On Nov 21, 2:38*am, DaveC wrote:
Looking for outdoor omni "whip" antenna for 2.4 GHz.

Is there any reason to not go for the greatest gain antenna, given that cost
is not too important (within reason)?

There are scads of these on the 'net. I'm looking for someone who has
experience with one or more of them and can make a recommendation for one..

Thanks,
--
DaveC

This is an invalid return address
Please reply in the news group

I recently built a Franklin antenna for 2.4Ghz.
I highly reccommend it. Google WiFi and franklin antenna.

Jimmie

On Nov 21, 8:47*pm, JIMMIE wrote:
On Nov 21, 2:38*am, DaveC wrote:

Looking for outdoor omni "whip" antenna for 2.4 GHz.

Is there any reason to not go for the greatest gain antenna, given that cost
is not too important (within reason)?

There are scads of these on the 'net. I'm looking for someone who has
experience with one or more of them and can make a recommendation for one.

Thanks,
--
DaveC

This is an invalid return address
Please reply in the news group

I recently built a Franklin antenna for 2.4Ghz.
I highly reccommend it. Google WiFi and franklin antenna.

Jimmie

Also look up AMOS antenna. They are easy to make and work well


Jimmie

JIMMIE wrote:


Also look up AMOS antenna. They are easy to make and work well


Jimmie

Jimmie:

Excellent link, thanks; I will homebrew this when I get the time ...

However, with the reflector plate, it is not OMNI; but, for me this
would NOT be a problem ...

Good work,
regards,
JS

On Sat, 22 Nov 2008 12:08:54 -0800 (PST), JIMMIE
wrote:

On Nov 21, 8:47*pm, JIMMIE wrote:
I recently built a Franklin antenna for 2.4Ghz.
I highly reccommend it. Google WiFi and franklin antenna.
Jimmie

Also look up AMOS antenna. They are easy to make and work well
Jimmie

AMOS, Franklin, Sector, et al:
http://pe2er.nl/wifisector/
http://yu1aw.ba-karlsruhe.de/vhf_ant.htm
http://www.qsl.net/yu1aw/vhf_ant.htm
http://www.brest-wireless.net/gallery/AntenneAmos
http://www.brest-wireless.net/wiki/materiel:amos
http://www.brest-wireless.net/forum/viewtopic.php?id=75&p=2

NEC2 model:
http://802.11junk.com/jeffl/antennas/AMOS-7/
http://802.11junk.com/jeffl/antennas/AMOS-5/ (not optimized yet)

AMOS design:
http://www.qsl.net/yu1aw/amos_article.pdf

Inverted AMOS:
http://www.qsl.net/yu1aw/invertamos.pdf


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

On Sun, 23 Nov 2008 15:32:02 -0800, Jeff Liebermann
wrote:

NEC2 model:
http://802.11junk.com/jeffl/antennas/AMOS-7/
http://802.11junk.com/jeffl/antennas/AMOS-5/ (not optimized yet)

Fixed. I was feeling guilty so I ran it through the optimizer in
4NEC2. I haven't built a 5 dipole AMOS yet using these dimensions.

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

On Nov 23, 7:39*pm, Jeff Liebermann wrote:
On Sun, 23 Nov 2008 15:32:02 -0800, Jeff Liebermann
wrote:

NEC2 model:
http://802.11junk.com/jeffl/antennas/AMOS-7/
http://802.11junk.com/jeffl/antennas/AMOS-5/ *(not optimized yet)

Fixed. *I was feeling guilty so I ran it through the optimizer in
4NEC2. *I haven't built a 5 dipole AMOS yet using these dimensions.

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

I put one up I use with a WiFi repeater and I can see dozens of
wirless routers in my neighborhood. The antena i mounted at about
20ft on my chimney. There are about 8 or 9 with no security. If I so
chose I would never have to pay for internet service. There is another
subdivsion behind my house I havent even looked at that one yet.
Strange thing I know 3 of the people who have the open systems and
they are farly savy about these things. I wonder if they are leaving
them open on purpose.

Jimmie

JIMMIE wrote:

...
Strange thing I know 3 of the people who have the open systems and
they are farly savy about these things. I wonder if they are leaving
them open on purpose.

Jimmie

I do. "They" call it a "honepot" (google it), fun to mess with 'em ... :-)

Regards,
JS

"John Smith" wrote in message
...
JIMMIE wrote:

...
Strange thing I know 3 of the people who have the open systems and
they are farly savy about these things. I wonder if they are leaving
them open on purpose.

Jimmie

I do. "They" call it a "honepot" (google it), fun to mess with 'em ...
:-)

Regards,
JS

Perhaps they want to take the blame for everyone downloading bootleg porn,
music and movies until their ISP terminates or throttles them for abuse.
Either that or they are trying to log mac addresses of those who do.

John Smith wrote in
:

JIMMIE wrote:

...
Strange thing I know 3 of the people who have the open
systems and they are farly savy about these things. I
wonder if they are leaving them open on purpose.

Jimmie

I do. "They" call it a "honepot" (google it), fun to mess
with 'em ... :-)

Regards,
JS

I especially enjoy being the one they are trying to mess with,
port 563 SSL 1024 bit encrypted connection to amsterdam good
luck, !!! No-one wants to clobber those ports, if they do they
can't online bank LOL.

--
May You reep the poverrty You have Voted for.

On Sun, 23 Nov 2008 19:26:58 -0800 (PST), JIMMIE
wrote:

On Nov 23, 7:39*pm, Jeff Liebermann wrote:
On Sun, 23 Nov 2008 15:32:02 -0800, Jeff Liebermann
wrote:

NEC2 model:
http://802.11junk.com/jeffl/antennas/AMOS-7/
http://802.11junk.com/jeffl/antennas/AMOS-5/ *(not optimized yet)

Fixed. *I was feeling guilty so I ran it through the optimizer in
4NEC2. *I haven't built a 5 dipole AMOS yet using these dimensions.

I put one up I use with a WiFi repeater and I can see dozens of
wirless routers in my neighborhood. The antena i mounted at about
20ft on my chimney. There are about 8 or 9 with no security. If I so
chose I would never have to pay for internet service. There is another
subdivsion behind my house I havent even looked at that one yet.

If stealing internet service from the neighbors is your intended
purpose, you selected the wrong type of antenna. A sector antenna may
be a great idea for running a WISP or central access point, where
you're never sure of the direction the client radios are coming from.
It's a bad idea for use at the client end. The idea is to pickup as
little interference as possible. You're reception of 9 stations is a
problem as any one of these could provide sufficient interference to
make your pirated internet connection useless. I suggest you look
into a panel or dish antenna, which will provide a much narrower
horizontal beamwidth, with the added bonus of more antenna gain.

Strange thing I know 3 of the people who have the open systems and
they are farly savy about these things. I wonder if they are leaving
them open on purpose.

I was running an open access point at my office for a while. However,
I was also monitoring connection attempts and traffic. I figured that
nobody would bother. Wrong. I had some bum in a pickup truck and
camper, connect regularly to make VoIP phone calls. I had no problem
with him using the system and we eventually came to an arrangement.
However, he stupidly told all his friends, who immediately abused the
system, so I locked it up with a WPA password.

In another incident, one of my customers was in a hotel that wanted
real money to use their Wi-Fi. (This was about 6 years ago, before
the widespread proliferation of free Wi-Fi service). So, he connected
to a random open access point. The security on his laptop was more
than a little lacking (writable shared folders), resulting in the
installation of multiple trojan horses, spam bots, etc. I suspect the
open access point was an intentional trap set for hotel visitors.

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