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SHD-A型多通道固态调频发射机系统主要应用于航空通信系统一点对多点的声音、振动、测控等基带信号的发射与传输.此发射机采用了馈相频率合成器、单机多通道(1—4频道)发射和固态功效电路等技术,与目前国内的晶振固定发射频率调频发射机相比具有发射频率可随意调整、频稳度高、省去了多级倍频器和高价滤波器,使电路简单可靠、调试方便、性能价格比高.是国内首先将此技术应用于小型固态调频发射机机型,此系统已通过航空工业总公司科技成果鉴定并投入使用.
The SHD-A multi-channel solid-state frequency modulation transmitter system is mainly used for transmitting and transmitting base-band signals of sound, vibration, measurement and control, etc. from one point to many points in an aviation communication system. The transmitter adopts a frequency synthesizer, 1-4 channel) emission and solid-state power circuits and other technologies, compared with the current domestic fixed-frequency transmitters FM transmit frequency can be adjusted, high frequency stability, eliminating the need for multi-stage frequency multiplier and high-cost filters , Make the circuit simple and reliable, easy to debug, high cost performance, is the first application of this technology to small solid-state FM transmitter models, this system has passed the Aviation Industry Corporation of scientific and technological achievements identified and put into use.