The new modulator adopts the balance AM technique of FET double defference, and has a automatic level control circuit, a automatic level protective circuit and voltage controlled phase-locking oscillation circuit.

• 该调制器应用FET双差分平衡调幅技术,并具有自动电平控制电路、自动电平保护电路和压控锁相振荡电路,是一种新型的调制器。