[134204] in North American Network Operators' Group
Re: 5.7/5.8 GHz 802.11n dual polarity MIMO through office building
daemon@ATHENA.MIT.EDU (Michael Painter)
Wed Dec 29 00:33:04 2010
From: "Michael Painter" <tvhawaii@shaka.com>
To: "Anonymous List User" <semi.anonymoususer@gmail.com>,
<nanog@nanog.org>
Date: Tue, 28 Dec 2010 19:32:16 -1000
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Anonymous List User wrote:
> For architectural and building management reasons we cannot mount our
> antennas in a rooftop or outdoor location at either end. The distance
> between two buildings is 1.5 km, and the fresnel zone is clear. Antennas
> need to be located indoors at both ends and will be placed on small speaker
> stand tripod pointing at windows. This has been done successfully before
> with 2.4 GHz 802.11g equipment and a link from an office in the Westin to a
> nearby apartment building, but I am unsure of what effect glass will have on
> 5 GHz. Has anyone tried this?
>
> The goal of this link is to achieve a 10 Mbps+ full duple bridge to a
> building which is only serviced by ADSL2+ Telus service in a Western
> Canadian city. Telus' upstream speed offering do not exceed 1 Mbps.
>
> Equipment. These have been used successfully for MCS13/MCS14 50 Mbps+
> bridges at 11 km distance between towers.
>
> http://ubnt.com/nanobridge
>
> http://www.ubnt.com/downloads/nb5_datasheet.pdf
Imo, Ubiquiti stuff is so cheap ($95 for the 25dBi version), it's probably more cost effective to just buy it and try it
rather than spending the time analyzing the glass (on both ends).
