11-13-2007, 10:40 AM
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 Re: 300m no LoS question...
neles wrote:
> 'Morning people,
>
> I have tried to do my homework before hand, so not to harass you
> people, but I guess it would be much more practical if someone here
> perhaps have an idea what would be the best way (if there is any,
> really) to make the following scenario work.
>
> [image: http://www.buzzartweb.com/neles-x2.jpg]
> 'GE perspective' (http://www.buzzartweb.com/neles-x2.jpg)
>
> It's simple, I hoped to connect my home PC with my office WiFi -
> distance is around 300 meters, no LoS - both places are at around same
> height though it doesn't make any difference - my office within the
> building is turned the opposite side from my home, it has 3 weak
> internal AP's (Airlive WL5460AP) as redundancy option for LAN - my IT is
> ok with me to use the WiFi from home if I can connect to it - the
> problem is that I don't have roof access neither in my office building
> nor in my home building. Also, I can't mount anything on the outside of
> my office building. There is a small balcony where I could mount
> something small, not overly obvious, but it would be outside at least.
>
> However, I have the authorization to mount any practical piece of
> equipment inside the office - stronger AP, router, another PC, even
> antenna, whatever I can put on or under my desk or closet in the
> office.
>
> As for my home, I can also mount whatever I want on the outside window
> that is pointing roughly at the direction of the office. At home, I have
> a lousy Ralink turbo wireless card with a rubber duck antenna, and due
> to reflection between buildings I can even catch some local WiFi
> networks but pretty weak.
>
> The Google earth image is depicting the reallife situation. A building
> and a few houses are in between home and office.
>
> Bow, I don't have a lot of cash, but I am willing to invest, since at
> office I have unrestricted access to 2x155Mb backbone. Network is
> protected with MAC filtering and WEP, but as I said, I am authorized to
> use it if only I can somehow connect to it. Also, with my Nokia 9500
> Communicator smartphone, it's internal WiFi antenna at 100mw (claimed
> anyway) got the Good signal of one of the AP's at some 50 meters
> outside.
>
> Any suggestion or comment will be greatly appreciated.
>
> Sincerely.
>
>
> ------------------------------------------------------------------------
> View this thread: http://www.wirelessforums.org/hardware-discussion/300m-no-los-question-32048.html
> http://www.wirelessforums.org
>
No Los, no WiFi. In fact, you need better than "keyhole" LoS -- for
starters, see: http://webopedia.internet.com/TERM/F/Fresnel_Zone.html
--
Cheers, Bob  |
Linear Mode
