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From: Jeff Liebermann on 11 Jan 2010 15:35
On Mon, 11 Jan 2010 18:12:58 +0000, Bob <bob(a)invalid.invalid> wrote:

>On 11/01/2010 17:26, Jeff Liebermann wrote:
>
>> The problem here is that there's zero information about the layout,
>> topology, environment, or available equipment required. All I know is
>> that it's "wide area" and "outdoor". To me, that means directional
>> antennas and long range, which means forget about using MIMO. Note
>> that there are no commercial MIMO high gain antennas (yet).
>
>Aruba do have a 14dB Antenna for the 5GHz band but the data about it is
>negligible.
><http://www.arubanetworks.com/pdf/products/ap-ant-93_ss.pdf>
>
>"The antenna integrates 3 differently polarized elements in a single
>antenna radome. Dual Slant +/-45� and Vertical polarisation."

Looks like I'm behind the times a few months. Googling for "802.11n
antennas" yields a few others with similar designs and intentions:

<http://www.terra-wave.com/shop/80211n-mimo-solutions-80211n-mimo-antennas-c-1_2.html>
About $250/ea.


--
Jeff Liebermann jeffl(a)cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
From: who where on 11 Jan 2010 18:25
On Sun, 10 Jan 2010 20:25:15 -0800, Jeff Liebermann <jeffl(a)cruzio.com>
wrote:

>On Sun, 10 Jan 2010 15:41:16 -0700, Tony Hwang <dragon40(a)shaw.ca>
>wrote:
>
>>Billz wrote:
>>> Can someone let me know the latest in getting a house, guest house and
>>> the outdoor areas set-up for Wi-Fi? I can't imagine a state of the art
>>> wireless N covering major areas. Repeaters seem to be questionable. Is
>>> the a way to completely ring in an area both indoors and outdoors?
>>>
>>> Thanks in advance
>
>>Hmmm,
>>Omni directional antenna(colinear kind) on a tower to increase LOS?
>
>Ummm... not a great idea. A decent high gain omni antenna will have a
>rather narrow vertical radiation pattern. Put that on top of a tall
>tower and you end up with great coverage at the horizon, and very
>little RF going down under the antenna. If you're going to do a
>tower, think about sector (panel) antennas with downtilt.

You don't have to use expensive panels to achieve downtilt. Colinears
can be constructed for downtilt, and are *often* in the two-way radio
industry.

But I doubt tower-mounting is the best solution foir the O/P.
From: Krypsis on 9 Jan 2010 08:38
Billz wrote:
> Can someone let me know the latest in getting a house, guest house and
> the outdoor areas set-up for Wi-Fi? I can't imagine a state of the art
> wireless N covering major areas. Repeaters seem to be questionable. Is
> the a way to completely ring in an area both indoors and outdoors?
>
> Thanks in advance

My suggestion is to find a suitable location for a bridge device that is
central to all areas requiring coverage taking into account signal loss
through walls. This would ideally be outdoors so the device would need
to be weatherproof. I am currently using a Ubiquiti Networks Bullet M2
coupled with an 6dB gain omnidirectional outdoor antenna. The device
connects wirelessly into my home network and retransmits the signal as
well. It also transparently passes the home network ESSID through to the
bridged location. The Bullet is powered through a Power Over Ethernet
(POE) connection and can also receive the signal via its ethernet
connection. I had originally thought I might need 2 Bullets back to back
but it seems this may not be the case as my temporary arrangement seems
to be working as I envisaged.

http://www.ubnt.com/products/bulletm.php

I am just testing concepts at this stage but intend ultimately to use a
25 dB grid array antenna for extreme directionality. I need to bridge
the 50+ kilometres between my two houses.

The bullet can be fitted directly to whatever antenna you find suitable
and, as another poster suggests, a flat panel might provide you with a
better radiation pattern.

Note also that the Bullet M2 can transmit from 10 milliwatts to 1,000
milliwatts. Power output can be varied to suit the legal requirements in
your locale.

Krypsis

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