maximum usable frequency

简明释义

最大使用频率

英英释义

例句

1.The technician adjusted the equipment to operate within the maximum usable frequency 最大可用频率 range for optimal performance.

技术人员调整设备以在最大可用频率 最大可用频率范围内运行，以获得最佳性能。

2.The radio operator calculated the maximum usable frequency 最大可用频率 for the communication link to ensure clear transmission.

无线电操作员计算了通信链路的最大可用频率 最大可用频率以确保清晰的传输。

3.In HF radio operations, the maximum usable frequency 最大可用频率 varies throughout the day due to solar activity.

在高频无线电操作中，由于太阳活动，最大可用频率 最大可用频率在一天中会有所变化。

4.Understanding the maximum usable frequency 最大可用频率 is crucial for effective long-distance radio communications.

理解最大可用频率 最大可用频率对于有效的远程无线电通信至关重要。

5.For satellite communications, knowing the maximum usable frequency 最大可用频率 helps in selecting the right band.

对于卫星通信，了解最大可用频率 最大可用频率有助于选择正确的频段。

作文

The concept of maximum usable frequency is crucial in the field of radio communications and signal transmission. It refers to the highest frequency at which a radio wave can be transmitted and still successfully reach its intended receiver without significant degradation in quality. Understanding this concept is essential for engineers and technicians who work with radio frequencies, as it directly impacts the effectiveness of communication systems. In radio communication, various factors influence the maximum usable frequency. These include atmospheric conditions, the type of terrain over which the signal travels, and the specific characteristics of the transmitting and receiving equipment. For instance, during the day, the ionosphere reflects certain radio frequencies, allowing for long-distance communication. However, at night, the behavior of the ionosphere changes, which can affect the maximum usable frequency that can be utilized effectively.Moreover, different frequency bands have distinct properties that make them suitable for various applications. For example, lower frequencies tend to travel further and penetrate obstacles better, while higher frequencies offer greater bandwidth and data transmission rates. Therefore, understanding the maximum usable frequency is vital for selecting the appropriate frequency band for a given application.In practical terms, operators often use charts and tables that indicate the maximum usable frequency based on time of day and solar activity. These resources help them determine the best frequency to use for reliable communication. For example, during periods of high solar activity, the ionosphere can reflect higher frequencies, thus increasing the maximum usable frequency available for long-distance communication.In conclusion, the maximum usable frequency is a fundamental concept in radio communications that affects how signals are transmitted and received. By understanding the factors that influence it, professionals in the field can optimize their communication systems and ensure effective transmission of information. As technology continues to evolve, the importance of mastering the maximum usable frequency will only grow, making it essential knowledge for anyone involved in the field of communication technology.

“最大可用频率”这一概念在无线电通信和信号传输领域至关重要。它指的是可以传输的最高频率，在此频率下，无线电波仍然能够成功到达其预定接收器，而不会显著降低质量。理解这一概念对从事无线电频率工作的工程师和技术人员至关重要，因为它直接影响通信系统的有效性。在无线电通信中，影响“最大可用频率”的因素有很多，包括大气条件、信号传播的地形类型以及发射和接收设备的具体特性。例如，在白天，离子层会反射某些无线电频率，从而实现远程通信。然而，到了晚上，离子层的行为会发生变化，这可能会影响可以有效利用的“最大可用频率”。此外，不同的频段具有不同的特性，这使得它们适用于各种应用。例如，较低的频率往往传播得更远，能够更好地穿透障碍物，而较高的频率则提供更大的带宽和数据传输速率。因此，理解“最大可用频率”对于选择合适的频段以满足特定应用至关重要。在实际操作中，操作员通常使用图表和表格，根据一天中的时间和太阳活动来指示“最大可用频率”。这些资源帮助他们确定用于可靠通信的最佳频率。例如，在高太阳活动期间，离子层可以反射更高的频率，从而增加可用于远程通信的“最大可用频率”。总之，“最大可用频率”是无线电通信中的一个基本概念，影响着信号的传输和接收。通过理解影响它的因素，行业专业人士可以优化他们的通信系统，确保信息的有效传输。随着技术的不断发展，掌握“最大可用频率”的重要性只会增加，因此对于任何参与通信技术领域的人来说，这都是必备知识。