The circuit of R80 front end section a. The front end filter and LNA The front stage filter is a stager style with two LC resonating circuits.L is D5x5 size, 4.5 turn(Estimated inductance is 68nH by WEB service "http://gate.ruru.ne.jp/rfdn/Tools/ScoilForm.asp#p1"). And C is 15pF. Between LC circuits…