radio transmitter

简明释义

无线电发报机

英英释义

例句

1.The radio transmitter 无线电发射器 on the mountain top broadcasts weather updates every hour.

山顶的无线电发射器 radio transmitter 每小时广播天气更新。

2.They installed a new radio transmitter 无线电发射器 to improve the local radio station's coverage.

他们安装了一个新的无线电发射器 radio transmitter 来改善当地广播电台的覆盖范围。

3.During the emergency, the team relied on a portable radio transmitter 无线电发射器 to send distress signals.

在紧急情况下，团队依靠一个便携式无线电发射器 radio transmitter 发送求救信号。

4.The radio transmitter 无线电发射器 operates on a frequency of 98.5 MHz.

该无线电发射器 radio transmitter 在98.5 MHz的频率下工作。

5.The new radio transmitter 无线电发射器 allows for clearer communication over long distances.

新的无线电发射器 radio transmitter 可以在长距离内提供更清晰的通讯。

作文

In the world of modern communication, the role of a radio transmitter (无线电发射器) cannot be overstated. These devices are essential for transmitting information over long distances without the need for physical connections. A radio transmitter (无线电发射器) converts electrical energy into radio waves, which can then be received by a radio receiver (无线电接收器) to decode the signals back into usable information. This technology is foundational not only for traditional radio broadcasting but also for various forms of wireless communication, including television, mobile phones, and internet services.The basic principle behind a radio transmitter (无线电发射器) involves the modulation of a carrier wave. This means that the transmitter alters the amplitude, frequency, or phase of the wave to encode the information being sent. For example, in amplitude modulation (AM), the strength of the carrier wave is varied to represent sound waves, while in frequency modulation (FM), the frequency of the wave is changed. Both methods have their advantages and disadvantages, affecting sound quality, range, and susceptibility to interference.One of the most significant advancements in radio transmitter (无线电发射器) technology is the development of digital transmission techniques. Digital signals can carry more information than analog signals, allowing for clearer audio and video quality. Digital radio transmitters (无线电发射器) use techniques like Orthogonal Frequency Division Multiplexing (OFDM) to efficiently utilize the available bandwidth. This has led to the rise of digital radio services, which offer listeners a wider variety of channels and improved sound fidelity.Moreover, the proliferation of radio transmitters (无线电发射器) has significantly transformed the way we consume media. With the advent of internet radio and streaming services, traditional broadcasting is no longer the only method of reaching audiences. Many online platforms now use radio transmitters (无线电发射器) to broadcast content globally, allowing anyone with an internet connection to access a plethora of audio programming.In addition to entertainment, radio transmitters (无线电发射器) play a critical role in emergency communications. During natural disasters or crises, when traditional communication networks may fail, radio transmitters (无线电发射器) can provide a reliable means of disseminating important information to the public. Emergency services often rely on these systems to ensure that vital updates reach affected communities quickly and efficiently.As technology continues to evolve, the future of radio transmitters (无线电发射器) looks promising. Innovations such as software-defined radio (SDR) allow for greater flexibility and adaptability in how signals are transmitted and received. SDR technology enables a single device to function as multiple types of radio transmitters (无线电发射器), making it easier to switch between different frequencies and modes of operation.In conclusion, the radio transmitter (无线电发射器) is a crucial component of our communication infrastructure. Its ability to transmit information wirelessly has revolutionized the way we connect with each other, consume media, and respond to emergencies. As we move forward into an increasingly digital world, the importance of radio transmitters (无线电发射器) will only continue to grow, highlighting the need for ongoing innovation and development in this field.

在现代通信的世界中，无线电发射器的作用不可低估。这些设备对于在没有物理连接的情况下远距离传输信息至关重要。无线电发射器将电能转化为无线电波，这些无线电波可以被无线电接收器接收，以解码信号并转化为可用的信息。这项技术不仅是传统广播的基础，也是各种无线通信形式的基础，包括电视、手机和互联网服务。无线电发射器的基本原理涉及载波波的调制。这意味着发射器改变波的幅度、频率或相位，以编码所发送的信息。例如，在幅度调制（AM）中，载波波的强度变化以表示声波，而在频率调制（FM）中，波的频率发生变化。两种方法各有优缺点，影响音质、范围和对干扰的敏感性。无线电发射器技术的一个重要进展是数字传输技术的发展。数字信号能够携带比模拟信号更多的信息，从而提供更清晰的音频和视频质量。数字无线电发射器使用正交频分复用（OFDM）等技术来有效利用可用带宽。这使得数字广播服务的兴起成为可能，为听众提供了更广泛的频道和更好的音质。此外，无线电发射器的普及显著改变了我们消费媒体的方式。随着互联网广播和流媒体服务的出现，传统广播不再是接触受众的唯一方式。许多在线平台现在使用无线电发射器在全球范围内广播内容，使任何有互联网连接的人都能访问大量的音频节目。除了娱乐之外，无线电发射器在紧急通信中也扮演着关键角色。在自然灾害或危机期间，当传统通信网络可能失效时，无线电发射器可以提供可靠的手段来向公众传播重要信息。紧急服务通常依赖这些系统，以确保重要更新快速高效地到达受影响社区。随着技术的不断发展，无线电发射器的未来看起来充满希望。软件定义无线电（SDR）等创新技术使信号传输和接收的灵活性和适应性更强。SDR技术使单个设备能够作为多种类型的无线电发射器运行，使其更容易在不同频率和操作模式之间切换。总之，无线电发射器是我们通信基础设施的关键组成部分。它无线传输信息的能力彻底改变了我们彼此联系、消费媒体和应对紧急情况的方式。随着我们进入一个日益数字化的世界，无线电发射器的重要性只会继续增长，这突显了这一领域持续创新和发展的必要性。