amplitude modulated vhf transmitter

简明释义

爹甚高频发射机

英英释义

例句

1.You can improve the range of your communication by upgrading to a more powerful amplitude modulated vhf transmitter.

通过升级到更强大的幅度调制VHF发射器，您可以提高通信范围。

2.Many marine communication systems rely on amplitude modulated vhf transmitters for clear voice transmission.

许多海洋通信系统依赖于幅度调制VHF发射器进行清晰的语音传输。

3.The radio station uses an amplitude modulated vhf transmitter to broadcast its signals over a wide area.

这个广播电台使用一个幅度调制VHF发射器在广泛区域内广播信号。

4.The amplitude modulated vhf transmitter is essential for emergency broadcasts in coastal areas.

在沿海地区，幅度调制VHF发射器对于紧急广播至关重要。

5.When tuning into the local frequency, make sure your receiver is compatible with the amplitude modulated vhf transmitter.

在调谐当地频率时，请确保您的接收器与幅度调制VHF发射器兼容。

作文

In the world of communication technology, various methods and devices are utilized to transmit signals over different frequencies. One significant type of transmitter is the amplitude modulated vhf transmitter, which plays a crucial role in broadcasting and telecommunications. Understanding how this device works and its importance can provide insights into modern communication systems.The term "amplitude modulated vhf transmitter" refers to a specific type of transmitter that employs amplitude modulation (AM) to encode information onto a very high frequency (VHF) signal. Amplitude modulation is a technique where the amplitude of the carrier wave is varied in proportion to the waveform being sent. This allows for the transmission of audio signals, such as music or speech, over long distances. VHF, on the other hand, covers frequencies from 30 MHz to 300 MHz, making it suitable for television and radio broadcasting.One of the primary advantages of using an amplitude modulated vhf transmitter is its ability to provide a clear and stable signal over vast areas. Unlike lower frequency bands, VHF signals can travel further and penetrate through obstacles like buildings and trees more effectively. This characteristic is particularly beneficial for radio stations that aim to reach a broad audience.The amplitude modulated vhf transmitter operates by taking an audio signal, such as a voice or music, and modulating it onto a VHF carrier wave. This process involves varying the amplitude of the carrier wave according to the audio signal's amplitude. For instance, when a person speaks into a microphone, their voice creates sound waves that vary in amplitude. The transmitter captures these variations and adjusts the amplitude of the carrier wave accordingly, creating a modulated signal that can be transmitted over the air.Once the signal is transmitted, it travels through the air until it reaches a receiver, such as a radio. The receiver demodulates the signal, extracting the original audio information from the carrier wave. This process allows listeners to hear the broadcasted content clearly. The efficiency and effectiveness of this method have made the amplitude modulated vhf transmitter a popular choice for many radio stations.However, there are some limitations to consider. While VHF signals can cover large distances, they may be susceptible to interference from other electronic devices and environmental factors. Additionally, AM broadcasts can sometimes suffer from static and noise, which can affect sound quality. Despite these challenges, the amplitude modulated vhf transmitter remains a reliable option for many broadcasters.In conclusion, the amplitude modulated vhf transmitter is an essential component of modern communication systems. Its ability to transmit audio signals over long distances with relative clarity makes it a valuable tool for radio and television broadcasting. As technology continues to evolve, understanding devices like the amplitude modulated vhf transmitter helps us appreciate the complexities of communication and the innovations that make it possible.

在通信技术的世界中，各种方法和设备被用来在不同的频率上发送信号。一个重要的发射器类型是调幅 VHF 发射器，它在广播和电信中发挥着关键作用。理解这个设备的工作原理及其重要性，可以为我们提供现代通信系统的见解。“调幅 VHF 发射器”一词指的是一种特定类型的发射器，它采用调幅（AM）技术将信息编码到非常高频（VHF）信号上。调幅是一种技术，其中载波波的幅度根据要发送的波形变化。这使得音频信号（例如音乐或语音）能够在长距离上传输。另一方面，VHF覆盖从 30 MHz 到 300 MHz 的频率，使其适合电视和广播。使用调幅 VHF 发射器的主要优点之一是其能够在广阔区域内提供清晰且稳定的信号。与低频带相比，VHF 信号可以更远地传播，并更有效地穿透建筑物和树木等障碍物。这一特性对于希望接触广泛受众的广播电台尤其有利。调幅 VHF 发射器通过将音频信号（例如声音或音乐）调制到 VHF 载波波上而工作。这个过程涉及根据音频信号的幅度变化载波波的幅度。例如，当一个人对着麦克风说话时，他们的声音会产生幅度变化的声波。发射器捕捉到这些变化，并相应地调整载波波的幅度，创建一个可以通过空气传输的调制信号。一旦信号被发送，它就会通过空气传播，直到到达接收器，例如收音机。接收器解调信号，从载波波中提取原始音频信息。这个过程使听众能够清晰地听到广播内容。这种方法的效率和有效性使得调幅 VHF 发射器成为许多广播电台的热门选择。然而，也有一些限制需要考虑。虽然 VHF 信号可以覆盖大面积，但它们可能会受到其他电子设备和环境因素的干扰。此外，AM 广播有时可能会受到静电和噪声的影响，从而影响音质。尽管面临这些挑战，调幅 VHF 发射器仍然是许多广播者可靠的选择。总之，调幅 VHF 发射器是现代通信系统的重要组成部分。它在长距离内以相对清晰的方式传输音频信号的能力，使其成为广播和电视广播的宝贵工具。随着技术的不断发展，理解像调幅 VHF 发射器这样的设备帮助我们欣赏通信的复杂性以及使其成为可能的创新。