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Re: [IBWiFi] campus signal



Hi

I believe a dish antenna always increases signal, no matter what kind of RF signal, and of course if you respect all technical requirements to build such antenna.

The problem is that you will need to really point it at the source like a flash light...If you dont you will probabily loose signal. They are very, very directive. I have done experiments with a 6 foot dish antenna here and that is what I found out..

But there is hope...as I type this, my antenna is picking up a access point at almost a mile from my house and Im using about 50 feet of 213 coax cable from the antenna to the WIFI PCI card. on my desktop.

Im now using a high gain grid antenna, that looks like this one, which is also directive but has a fairly wide beamwidth in practice:

http://www.caworldwifi.com/images/P/30dbParabolicGrid_2.4GHz.jpg

and a smaller version here: http://www.rfshop.com.au/Portals/22/Pictures/Puddlenet.JPG

and gives me good results with a 25dBi gain with about 3 feet reflector. None of those home made antennas come even closer.

To greatly improv your system you can also attach a AP in client mode close to the antenna and run down the CAT5 cable, instead of coax cable, which I will do here in the near future (check the pic below) , and then you would have a good setup and internet for all computers in the house, but that is another story.

http://kvilleinternet.com/images/vettclose.jpg

Regards

Rod

----- Original Message -----
From: dirtfarmer
To: InternetByWiFi@yahoogroups.com
Sent: Friday, June 19, 2009 10:02 PM
Subject: [IBWiFi] campus signal

My son lives two miles from his college campus. There is campus-wide wi-fi supplied for him. He would like to be able to receive it from his home. I know very little about this but have been reading some. Is it realistic to expect to receive his signal with a dish network dish with some USB device at the focal point? If not, would a ten ft big C-band dish do it? Has anybody tried a ten ft. dish?

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Friday, June 19, 2009

Re: [IBWiFi] campus signal



As Gary said, check out Cantenna. I n addition, see if you can find any info on mounting a cantenna in place of the LNB on one of the old Priomestar dishes. You may also have to look up Wardriving.
EdC

--- On Fri, 6/19/09, Gary Brinck <Gary.brinck@gmail.com> wrote:

From: Gary Brinck <Gary.brinck@gmail.com>
Subject: Re: [IBWiFi] campus signal
To: InternetByWiFi@yahoogroups.com
Date: Friday, June 19, 2009, 7:03 PM

Not a realistic expectation.  A suitable antenna and reflector will extend the usable range of wifi, but the signal is not coming down from the sky like a satellite broadcast so a big dish doesn't really help. Wifi signals are propagating out from the transmitters on campus and any tree, building or vehicle in between the campus and his residence will likely stop the signal.  Now if he lived across a lake from the campus, he might have a chance. Basically you need line of sight to the wifi radio to have a very good chance.

A "cantenna" seems to be as good a reflector/concentrator for wifi as any. Google "cantenna".

dirtfarmer wrote:
> My son lives two miles from his college campus. There is campus-wide wi-fi supplied for him. He would like to be able to receive it from his home. I know very little about this but have been reading some. Is it realistic to expect to receive his signal with a dish network dish with some USB device at the focal point? If not, would a ten ft big C-band dish do it? Has anybody tried a ten ft. dish?

Gary
--
Gary & Nancy Brinck
2004 American Tradition 40V
2007 GMC Acadia

-----

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Posted by at No comments:

Re: [IBWiFi] campus signal



I would talk to the wifi guys at the college and ask them if a parabolic
antenna would help.And I am sure it would.
However, they might just give (for undeclared pizza's) or sell you a
bridge/amplifier to boost your signal and amplify theirs.
I sure think it would be worth a try and few pizza's.
I'll bet a $100 pizza card from Pizza Hut might work wonders......
Regards,

On Fri, Jun 19, 2009 at 9:02 PM, dirtfarmer <dirtfarmer101@hotmail.com>wrote:

>
>
> My son lives two miles from his college campus. There is campus-wide wi-fi
> supplied for him. He would like to be able to receive it from his home. I
> know very little about this but have been reading some. Is it realistic to
> expect to receive his signal with a dish network dish with some USB device
> at the focal point? If not, would a ten ft big C-band dish do it? Has
> anybody tried a ten ft. dish?
>
>
>

--
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Retired, Unemployed, Homeless, Transients
1996 Foretravel U270-36 w/24' Timberwolf Trailer
I firmly believe that tomorrow holds the possiblity for new technologies,
astounding discoveries, and a reprieve from my remaining obligations.
www.WERV2.com (Under Construction)
Find Jon: Via Satellite Tracker http://tinyurl.com/5mtpq
The Second Amendment is in place in case they ignore the others.

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Posted by at No comments:

Re: [IBWiFi] campus signal



Not a realistic expectation. A suitable antenna and reflector will extend the usable range of wifi, but the signal is not coming down from the sky like a satellite broadcast so a big dish doesn't really help. Wifi signals are propagating out from the transmitters on campus and any tree, building or vehicle in between the campus and his residence will likely stop the signal. Now if he lived across a lake from the campus, he might have a chance. Basically you need line of sight to the wifi radio to have a very good chance.

A "cantenna" seems to be as good a reflector/concentrator for wifi as any. Google "cantenna".

dirtfarmer wrote:
> My son lives two miles from his college campus. There is campus-wide wi-fi supplied for him. He would like to be able to receive it from his home. I know very little about this but have been reading some. Is it realistic to expect to receive his signal with a dish network dish with some USB device at the focal point? If not, would a ten ft big C-band dish do it? Has anybody tried a ten ft. dish?

Gary
--
Gary & Nancy Brinck
2004 American Tradition 40V
2007 GMC Acadia

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Posted by at No comments:

[IBWiFi] campus signal



My son lives two miles from his college campus. There is campus-wide wi-fi supplied for him. He would like to be able to receive it from his home. I know very little about this but have been reading some. Is it realistic to expect to receive his signal with a dish network dish with some USB device at the focal point? If not, would a ten ft big C-band dish do it? Has anybody tried a ten ft. dish?

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Wednesday, June 17, 2009

Re: [IBWiFi] High Power USB Wireless Adapter



thanks ken

--- On Wed, 6/17/09, Ken Bumbalough Sr <bumby@hughes.net> wrote:

From: Ken Bumbalough Sr <bumby@hughes.net>
Subject: Re: [IBWiFi] High Power USB Wireless Adapter
To: InternetByWiFi@yahoogroups.com
Date: Wednesday, June 17, 2009, 8:24 PM

Only if your with in range and it is free WI-FI spot

Ken

----- Original Message -----
From: joyewils
To: InternetByWiFi@ yahoogroups. com
Sent: Wednesday, June 17, 2009 11:24 AM
Subject: [IBWiFi] High Power USB Wireless Adapter

Hello everyone!! I am new and I have a question I have a Verizon aircard which I love but I was wondering if I could get on line without the air card if I used a High Power USB Wireless Adapter? Would that allow me to connect to surrounding wi fi spots from my home? Thanks. Joyce

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Posted by at No comments:

Re: [IBWiFi] High Power USB Wireless Adapter



Only if your with in range and it is free WI-FI spot

Ken

----- Original Message -----
From: joyewils
To: InternetByWiFi@yahoogroups.com
Sent: Wednesday, June 17, 2009 11:24 AM
Subject: [IBWiFi] High Power USB Wireless Adapter

Hello everyone!! I am new and I have a question I have a Verizon aircard which I love but I was wondering if I could get on line without the air card if I used a High Power USB Wireless Adapter? Would that allow me to connect to surrounding wi fi spots from my home? Thanks. Joyce

[Non-text portions of this message have been removed]

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Re: [IBWiFi] High Power USB Wireless Adapter



Is that a brand name or just a description of a more powereful wifi?

In any case, IF you can get a wifi signal at your jouse and IF is it open to the public, then the answer is Yes. Some wifi adapters have more powerful radios than others. And some have better antennas than others or even provisions for an external antenna. Any or all of those would improved your chances of getting a usable wifi signal, assuming there are any available in your neighborhood.

joyewils wrote:
> Hello everyone!! I am new and I have a question I have a Verizon aircard which I love but I was wondering if I could get on line without the air card if I used a High Power USB Wireless Adapter? Would that allow me to connect to surrounding wi fi spots from my home? Thanks. Joyce

Gary
--
Gary & Nancy Brinck
2004 American Tradition 40V
2007 GMC Acadia

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[IBWiFi] High Power USB Wireless Adapter



Hello everyone!! I am new and I have a question I have a Verizon aircard which I love but I was wondering if I could get on line without the air card if I used a High Power USB Wireless Adapter? Would that allow me to connect to surrounding wi fi spots from my home? Thanks. Joyce

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