Fm Radio. Deyang Single Frequency The Synchronous Network Design

FM is a very traditional, widely used analog modulation technology, but when two or more source using the same frequency to broadcast , they can interfere with each other, especially in tow signal level identical, interference will be very obvious, even completely unable to demodulate the normal voice, need to be supplemented with synchronous technology to improve listening effect. In order to adapt to the new business development, and meet the radio coverage growing, Deyang City radio FM107.8, command technology departments implementation Synchronous FM Broadcast Systems.This paper is to address the problem, to FM radio coverage as the main research object, in depth analysis of Deyang and the surrounding area landforms based on location, study transmitting stations, power planning, intensity analysis, synchronization scheme. Main contents:1 . A detailed study of the FM radio transmission and coverage performance.Analysis of synchronization technology key points in theory.2.A detailed study of Landform in Deyang and the surrounding areas is how to affect the signal, Simulation the transmitting station coverage effect of Deyang area, and on this basis, combined with the advertising department of special needs, completed a transmitting station location planning, power planning, and Simulation signal coverage.3.A detailed study of How to improve the listening effect through the synchronous technology.Based on the above study, the technical scheme has been implemented in 2011,and achieved the anticipated target, program department and advertising departments is very satisfied.