Comba Launches Multi-Carrier Tower Bottom Solution

HONG KONG, Oct. 14 /PRNewswire-Asia/ — Comba Telecom Systems Holdings
Limited (“Comba” or the “Group”, Hong Kong Stock code: 2342), a leading
wireless enhancement solutions provider, announced the commercial availability
of its WCDMA/GSM mixed mode Multi-Carrier Power Amplifier (“MCPA”) Tower
Bottom Solution (“TBS”) for the North America and global market.

(Photo: http://www.newscom.com/cgi-bin/prnh/20091014/HKW010 )

At the same time, Comba announced it has signed a materials and services
agreement with a leading US wireless operator for the supply of the MCPA TBS.
This agreement was reached after extensive field and laboratory tests by the
operator where the MCPA TBS was deployed in mixed mode applications. Under
such conditions, Comba’s solution successfully broadcast GSM and WCDMA signals
simultaneously to meet key criterion for approval.

Deployed as part of a base station setup, Comba’s MCPA TBS allows
operators to optimize their network capital expenditure (“CAPEX”) and
operating expenditure (“OPEX”) for new and existing cell sites. The solution
helps to address the network infrastructure challenges facing many wireless
operators. With features such as mixed-code and multi-carrier compatibility,
operators installing the MCPA TBS can realize network CAPEX efficiencies by
increasing the number of carriers per cell site without additional
requirements for cables and antennas, thus freeing link budget to increase
cell site coverage. With high power MCPAs as an integral part of the MCPA TBS,
the requirement for multiple Single-Carrier Power Amplifiers (SCPAs) are
eliminated, thus reducing overall Base Transceiver Station (“BTS”) power
consumption and also failure rates of active modules to achieve lowered OPEX.
The MCPA TBS is designed to be easily scalable and facilitates network
upgrades to WCDMA and next generation network technologies.

Mr. Simon Yeung, Executive Director and Senior Vice President said, “We
are delighted to bring the MCPA TBS to the North American market. Featuring
one of the industry’s most advanced Doherty MCPAs and feed-forward
applications deployed in a TBS, the benefits of deploying this solution is
manifold — for example, the cost-saving aspects and effective capacity
expansion presents a compelling solution for operators to more efficiently
utilize their network CAPEX. In addition, the MCPA TBS is configurable for a
number of frequencies, thereby allowing for easy upgrades to WCDMA and next
generation network standards.”

Mr. Yeung further added, “We are also delighted to have signed the frame
agreement with the US wireless operator after successfully completing the
field trials. This is a positive proof of the performance and value that
Comba’s MCPA TBS solution brings to the customer. This agreement represents
an important milestone for us in North America. We have long supported the
local market and the MCPA TBS is a home grown solution from our Research &
Development center in California — the fact that one of our potential major
customers for this is a US operator is very encouraging.”

    MCPA TBS key features
    -- Supports up to 60MHz bandwidth with high linearity and efficiency MCPA
       technology
    -- Compatible with mixed modulation (GSM, EDGE, CDMA2000 1xEv-DO, WCDMA)
    -- High output power up to 160W per MCPA for enhancing BTS coverage
    -- Modular design and different configurations such as N+1, 4x4, 4x2, that
       support up to 3 sectors and provides various output power
    -- Supports external BTS alarm with voltage-free dry contacts
    -- Integrated bias tee which provides DC power to Tower Mounted Amplifier
    -- Graphical User Interface (GUI) with local and remote monitoring via PC
       browser
    -- Diagnosis/maintenance with Ethernet port
    -- Suitable for indoor and outdoor deployment with appropriate
       rack/cabinet designs

About Comba Telecom Systems Holdings Limited

Being one of the leading wireless enhancement solution providers in the
world, Comba is primarily engaged in the R&D and manufacturing of wireless
enhancement products including wireless enhancement solution, base station
subsystems & antennas, and wireless access system. The Group also provides
complete turnkey solutions and services to its global customers.
Headquartered in Hong Kong, Comba’s global operations include manufacturing
platform in China, R&D centers in China and the US, with over 35 offices
worldwide. For further information, please visit: http://www.comba-
telecom.com .

    For press enquiries:

    Strategic Financial Relations (China) Limited

     Ms Karen Hung    Tel:  +852-2864-4854  Email: karen.hung@sprg.com.hk
     Ms Arlene Wong   Tel:  +852-2864-4899  Email: arlene.wong@sprg.com.hk
     Ms Janice Au     Tel:  +852-2864-4874  Email: janice.au@sprg.com.hk
     Ms Winnie Kwong  Tel:  +852-2864-4839  Email: winnie.kwong@sprg.com.hk
     Fax:   +852-2527-1271

SOURCE Comba Telecom Systems Holdings Limited