The question about design a radio to be used outdoor by using amp

[pig8190]

I just curious that which family of transistor works best as an amplifier in a radio to used outdoors ? BJT, JFET, EM-MOS,NMOS, or DM-MOS ??? sometimes I just can't understand what different between these types and what require for designing radio. thank you very much

 

[chuckey]

You can use any sort of transistor, its almost like saying I want to go from A to B, which is best a Ford , Honda, Toyota or a Volkswagen?. For some specialized areas some types are definitely preferred, some times simplicity of circuitry and low cost are the choice drivers.
frank