Adaptive Broadband Business Growth Drives Expansion of Technical Team -- Adds Sr. VP-engineering and New Chief Technology Officer.

Business/Technology Editors

SUNNYVALE, Calif.--(BUSINESS WIRE)--June 12, 2000

ADAPTIVE BROADBAND(TM) CORPORATION (Nasdaq: ADAP) announced the appointment of Wayne R. Hoffman to the new position of senior vice president of engineering, and S. Michael Yang as its new chief technology officer and senior vice president. Both individuals report directly to Dr. Daniel L. Scharre, executive vice president.

AB-Access(TM) Focus: Market Access, Technology Partnerships

"Development of our flagship fixed wireless broadband product has progressed to the point where we need to focus on building out infrastructure around market access and technology partnerships. We have met our commitments for releases in the U-NII, MMDS, 3.5 GHz and LMDS bands, and have demonstrated a portable version, as well as the addition of voice over Internet Protocol. Our next phase of implementation is focused on expanding our market access and managing our technology and channel partnerships for maximum long-term success," commented Dr. Daniel L Scharre, executive vice president. "I am pleased that we are able to attract such talent as Wayne and Michael to spearhead our technical initiatives so that I can concentrate my efforts on the next phase of our growth." Scharre indicated that all of Adaptive Broadband's engineering staff reports to Hoffman, who is charged with ensuring that the AB-Access product meets customers' requirements. Yang's charter is to ensure that the company's technology strategy takes advantage of current and next-generation technologies. The company's director of industry standards, Demos Kostas, reports to Yang.

Wayne Hoffman: Strong Telecom Business and New Product Development Leadership

Hoffman's industry experience spans 17 years in product management and development at leading equipment manufacturers including Harris Corp; Glenayre's Wireless Messaging Group (as vice president of RF product management and engineering); and most recently, Thomcast Communications as chief technology officer and vice president of engineering. He has been responsible for development and deployment of a wide range of products with state-of-the-art technologies, such as base station product lines from UHF to microwave; ASIC-based products including 100Mbps fiber optic multichip modules for avionics communications; satellite communications systems; and software-based products such as network management systems for wireless communications networks. Hoffman holds an MS in Engineering Management from Florida Institute of Technology and a BS in Electrical Engineering from the University of Kentucky.

Michael Yang: Heavy Wireless Telecom Advanced R&D Experience

Yang has spent his 20-year career designing and developing next-generation products at leading microwave radio and computer network manufacturers, including Hewlett-Packard Laboratories, Harris Farinon, Hyundai Electronics America, and most recently, Tadiran Microwave Networks. He has been responsible for the successful development of leading edge products such as a 155 Mbps digital radio with complex ASICs, and high-order modulation schemes and a CDMA base station. He did advanced development on 10 Mbit Ethernet access using twisted pair, ISDN access and digital signal processing applications. Yang holds a Ph.D. in Electrical Engineering from UCLA and a BS in Electrical Engineering from Seoul National University.

About AB-Access

The AB-Access fixed wireless broadband product bridges the last mile, replacing the local loop for business and residential subscribers. It offers data transmission at rates up to 25 Mbps, which provides the capability for real-time video conferencing, transmission of full streaming video, web surfing, and transmission of data files - all simultaneously and over one connection. Product bandwidth is planned to expand to 100 Mbps in 2000.

AB-Access technology spans the frequency range from 2 to 42 GHz. The first releases for AB-Access are for applications using the 5 GHz U-NII (Unlicensed National Information Infrastructure) and 2.5 GHz MMDS (Multi-channel, Multi-point Distribution Service) frequency bands. Adaptive Broadband recently announced a 27.5-31.3 GHz LMDS (Local Multipoint Distribution Service) version of AB-Access and a 3.5 GHz version for the European market.

Point-to multipoint wireless networks being deployed with AB-Access include transmission hubs that contain six transmitter/receivers, each having 60-degree access points for complete 360-degree coverage. These access points are each serviced by an Asynchronous Transfer Mode (ATM)-configured transceiver with a 25 Mbps channel, which can be shared by users because bandwidth is dynamically assigned. This scheduling is made possible by the product's proprietary MAC (media access control) layer, as well as by ATM's small fixed cell length. The technology allows bandwidth to be supplied with cell-by-cell precision, essentially providing packet-on-demand capability. The ultimate result is that bandwidth of up to 25 Mbps is readily available to all users on the network.

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 product is a leading commercial choice for fixed broadband wireless communication.

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 telecommunications 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, 1999.