Pre-graduation jobs during high school and college: electronic musical instrument and stereo equipment repair; television broadcast engineering at WMPB-TV, Owings Mills MD (UHF transmitter, network, videotape and video operations); computer operator; minicomputer system administration.

Professional: Member of Technical Staff, Bell Labs, Naperville, IL, 1978-1982; Member of Technical Staff, Bell Labs, Murray Hill NJ 1982-1984; Member of Technical Staff, Bell Communications Research, Morristown NJ, 1984-1991; Vice President-Technology, Qualcomm Inc, San Diego CA, 1991-present.

Professional accomplishments include the development of architecture and protocols for CDMA IP packet data services and the invention of the RTS/CTS scheme adopted by IEEE 802.11, the latter being originally conceived for possible ham packet radio use.

Technical interests: computer networking & protocols; computer security; open source software, especially GNU/Linux; digital modulation & coding; satellite communications; electric power generation, especially solar; electric vehicles.

Ham Radio: First licensed as WN3RVL, November 1971; Upgraded to Advanced (WA3RVL) in Feb 1972; Extra in June 1973; Changed call to KA9Q in 1980. Also held WB2AJX as a secondary callsign during the mid 1970s at Cornell.

Active in AMSAT, TAPR.

Married to Kimberly Daub since October 2000; no kids.