[HCRA] Re: World Record Wi-Fi Distance Link

Sat Aug 25 12:43:16 EDT 2007

Someday you'll explore DX above 30 MHz Mike! LOL

Dan S
KO1D\4

Sent via BlackBerry by AT&T

-----Original Message-----
From: "Mike DeChristopher" <mdechristopher at comcast.net>

Date: Sat, 25 Aug 2007 11:53:32 
To:<HCRA at mailman.qth.net>
Subject: [HCRA] Re: World Record Wi-Fi Distance Link

______________________________________________
-------Hampden County Radio Association-------
-----------e-mail list (reflector)-------------
______________________________________________
Boy, <sarcasm> that sure sounds a lot easier than turning on an HF radio and 
communicating.  Sounds a lot cheaper, too </sarcasm>.

The article mentions at one point: "...we'd like to realize a new wide-band 
digital network, to connect all Italian ham radio users to each other and to 
other services..."

Well, we do have a network that connects all Italian ham radio users to each 
other and to other services...in fact, it connects all ham radio users 
around the world to each other.  Its called HF, and may not quite be 
wide-band, but I'm sure can bridge the gap between Sardinia and mainland 
Italy.  God knows it bridges the gap between Italy and W1 all too often.

It seems to me that a good deal was lost in translation or misunderstanding 
between CISAR and Ubiquiti.

______________________________
Mike DeChristopher, K1KAA
k1kaa at arrl.net

----- Original Message ----- 
From: "Daniel Sullivan" <djs13 at hotmail.com>
To: <hcra at mailman.qth.net>; <vws at viennawireless.org>
Sent: Friday, August 24, 2007 12:49 PM
Subject: [HCRA] World Record Wi-Fi Distance Link

> ______________________________________________
> -------Hampden County Radio Association-------
> -----------e-mail list (reflector)-------------
> ______________________________________________
> Although a press release for a business the business was started by hams 
> in Italy. Life can be fun off of 2m! Lots of technical details included 
> for those inclined to replicate the link.
>
> Dan S
> KO1D
>
>
>
> http://biz.yahoo.com/bw/070822/20070822005202.html?.v=1&printer=1
>
>
> Press Release Source: Ubiquiti Networks
>
> World Record Wi-Fi Distance Link Powered by Ubiquiti
> Wednesday August 22, 9:03 am ET
>
> SAN JOSE, Calif.--(BUSINESS WIRE)--Ubiquiti Networks, a leading innovator 
> in outdoor wireless broadband solutions, and the Italian Center for Radio 
> Activities (C.I.S.A.R), an association founded by a group of Italian radio 
> amateur operators, today announced the new world record for a 5 GHz Wi-Fi 
> link achieving a distance of 304km (188.89 miles).
>
> Source: Ubiquiti Networks
>
> · View Multimedia Gallery
>
>
> The link was established using Ubiquiti's XtremeRange5 High-Power Carrier 
> Class mini-PCI radio modules and 35dBi 5 GHz parabolic dish antennas. The 
> link extends from Sardinia Island to Central Italy achieving data-rates of 
> about 5Mbps.
>
> What does the link do and why is it important?
>
> It allows ham operators on Sardinia Island to stay in touch with their 
> community on the Italian Peninsula. "At C.I.S.A.R, we have a 'superb' 
> project," said Mr. Mirco Paesante of the C.I.S.A.R. "After successfully 
> inter-connecting the whole Italian country with analog FM repeaters, we'd 
> like to realize a new wide-band digital network, to connect all Italian 
> ham radio users to each other and to other services (Echolink, ATV, dstar, 
> etc...) provided by our associations. This link was particularly 
> important, because in the event of an emergency, it will provide 
> communications with authorities for help."
>
> How did we make it work?
>
> "To make this link possible we chose the Ubiquiti Networks XR5 card 
> because we get the best signal sensitivities and because no other card 
> currently available on the market can achieve same results," said 
> Paesante. "The alignment of two 35dBi antennas at 304km (188.89 miles) 
> spanning sea and land is a very difficult and complicated technical 
> endeavor, but with the Ubiquiti Networks XR5 this was made simple without 
> the need for additional devices. This saved us a lot of time, expense, and 
> resources."
>
> The first alignment was made by providing a beacon through a 
> semi-directional antenna (short-backfire 17dBi, 25 degrees V, 25 degrees 
> H) on the Sardinia Island and one of the two 35dBi antennas on Monte 
> Amiata (Amiata Mountain) about 5,220 feet (1,740m) above sea level. 
> Without "Ubiquiti Networks" XR5, we would have to purchase a power 
> amplifier and lose a lot of time aligning the antennas (which has a very 
> narrow lobe).
>
> "We are very excited with C.I.S.A.R.'s achievement and proud to be a part 
> of it. When we set out to design the XR5 radio, our goal was to design the 
> highest performance WLAN radio in the market without compromise," said 
> Robert J. Pera, President at "Ubiquiti Networks."
>
> About Ubiquiti Networks:
>
> "Ubiquiti Networks" designs, develops and markets groundbreaking flexible, 
> compact wireless broadband equipment ideally suited for network operators, 
> large OEM's, WISP's and military applications. "Ubiquiti Networks" 
> products comply with industry broadband standards, including WiMAX, Wi-Fi 
> and are designed to work with standards-based customer premise equipment. 
> For more information, please contact sales at ubnt.com 408-942-3085
>
> About C.I.S.A.R.:
>
> Centro Italiano di Sperimentazione Attivita Radiantistiche (C.I.S.A.R.) is 
> a non-profit association founded by a group of Italian radio amateur 
> operators in 1981. Its main activities are in VHF and upper band 
> experimentation, interconnecting FM and digital repeaters, providing 
> support for the radio communication community, and organizing scholastic 
> conferences on radio topics. For more information, please contact Mirco 
> Paesante, iz3had at cisar.it or segreteria at cisar.it
>
> MULTIMEDIA AVAILABLE: 
> http://www.businesswire.com/cgi-bin/mmg.cgi?eid=5476853
>
>
> Contact:
>
> Ubiquiti Networks
> Robert Pera, 408-942-3085
> sales at ubnt.com
>
> Source: Ubiquiti Networks
>
> _________________________________________________________________
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> ------Hampden County Radio Association-------
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> -Jim, KK1W  -  jmullen at rockys.com
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------Hampden County Radio Association-------
An ARRL Special Services Club celebrating 60 years
------------http://www.hcra.org------------
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Address any comments to:
-Jim, KK1W  -  jmullen at rockys.com
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