radio range

简明释义

无线电导向标

英英释义

例句

1.To ensure safety, the rescue team stayed within a radio range of the main station.

为了确保安全，救援队保持在主站的无线电范围内。

2.During the hike, we lost our radio range and could not communicate with the base camp.

在徒步旅行中，我们失去了无线电范围，无法与基地营进行通信。

3.The radio range of the new walkie-talkies is much greater than the previous model.

新款对讲机的无线电范围比之前的型号大得多。

4.The pilot confirmed that the aircraft was within the radio range of the control tower.

飞行员确认飞机在控制塔的无线电范围内。

5.The radio range of this marine radio is crucial for long-distance communication at sea.

这款海洋无线电的无线电范围对于海上的远程通信至关重要。

作文

In today's world, the advancement of technology has transformed various aspects of our lives, including communication. One significant term that arises in the context of wireless communication is radio range, which refers to the distance over which radio signals can effectively transmit information. Understanding radio range is essential for anyone interested in the fields of telecommunications, broadcasting, and even amateur radio operation.The concept of radio range is closely tied to the principles of radio wave propagation. Radio waves are electromagnetic waves that travel through the air at the speed of light. However, several factors influence how far these waves can travel before they weaken or become unusable. These factors include frequency, power output, antenna design, and environmental conditions such as terrain and weather.For instance, lower frequency waves tend to have a longer radio range compared to higher frequency waves. This is because lower frequencies can diffract around obstacles and follow the curvature of the Earth, allowing them to reach distant locations. Conversely, higher frequency waves are more likely to be absorbed by obstacles and thus have a shorter effective range.Another critical aspect of radio range is the power output of the transmitter. A higher power output can increase the distance that a signal can travel. However, regulations often limit the maximum power output to avoid interference with other communication systems. Therefore, finding the right balance between power and radio range is vital for efficient communication.Antenna design also plays a crucial role in determining radio range. Different types of antennas can focus the radio waves in specific directions or provide a broader coverage area. For example, directional antennas can significantly extend the radio range by concentrating the signal in a particular direction, while omnidirectional antennas provide a more uniform coverage but may not reach as far.Environmental conditions can further complicate the understanding of radio range. Urban areas with tall buildings can create shadowing effects, where signals are blocked or reflected, leading to dead zones where communication is poor or nonexistent. On the other hand, open areas with minimal obstacles typically allow for a more extended radio range.In conclusion, the term radio range encapsulates a complex interplay of various factors that determine how far radio signals can travel. From frequency and power output to antenna design and environmental influences, each element contributes to the overall effectiveness of wireless communication systems. As technology continues to evolve, understanding radio range will remain crucial for developing innovative communication solutions that can meet the growing demands of our interconnected world.Understanding radio range (无线电范围) is essential for anyone interested in the fields of telecommunications, broadcasting, and even amateur radio operation. The concept of radio range (无线电范围) is closely tied to the principles of radio wave propagation. Radio waves are electromagnetic waves that travel through the air at the speed of light. However, several factors influence how far these waves can travel before they weaken or become unusable. These factors include frequency, power output, antenna design, and environmental conditions such as terrain and weather.

在今天的世界里，技术的进步改变了我们生活的各个方面，包括通信。在无线通信的背景下，一个重要的术语是无线电范围，它指的是无线电信号有效传输信息的距离。理解无线电范围对于任何对电信、广播甚至业余无线电操作感兴趣的人来说都是至关重要的。无线电范围的概念与无线电波传播的原理密切相关。无线电波是以光速在空气中传播的电磁波。然而，有几个因素影响这些波能够传播多远，直到它们减弱或变得不可用。这些因素包括频率、功率输出、天线设计以及环境条件，如地形和天气。例如，较低频率的波通常具有比高频率波更长的无线电范围。这是因为低频率可以绕过障碍物并遵循地球的曲率，从而使它们能够到达遥远的地方。相反，高频率的波更容易被障碍物吸收，因此有效范围较短。无线电范围的另一个关键方面是发射器的功率输出。更高的功率输出可以增加信号传播的距离。然而，法规通常会限制最大功率输出，以避免与其他通信系统的干扰。因此，在功率和无线电范围之间找到正确的平衡对于高效通信至关重要。天线设计也在决定无线电范围方面起着至关重要的作用。不同类型的天线可以将无线电波集中在特定方向上或提供更广泛的覆盖区域。例如，定向天线可以通过将信号集中在特定方向上显著延长无线电范围，而全向天线则提供更均匀的覆盖，但可能无法达到那么远。环境条件进一步复杂了对无线电范围的理解。城市地区的高楼大厦可能会产生阴影效应，信号被阻挡或反射，导致通信不良或不存在的死区。另一方面，开阔的区域障碍物较少，通常允许更长的无线电范围。总之，术语无线电范围概括了决定无线电信号传播距离的各种因素之间复杂的相互作用。从频率和功率输出到天线设计和环境影响，每个元素都对无线通信系统的整体有效性做出了贡献。随着技术的不断发展，理解无线电范围将继续对开发能够满足我们日益互联世界需求的创新通信解决方案至关重要。