[HCRA] World Record Wi-Fi Distance Link

[Daniel Sullivan]

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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