Craig Johnson, AA0ZZ, got his first ham license in 1964 at the age of 14.  He credits ham radio with sparking his interest in electronics and in pointing him toward a career in electrical engineering.  He received a Bachelors degree in Electrical Engineering and later an MBA.  

Craig lives in St. Paul, Minnesota.  He worked for Unisys for 35 years on the design/development of large, mainframe computers and operating system software but then switched to working with microprocessors professionally - doing hardware as well as software development for microprocessor controlled medical devices and "smart weapons" for the military. He holds seven US patents for his work in computer hardware and software.

With the combination of his engineering and computer experience, Craig loves to explore the overlap between computers and amateur radio that was opened up with the advent of microprocessors.  He developed many projects using microprocessors, especially for frequency synthesis (DDS and PLL) in VFOs.  He greatly enjoys helping others to understand how to use microprocessors in their own projects. 

Craig enjoys CW, operating QRP, DXing and contesting but he is happiest when he is tinkering, building, or experimenting with new designs, circuits and software.  

AA0ZZ 2016