low frequency radio-range

简明释义

低频无线电导航信标

英英释义

例句

1.Scientists rely on low frequency radio-range signals to study the Earth's ionosphere.

科学家依靠低频无线电范围信号研究地球的电离层。

2.The military employs low frequency radio-range for long-distance communication.

军方使用低频无线电范围进行远距离通信。

3.The low frequency radio-range is ideal for reaching remote areas without cellular coverage.

在没有蜂窝覆盖的偏远地区，低频无线电范围是理想的选择。

4.Amateur radio operators often experiment with low frequency radio-range transmissions.

业余无线电操作员经常实验低频无线电范围的传输。

5.The ship used a low frequency radio-range to communicate with the coastal station during the storm.

在风暴期间，这艘船使用了低频无线电范围与沿海站进行通信。

作文

In the realm of modern communication, various technologies play a crucial role in ensuring that information is transmitted efficiently and effectively. Among these technologies, the concept of low frequency radio-range (低频无线电范围) stands out as a vital component, particularly in the fields of broadcasting, navigation, and even scientific research. Understanding the implications and applications of low frequency radio-range can provide insight into its significance in our daily lives and in the broader context of technological advancements.The low frequency radio-range refers to the range of radio frequencies that are lower than those typically used for conventional communication systems. This range generally spans from 30 kHz to 300 kHz. One of the most notable characteristics of low frequency radio-range is its ability to propagate over long distances, making it particularly useful for applications that require reliable communication over vast areas. For instance, maritime navigation systems often rely on low frequency radio-range signals to ensure that ships can communicate with each other and with coastal stations, even when they are miles away from land.Another significant application of low frequency radio-range is in the field of broadcasting. Many AM radio stations operate within this frequency range, providing news, music, and entertainment to audiences across large geographical areas. The ability of low frequency radio-range waves to bend around obstacles and follow the curvature of the Earth allows for better signal reception, especially in rural or remote locations where other forms of communication might be less reliable. This characteristic has made low frequency radio-range essential for ensuring that information reaches even the most isolated communities.Moreover, low frequency radio-range is not limited to commercial broadcasting or navigation; it also plays a crucial role in scientific research. For example, researchers utilize low frequency radio-range waves to study the ionosphere, which is the part of the Earth's atmosphere that is ionized by solar radiation. By analyzing how these low-frequency waves interact with the ionosphere, scientists can gain valuable insights into atmospheric conditions, weather patterns, and even climate change.Despite its advantages, the use of low frequency radio-range is not without challenges. The technology requires larger antennas compared to higher frequency systems, which can be cumbersome and expensive to install and maintain. Additionally, the low frequency range is more susceptible to interference from natural phenomena such as lightning and man-made sources like electrical lines, which can disrupt communication.In conclusion, the concept of low frequency radio-range (低频无线电范围) encompasses a variety of applications that are essential for effective communication, navigation, and scientific exploration. Its ability to transmit signals over long distances makes it invaluable in numerous fields, while its unique properties offer insights into the Earth's atmosphere. As technology continues to evolve, understanding and harnessing the potential of low frequency radio-range will remain a key focus for researchers and professionals alike, ensuring that we can maintain robust communication systems in an ever-changing world.