Adaptive Broadband Named WCA Liaison to IEEE Working Group On Fixed Broadband Wireless Technology.

Business Editors

SUNNYVALE, Calif.--(BUSINESS WIRE)--Oct. 31, 2000

Dr. Demos Kostas Provides Leadership to Drive Standards for the

Broadband Access Market

ADAPTIVE BROADBAND CORPORATION (Nasdaq National Market:ADAP) announced today that its director of industry standards, Dr. Demos Kostas, will be a liaison for the Wireless Communications Association International (WCAI) with the IEEE 802.16 Working Group on broadband wireless access standards. The IEEE 802.16 is charged with developing standards and recommending practices to support the development and deployment of fixed broadband wireless access systems. The group is a unit of the IEEE 802 LAN/MAN Standards Committee, the premier transnational forum for wireless networking standardization and the source of Ethernet standards.

Dr. Kostas is actively involved in several leading U.S. and international organizations that are establishing industry standards for fixed broadband wireless access technology in both the licensed and unlicensed frequency bands. In addition to his work with the IEEE 802.16 Working Group, he leads the WCAI Engineering Committee's Task Group on Fixed Wireless Access in the U-NII (Unlicensed National Information Infrastructure) band.

Dr. Kostas is also a liaison for the sub-11 GHz Fixed Wireless Access Group of the European Technical Standard Institute's (ETSI) Broadband Radio Access Network (BRAN) Group in its interaction with the IEEE 802.16.3 Task Group. BRAN is involved in the development of a technical report on the functional requirements of the below-11 GHz fixed wireless access systems. The IEEE 802.16.3 Task Group is developing the Fixed Broadband Wireless Access Air Interface Standard in the licensed 2-11 GHz frequency bands.

"Adaptive Broadband has taken a leadership role in standards development to help speed the commercialization of this exciting technology, while advancing the interests of carriers who are deploying fixed broadband wireless services," Dr. Kostas said. "The WCA's overriding mission is to support the thousands of wireless carriers across the nation and internationally who are seizing on the opportunity to deliver ultra-high-speed Internet access with fixed broadband wireless access technology."

Adaptive Broadband is a leading technology developer in this industry with its AB-Access(TM) product. AB-Access has generated over $1.5 billion of contracted five-year demand since inception. Deployments are underway in both U.S. and Asian markets, while deployments in Europe are anticipated soon following the company's recent development of a product for the 3.5 frequency used there.

About AB-Access

The AB-Access fixed wireless broadband platform bridges the last mile, replacing the local loop for corporate and small business subscribers. Combining a leading packet-on-demand technology and time division duplexing, it offers data transmission at rates up to 25 Mbps. This provides the capability for voice, real-time video conferencing, transmission of full streaming video, web surfing, and transmission of data files - all simultaneously and over one connection.

About Adaptive Broadband

Adaptive Broadband (www.adaptivebroadband.com) is a data networking solutions company that is developing leading-edge technology for the deployment of broadband wireless communication over the Internet. Its AB-Access platform is a leading commercial choice for fixed broadband wireless communication. AB-Access technology spans the frequency range from 2 to 42 GHz. While the first releases for AB-Access are for applications using the 5 GHz U-NII (Unlicensed National Information Infrastructure), 2.5 GHz MMDS (Multi-channel, Multipoint Distribution Service) and 3.5 GHz (International WLL) products are also available. Additionally, Adaptive Broadband recently announced an LMDS (Local Multipoint Distribution Service) version of AB-Access. Currently being deployed at the ultra-high speed of 25 Mbps, both transmitting and receiving, product bandwidth is planned to increase to 50 Mbps in early 2001, as requested by customers. Products with 100 Mbps capabilities are planned for 2001 as evolving customer demands warrant. Currently positioned as a fixed offering, portable versions of AB-Access are planned to coincide with the expanded roll-outs of fixed wireless broadband services in 2001.

The foregoing includes forward-looking statements, such as Adaptive Broadband's potential success in product development, that involve risks and uncertainties. Actual events or results may differ materially from those suggested by the forward-looking statement. Factors that could cause actual events or results to differ materially include, but are not limited to, fluctuations in quarterly results, delays in receipt of orders or in the shipment of products, delays in the development of data communications and Internet markets and delays in product enhancements. For a more detailed discussion of these and other factors, see "Risk Factors" contained in Adaptive Broadband's Annual Report on Form 10-K for the fiscal year ended June 30, 2000.