What are the traditional broadcasting systems? What are the elements of radio programs?

Broadcasting usually refers to a multifunctional modern information dissemination tool that transmits sound information through radio waves or wires. Traditionally, it is understood as: one is wireless broadcasting that transmits programs through radio waves, and the other is wired broadcasting that transmits programs through wires. At present, there are more than 1 000 radio stations in China, mainly using FM broadcasting technology, and a small number of medium-wave broadcasting and short-wave broadcasting.

The characteristics of broadcasting determine the status of comments.

Comment is one of the most important features of broadcasting; The characteristics of broadcasting determine the status of comments.

First, the original ecology of broadcasting determines the position of broadcasting comments in broadcasting, which is incomparable to other media. The original ecology of broadcasting is actually interpersonal communication, which is rapidly amplified by modern means. Interpersonal communication mainly talks about emotion and information, which is the most important communication element in radio programs, that is, the characteristics of radio. In this communication process, the image and personality of the characters are the most important, and the viewpoint is the primary factor to form the image and personality of the characters, especially the media characters.

Second, the development of the city has led to the rapid development of various communities in the city, and the vertical movement speed of people is more intense than before. Different communities have different views on the same event, so some people say that now is the era of "opinion news". Although this formulation is biased, opinions are becoming one of the most important topics in our news. Broadcasting is characterized by the integration of time and space, which allows different viewpoints of different communities to meet, communicate, blend and confront in the same time and space, so as to understand each other and achieve a rational harmony.

Third, because broadcasting has the original ecological characteristics of interpersonal communication, it requires high communication methods. The audience structure we are facing now is complex, because of the differences in culture, economy, social status and even experience, the requirements for communication forms are very high. The principle that the mode of reception determines the mode of transmission is becoming more and more obvious now. In recent years, radio has made many attempts to divide audiences by frequency, time period, program and column, and determine different audiences in different program columns. The concentration of audience segmentation is constantly strengthening. Then the host of a certain column will have his own target audience when doing the program, and the audience will have their favorite host when choosing the program. Therefore, the broadcast host is consistent with the audience in the way of communication, which enhances the effect of communication.