I'm an Electronics Engineer, working for 17 years in Broadcasting area, both studio and transmission area. Descrete linear and non-linear devices, technology, and classical optimization of small systems is on my recent focus area. During all this time huge number of questions arised as well as the same number of answers are answerd. My moto is "Be positive to others, don't underestimate any one, tong sould be delayed than brain and say less than you know"