调频广播具有抗干扰能力强,信号保真度高,接收简单经济等特点,己成为主要广播方式。目前我国的调频广播发射台大多采用大功率单一发射机发射。在城市,由于高楼林立,多径反射越来越严重,致使接收效果不理想,覆盖面积减小;在山区,由于山体 FM radio with anti-interference ability, high signal fidelity, receiving simple economy and other characteristics, has become the main broadcast mode. At present, most FM transmitters in China use high-power single transmitters. In cities, due to the rise of high-rise buildings, multipath reflections are more and more serious, resulting in poor reception and reduced coverage area. In mountainous areas,