登录
the transmission and reception of audio content through electromagnetic waves, providing a platform for delivering news, music, and other forms of entertainment to listeners
广播
a unit that is used to measure the frequency of a radio wave, or speed of a computer, which is equal to 1 billion Hertz
千兆赫
disturbance caused by signals from a different source which lead to unwanted noise in a radio signal that is being received
干扰
a radio wave with a frequency under 300 kHz and a wavelength of more than 1 kilometer that is used for broadcasting
长波
a radio wave that has a frequency between 300 kHz and 3 MHz and a wavelength between 100 to 1000 meters, which is used for broadcasting
中波
a radio wave that has a frequency between 3 and 30 MHz, and a wavelength between 10 to 100 meters, used for broadcasting
短波
a unit that is used to measure the frequency of a radio wave which is equal to 1 million Hertz
兆赫
a series of electrical or radio waves carrying data to a radio, television station, or mobile phone
信号
a recognizable signal that the radio broadcasts at a precise time to indicate the accurate time of day
时间信号
the activity of transmitting a signal, a message or a program that is being broadcast on radio or television
传输
a range of radio waves with a frequency between 300 MHz and 3000 MHz, especially used in broadcasting television and radio programs that are of high-quality
UHF
a series of radio waves with similar lengths used for specific types of radio broadcasting
波段
the distance between a point on a wave of energy and a similar point on the next wave
波长
the distribution of audio or video content to a wide audience, typically through radio or television, using a network or airwaves
广播
the absence of any sound or broadcast signal on a radio or television channel, resulting in a period of silence or static noise
死空气
a program sent out by a satellite or from the main network to radio and television stations for broadcasting
馈送
the transmission or dissemination of content to a specific and targeted audience or niche market, as opposed to broadcasting to a broad and general audience
窄播
a system by which people working in a radio station can communicate with one another without being heard by the audience
内部通信系统
interfering noises on telecommunication systems, such as radio, caused by electrical disturbances in the air
静电
a right given to people to broadcast their own programs on television or radio channels
公共访问
the licensing or distribution of television or radio programs to multiple broadcasters or stations for airing, allowing content to reach a broader audience beyond its original network or production company
联合播放
a group of TV or radio stations broadcasting the same program at the same time in different places
网络
one of the main methods of radio broadcasting with a high sound quality
频率调制
one of the main methods of radio broadcasting with a lower sound quality than FM
幅度调制
the trend of canceling traditional cable or satellite TV subscriptions in favor of streaming services or other digital media options
割线
