Horizon Wi-Com First to Launch WiMAX in Major U.S. Cities With Navini and Black & Veatch

Horizon Wi-Com First to Launch WiMAX in Major U.S. Cities With Navini and Black & Veatch

June 12, 2007

New York, Boston, Washington among the first to experience
true personal broadband


    RICHARDSON, Texas, June 12 /Xinhua-PRNewswire/ --
Horizon Wi-Com is trialing its high-speed wireless
broadband service in major U.S. cities in the Northeast
region using 802.16e compatible equipment from Navini
Networks, the global leader in providing broadband wireless
access solutions.

    Phase I of the deployment will implement service in
Boston, New York, Philadelphia, Washington DC, Baltimore,
Pittsburgh, Buffalo, Richmond, and Cincinnati.  Horizon
Wi-Com purchased the WCS A Block spectrum previously owned
by Verizon.

    "We are first.  We have completed Phase I and are
now trialing subscribers in some of the most exciting
cities," said Ron Olexa, President of Horizon Wi-Com.
"We will provide high-speed internet access to
residential and business users in markets containing
approximately 70 million POPs."

    "Navini's software upgrade to Mobile WiMAX(TM)
will allow Horizon to implement the first network
deployment in major U.S. cities," said Roger Dorf,
Navini's president and CEO.  "Delivering WiMAX in the
U.S. is a key strategic opportunity for us and Horizon
Wi-Com is the right partner."

    The deployment features Navini's Ripwave(R)MX8 platform
that is being certified for 802.16e mobile WiMAX with
Navini's Smart WiMAX(TM) solution.  Smart WiMAX(TM)
combines Mobile WiMAX(TM) with the Smart Beamforming
technology currently in commercial service around the
world, with beamformed MIMO, which can reliably double the
data throughput for WiMAX subscribers.  

    This allows Horizon Wi-Com to deploy less base stations
with more complete coverage and higher speeds. Networks are
already live and serving customers in each of the major
cities covered by the Horizon licenses.  Full commercial
launch will begin after Navini completes WiMAX Forum Wave 2
certification.  

    Partnering with Black & Veatch for site build-out
was a key element in the successful deployment. Horizon
Wi-Com's aggressive deployment schedule required
comprehensive site development and construction support. 

    "Black & Veatch was selected to provide the
necessary support and program management due to their
experience and past success with other wireless
projects," stated Olexa. 

    "This project has been an excellent opportunity
for Black & Veatch to showcase some of its key core
project competencies such as site acquisition, engineering,
field craft skill set, field construction management and
overall project management.  This partnership to complete
Phase I sites with Horizon Wi-Com and Navini has proven to
be a successful combination of talented resources,"
stated Tim Cummings, Project Manager, Black & Veatch. 


    About Horizon Wi-Com LLC:

    Horizon Wi-Com is a Wireless System Operator
headquartered in Alexandria, VA.  Horizon owns 10 MHz of A
Block WCS spectrum in MEA 1, 2, 3, 4, 5, 6, 12, and 13. 
These MEA's include the cities of Boston, New York,
Buffalo, Philadelphia, Pittsburgh, Baltimore, Washington
DC, Richmond, and Cincinnati Dayton.  Horizon Wi-Com is
currently planning deployments in these markets that will
provide wireless broadband service to customers. Service is
planned to commence in the second quarter of 2007.  

    http://www.horizon-wicom.com

    About Navini Networks:

    Navini Networks is the leader in providing portable,
plug-n-play broadband wireless access solutions, with the
largest commercial deployments in the world, over 70
commercial networks in 6 continents and strategic
partnerships with industry leaders.  Navini is the only
company that delivers Smart WiMAX(TM) -- the combination of
mobile WiMAX with Smart Beamforming & beamformed MIMO. 
Navini's Ripwave(R) MX portable, zero-install(TM),
non-line-of-sight (NLOS) solution consists of customer
modems, base stations, and element management systems (EMS)
that run in the full range of spectrums with software
upgrades to the IEEE 802.16e standard. 

    Navini Networks is a principal member of the WiMAX
Forum and the IEEE 802.16e committee and is headquartered
in Richardson, Texas.  http://www.navini.com . 

    About Black & Veatch

    Black & Veatch is a leading global engineering,
consulting and construction company specializing in
infrastructure development in energy, water,
telecommunications, management consulting, federal and
environmental markets. Founded in 1915, Black & Veatch
develops tailored infrastructure solutions that meet
clients' needs and provides sustainable benefits. Solutions
are provided from the broad line of service expertise
available within Black & Veatch, including conceptual
and preliminary engineering services, engineering design,
procurement, construction, financial management, asset
management, program management, construction management,
environmental, security design and consulting, management
consulting and infrastructure planning. With more than $2
billion in revenue, the employee-owned company has more
than 100 offices worldwide and has completed projects in
more than 100 countries on six continents. 

    http://www.bv.com .


    For more information, please contact:

     Ron Olexa 
     Horizon Wi-Com LLC
     Tel:   [phone]
     Email: [e-mail]

     Maryvonne Tubb 
     Navini Networks, 
     Tel:   [phone]
     Email: [e-mail]

     George Minter 
     Black & Veatch, 
     Tel:   [phone]
     Email: [e-mail]