[134205] in North American Network Operators' Group
Re: 5.7/5.8 GHz 802.11n dual polarity MIMO through office building
daemon@ATHENA.MIT.EDU (Joel Jaeggli)
Wed Dec 29 00:53:12 2010
Date: Tue, 28 Dec 2010 21:51:48 -0800
From: Joel Jaeggli <joelja@bogus.com>
To: Anonymous List User <semi.anonymoususer@gmail.com>
In-Reply-To: <AANLkTi=cV+MFCdzQUMtBpBerdPiyNFG8622YVFasqMB7@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 12/28/10 8:48 PM, 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?
glazed windows (which is tin in general) are a problem... when most of
your radiation as being thrown right back at you that is a challange.
> 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
>
