Adaptive Broadband Appoints John P. Skoro Senior Vice President of Sales and Market Development.

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Business Editors/Technology Writers

SUNNYVALE, Calif.--(BUSINESS WIRE)--April 26, 2000

Industry-recognized Wireless Expert to Lead Global Market Development

Efforts

Adaptive Broadband Corporation (Nasdaq National Market: ADAP) today announced the appointment of John P. Skoro to the position of senior vice president of sales and market development. He will direct the company's sales and support team for AB-Access(tm) wireless broadband products, and will report to Salvatore S. Benti, executive vice president.

Wireless Broadband Expert

Skoro was most recently marketing director for Nortel Network's global broadband wireless access product group, overseeing product and marketing strategies for the company's Reunion point-to-multipoint wireless broadband products (LMDS). He previously was director of marketing for Nortel Networks' Broadband Networks Inc. (BNI) business unit. Skoro has also held positions with Motorola. He is a frequent speaker and published authority on broadband wireless topics and industry issues.

LMDS Expansion

"A recognized industry spokesperson, John Skoro brings a wealth of experience in broadband wireless communications to Adaptive Broadband, particularly in the LMDS market," Benti said. "He is a timely addition to our team as we introduce cost-effective technology for LMDS. John has extensive customer relationships within the LMDS industry; his global market experience and regulatory knowledge will be instrumental in shaping our strategic decisions as we enter this arena."

Skoro's technical strength extends beyond wireless into end-to-end networking. He has extensive experience in architecture, development and deployment of wireless technologies, including broadband ATM and IP, cellular, ESMR and Land Mobile Networks.

AB-access is being deployed commercially in the unlicensed U-NII band, with introductions planned this year for the European 3.5 GHz, MMDS and LMDS spectrums. AB-Access has generated more than $1-billion of contracted five-year demand since inception.

About AB-Access

AB-Access 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. Adaptive Broadband also plans to offer a portable version of AB-Access 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 plans to introduce an AB-Access product for the 3.5 GHz market in Europe during 2000.

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 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) software, 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 (http://www.adaptivebroadband.com) is a data networking solutions company that has developed leading-edge technology for the deployment of point-to-multipoint broadband wireless communications in microwave through millimeter-wave spectrum. Its AB-Access product is a leading commercial choice for fixed broadband wireless communications.

The foregoing includes forward-looking statements, such as Adaptive Broadband's potential success in developing new and enhanced products, 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, delays in new product developments, delays in receipt of orders or in the shipment of products, dependence on evolving telecommunications and Internet markets and success in implementing the company's strategic plan. For a more detailed discussion of these and other factors, see "Risk Factors" contained in the company's Annual Report on Form 10-K for the fiscal year ended June 30, 1999.