F. amplifier, detector and audio output circuits allow two simultaneous communications channels (USB and LSB) to be employed on one frequency assignment, doubling the information receiving capacity.

• F.；喇叭筒、发现者和声音输出线路允许二个同时的沟通途径(万用串列总线和LSB)在一频率任务上被雇用；加倍受到能力的数据。