Professor Albert D. Frost retired from formal department activities in January, 1995 after 38 years as a teacher and researcher. Dr. Frost grew up in Boston, MA, attended Brookline High School, received a BS in Physics from Tufts, an MA in Applied Physics from Harvard and a DSc from MIT in 1952. He taught in the Physics Department at Tufts University until 1957 when he came to UNH. He was instrumental in leading the Department into the research arena through early satellite tracking (Sputnik), ionosphere measurements, and upper atmosphere wind determinations with support from AFCRL (now the Phillips Laboratory at Hanscomb Field, Bedford, MA).

Research endeavors carried out by Dr. Frost have been many and varied. His early satellite tracking led to his development of the parametric amplifier antenna for which he holds a US patent. His leave in 1963 to work at the Institute for Defense Analysis resulted in a developing interest in acoustic gravity waves and a project with Columbia University to measure infrasound waves. His sabbaticals at Jodrell Bank and at Sheffield University in England lead to the development and use of radio interferometer techniques in instruments for ionosphere and upper atmosphere measurements. He organized and carried out, with colleague Ron Clark, two radio experiments during solar eclipses, one in Peru in 1966 and another in South Africa in 1972. His ever present interest in acoustics surfaced again in an application of ultrasound in acoustic probing of art objects for the Research Lab of Archaeology and History of Art at Oxford University in England, for our own Smithsonian, and at King's College, University of London. Recently, Prof. Frost has been a consultant for the FAA and US Coast Guard at the US Department of Transportation, Cambridge MA doing signal analysis and radio wave propagation studies for navigation systems involving LORAN-C and GPS.

Throughout his teaching career Dr. Frost taught courses in electronic circuits, electromagnetics, instrumentation and acoustics. His broad experience in the practical design of circuits, antennas, and acoustic instrumentation has enabled him to make many creative contributions to the EE program in the development of laboratory experiences for our undergraduate students. Many of you will probably remember J-LAB with Prof. Frost. Since his retirement he has continued to give freely of his time in support of J-Lab teaching activities by Frank Hludik. This fall Al has also agreed to organize a new laboratory associated with the senior-graduate level course in Acoustics to be taught by Prof. Sivaprasad.

In retirement Dr. Frost plans to continue with his many interests here in the Department including research on piezoelectric and ultrasonic transducers, as well as an ongoing role as research consultant with DOT. His wife Diana tells me that they will be traveling too. Congratulations Al and Diana, Enjoy-Enjoy-Enjoy.