ground wave operating distance

简明释义

地波作用距离

英英释义

例句

1.The radio station reported its ground wave operating distance as being approximately 50 miles, which means their signal can reach that far on the ground.

该电台报告其地波工作距离约为50英里，这意味着他们的信号可以在地面上传播这么远。

2.The ground wave operating distance for low-frequency radio waves is generally greater than that of high-frequency waves.

低频无线电波的地波工作距离通常大于高频波。

3.Understanding the ground wave operating distance is crucial for optimizing the layout of communication towers.

了解地波工作距离对于优化通信塔的布局至关重要。

4.Engineers calculated the ground wave operating distance to determine the best locations for new antennas.

工程师计算了地波工作距离以确定新天线的最佳位置。

5.During our testing, we measured the ground wave operating distance of the transmitter to ensure it meets regulatory standards.

在我们的测试中，我们测量了发射机的地波工作距离以确保它符合监管标准。

作文

Understanding the concept of ground wave operating distance is essential in the field of radio communication. This term refers to the maximum distance over which a ground wave can effectively propagate and transmit signals. Ground waves are electromagnetic waves that travel along the surface of the Earth, making them particularly useful for medium and low-frequency radio transmissions. Unlike sky waves, which reflect off the ionosphere and can travel much longer distances, ground waves are limited by the curvature of the Earth and other environmental factors. The ground wave operating distance is influenced by several factors, including frequency, terrain, and atmospheric conditions. Generally, lower frequencies can travel farther as ground waves, while higher frequencies tend to dissipate more quickly. This is why AM radio stations, which operate at lower frequencies, can be received over much greater distances compared to FM stations. In practical terms, understanding the ground wave operating distance helps engineers design better transmission systems. For instance, if a radio station wants to cover a large area, it must consider the appropriate frequency to use and the power of its transmitter. By calculating the ground wave operating distance, engineers can determine how far their signals will reach and whether they need to establish additional relay stations to ensure complete coverage. Moreover, the terrain plays a significant role in the propagation of ground waves. Areas with hills, mountains, or dense buildings can obstruct the signal, reducing the effective ground wave operating distance. In contrast, flat open areas allow for better signal propagation. This is why many radio towers are built in elevated locations or rural settings where there are fewer obstructions. Weather conditions also affect the ground wave operating distance. For example, heavy rain or snow can absorb some of the energy from the ground wave, leading to a shorter effective range. On the other hand, clear and dry conditions can enhance the signal's reach. Thus, radio operators must monitor weather patterns to anticipate changes in signal quality and range. In conclusion, the concept of ground wave operating distance is crucial for anyone involved in radio communications. It encompasses various factors such as frequency, terrain, and weather, all of which influence how far a signal can travel. By mastering this concept, engineers and radio operators can optimize their systems for better performance and ensure that their broadcasts reach the intended audience effectively. Understanding the intricacies of ground wave operating distance not only improves communication but also enhances the overall efficiency of radio transmission systems, ensuring that information is shared reliably across distances.

理解“地面波工作距离”的概念在无线电通信领域至关重要。该术语指的是地面波有效传播和传输信号的最大距离。地面波是沿着地球表面传播的电磁波，因此特别适用于中低频无线电传输。与反射到电离层并能传播更长距离的天波不同，地面波受到地球曲率和其他环境因素的限制。“地面波工作距离”受多个因素的影响，包括频率、地形和气象条件。通常，较低的频率作为地面波可以传播得更远，而较高的频率则倾向于更快衰减。这就是为什么AM广播电台（操作在较低频率下）可以在比FM电台更大距离内接收的原因。在实际应用中，理解“地面波工作距离”帮助工程师设计更好的传输系统。例如，如果一个广播电台希望覆盖一个大区域，它必须考虑使用适当的频率和发射机的功率。通过计算“地面波工作距离”，工程师可以确定他们的信号将传播多远，以及是否需要建立额外的中继站以确保完整覆盖。此外，地形在地面波传播中也起着重要作用。山丘、山脉或密集建筑物的区域可能会阻碍信号，从而减少有效的“地面波工作距离”。相反，平坦的开放区域允许更好的信号传播。这就是为什么许多广播塔建在高地或农村地区，那里障碍物较少。天气条件也会影响“地面波工作距离”。例如，强降雨或降雪可能会吸收一些地面波的能量，导致有效范围缩短。另一方面，晴朗干燥的条件可以增强信号的传播。因此，无线电操作员必须监测天气模式，以预测信号质量和范围的变化。总之，“地面波工作距离”的概念对于任何参与无线电通信的人来说都是至关重要的。它包含了频率、地形和天气等各种因素，所有这些因素都会影响信号的传播距离。通过掌握这一概念，工程师和无线电操作员可以优化他们的系统，以提高性能，并确保他们的广播有效地覆盖目标受众。理解“地面波工作距离”的复杂性不仅改善了通信，还增强了无线电传输系统的整体效率，确保信息可靠地在距离之间共享。