TITLE: Technology Choices for Multifunctional Adaptive Radio, Radar, and Sensors ABSTRACT: The commercial investments in RF technology since 1990 have been tremendous and have led to innovations that have brought ubiquitous mobile communications to a billion people and begun the transition to a tetherless society. For a much longer period military RF technology investments have also been significant and can legitimately claim to have sparked the commercial RF revolution. With the cost of military systems now being a critical factor in determining whether they are fielded, there is great interest in applying commercial tools, techniques and technologies to military RF systems. The relationship between military and commercial RF technologies will be explored with emphasis put on what must be done to achieve cost effective military RF front ends. Interesting evolving technologies applicable to multifunctional systems will be discussed.