hat
Se PA inite ki konpoze de PA etap premye ak inite final PA etap yo. Etap premye PA inite a konsiste de yon modil ak tranzistò yon ak adopte yon klas-A bande anplifikatè. Jwenn nan nan modil la se 34dB ak benefis nan total manm nan PA a se sou 54dB. Travay aktyèl la nan tranzistò la triyod ka ap kalkile yo pa mezire tension sou de bout nan R6 nan rezisteur (2W 1W).
eng
PA unit is composed of first stage PA and final stage PA units. The first stage PA unit consists of a module and a transistor and adopts a class-A broadband amplifier. The gain of the module is 34dB and the total gain of the PA is about 54dB. Working current of the triode transistor can be calculated by measuring voltages on both ends of the resistor R6 (2W 1W).