maximum usable frequency

简明释义

最高可用频率

英英释义

例句

1.Understanding the maximum usable frequency 最大可用频率 is crucial for effective long-distance communication.

理解最大可用频率 最大可用频率对于有效的远程通信至关重要。

2.The technician explained that the maximum usable frequency 最大可用频率 depends on atmospheric conditions.

技术人员解释说，最大可用频率 最大可用频率取决于大气条件。

3.During the storm, we had to switch to a lower maximum usable frequency 最大可用频率 to maintain contact.

在暴风雨期间，我们不得不切换到较低的最大可用频率 最大可用频率以保持联系。

4.The radio operator adjusted the settings to ensure they were within the maximum usable frequency 最大可用频率 for optimal signal clarity.

无线电操作员调整设置，以确保他们处于最佳信号清晰度的最大可用频率 最大可用频率之内。

5.We need to calculate the maximum usable frequency 最大可用频率 to ensure our equipment operates efficiently.

我们需要计算最大可用频率 最大可用频率以确保我们的设备高效运行。

作文

In the realm of radio communication, understanding the concept of maximum usable frequency is crucial for optimizing signal transmission and reception. The maximum usable frequency (often abbreviated as MUF) refers to the highest frequency at which a radio wave can be transmitted or received via the ionosphere under specific conditions. It plays a significant role in long-distance communication, particularly in high-frequency (HF) bands that rely on skywave propagation. As we delve deeper into this topic, it becomes apparent that the maximum usable frequency is not a static value; rather, it fluctuates based on various factors including time of day, solar activity, and the angle of incidence of the radio waves.During the daytime, for instance, the ionosphere is more ionized due to solar radiation, which generally increases the maximum usable frequency. In contrast, at night, the ionization levels decrease, leading to a lower maximum usable frequency. This phenomenon is crucial for radio operators who must adapt their frequencies according to the time of day to maintain effective communication. Moreover, solar activity, such as sunspots and solar flares, can significantly impact the ionosphere's characteristics, thereby affecting the maximum usable frequency. When solar activity is high, the ionosphere may become more reflective at higher frequencies, allowing for better communication over long distances.Understanding the maximum usable frequency is not only important for amateur radio enthusiasts but also for military and commercial communication systems. For example, during military operations, reliable communication is paramount. Knowing the maximum usable frequency allows military personnel to select appropriate frequencies that ensure secure and effective communication, especially in challenging environments where traditional communication methods may fail.Furthermore, advancements in technology have led to the development of tools and software that can predict the maximum usable frequency based on real-time data. These tools analyze current ionospheric conditions, solar activity, and other variables to provide users with the most accurate information. This capability enhances the ability of radio operators to make informed decisions regarding frequency selection, ultimately improving the quality of communication.In conclusion, the concept of maximum usable frequency is fundamental to the field of radio communication. It is influenced by a multitude of factors, including time of day and solar activity, and requires radio operators to stay informed about changing conditions. As technology continues to evolve, the tools available for predicting the maximum usable frequency will only become more sophisticated, further enhancing our ability to communicate effectively across vast distances. Understanding and mastering the implications of maximum usable frequency will undoubtedly remain a vital skill for anyone involved in the world of radio communication.

在无线电通信领域，理解“最大可用频率”的概念对于优化信号传输和接收至关重要。“最大可用频率”（通常缩写为MUF）指的是在特定条件下，通过电离层可以传输或接收的最高频率。它在远程通信中扮演着重要角色，特别是在依赖天波传播的高频（HF）频段。当我们深入探讨这个主题时，显然“最大可用频率”并不是一个静态值；而是根据多种因素，如白天时间、太阳活动和无线电波的入射角度而波动。例如，在白天，由于太阳辐射的影响，电离层的电离程度更高，这通常会导致“最大可用频率”增加。相比之下，在夜间，电离程度降低，导致“最大可用频率”下降。这一现象对于无线电操作员来说至关重要，他们必须根据一天中的时间调整频率，以维持有效的通信。此外，太阳活动，如太阳黑子和太阳耀斑，可能会显著影响电离层的特性，从而影响“最大可用频率”。当太阳活动较高时，电离层可能在较高频率上变得更具反射性，从而允许更好的远距离通信。理解“最大可用频率”不仅对业余无线电爱好者重要，对军事和商业通信系统也同样重要。例如，在军事行动中，可靠的通信至关重要。了解“最大可用频率”使军事人员能够选择适当的频率，以确保安全和有效的通信，尤其是在传统通信方法可能失效的挑战性环境中。此外，技术的进步使得开发出能够根据实时数据预测“最大可用频率”的工具和软件成为可能。这些工具分析当前的电离层条件、太阳活动和其他变量，为用户提供最准确的信息。这种能力增强了无线电操作员对频率选择做出明智决策的能力，最终提高了通信质量。总之，“最大可用频率”的概念是无线电通信领域的基础。它受多种因素的影响，包括白天时间和太阳活动，要求无线电操作员随时了解变化的条件。随着技术的不断发展，可用于预测“最大可用频率”的工具将变得更加复杂，从而进一步增强我们在广阔距离上有效沟通的能力。理解和掌握“最大可用频率”的含义无疑将继续成为任何参与无线电通信世界的人的重要技能。