ultra high frequency

简明释义

特高频

英英释义

例句

1.Many modern walkie-talkies operate on ultra high frequency 超高频 channels to ensure better communication.

许多现代对讲机在超高频 ultra high frequency 通道上工作，以确保更好的通信。

2.The ultra high frequency 超高频 radar system is used for tracking aircraft in real-time.

该超高频 ultra high frequency 雷达系统用于实时跟踪飞机。

3.The radio station broadcasts on an ultra high frequency 超高频 band, allowing for clearer sound quality.

这家电台在一个超高频 ultra high frequency 波段上广播，提供更清晰的音质。

4.Television signals are often transmitted over ultra high frequency 超高频 waves to provide high-definition content.

电视信号通常通过超高频 ultra high frequency 波段传输，以提供高清内容。

5.In the field of telecommunications, ultra high frequency 超高频 is essential for mobile phone networks.

在电信领域，超高频 ultra high frequency 对于手机网络至关重要。

作文

In the world of telecommunications and broadcasting, the term ultra high frequency refers to a specific range of radio frequencies. This range typically spans from 300 megahertz (MHz) to 3 gigahertz (GHz). The significance of ultra high frequency lies in its ability to carry more information than lower frequency bands, making it ideal for various applications such as television broadcasting, mobile communications, and satellite transmissions. The advantages of ultra high frequency are numerous. For instance, UHF signals can penetrate through buildings and other obstacles better than higher frequency signals, which makes them particularly useful in urban environments where tall structures can obstruct signal paths. Additionally, the shorter wavelengths associated with ultra high frequency allow for smaller antennas, leading to more compact and portable devices. This feature is especially beneficial for handheld devices like smartphones, which rely on these frequencies for effective communication.Moreover, the ultra high frequency spectrum is increasingly being utilized for digital television broadcasting. The transition from analog to digital has allowed broadcasters to make more efficient use of the available bandwidth. With digital signals, multiple channels can be transmitted within the same ultra high frequency band, providing viewers with a wider array of programming options without requiring additional frequencies.In addition to its applications in broadcasting, ultra high frequency plays a crucial role in public safety communications. Emergency services, such as police, fire departments, and medical responders, often operate within this frequency range to ensure reliable communication during critical situations. The ability to maintain clear and stable communication is essential for coordinating responses and ensuring public safety.However, the use of ultra high frequency is not without challenges. One significant issue is the potential for interference between different users of the spectrum. As more devices and services compete for access to ultra high frequency bands, managing this interference becomes increasingly important. Regulatory bodies, such as the Federal Communications Commission (FCC) in the United States, work to allocate frequencies and minimize interference to ensure that all users can operate effectively.Furthermore, the growing demand for wireless services has led to an increasing interest in the ultra high frequency spectrum for new technologies, such as 5G networks. These next-generation mobile networks promise faster data speeds and lower latency, which are critical for supporting advanced applications like autonomous vehicles, smart cities, and the Internet of Things (IoT). To accommodate this demand, existing ultra high frequency allocations may need to be reassessed and reallocated to ensure that they meet the needs of modern communication technologies.In conclusion, understanding the concept of ultra high frequency is essential in today's technology-driven society. Its applications span across various fields, including telecommunications, broadcasting, and public safety. As technology continues to evolve, the importance of ultra high frequency will only grow, highlighting the need for effective management and regulation of this valuable spectrum. By appreciating the role of ultra high frequency in our daily lives, we can better understand the complexities of modern communication systems and the challenges they face in an ever-changing landscape.

在电信和广播的世界中，术语超高频指的是一个特定的无线电频率范围。这个范围通常从300兆赫（MHz）到3千兆赫（GHz）。超高频的重要性在于其能够传输比低频带更多的信息，这使得它非常适合用于电视广播、移动通信和卫星传输等各种应用。超高频的优势有很多。例如，UHF信号可以比更高频率的信号更好地穿透建筑物和其他障碍物，这使得它们在城市环境中特别有用，因为高大的建筑物可能会阻挡信号路径。此外，与超高频相关的较短波长允许使用更小的天线，从而导致设备更加紧凑和便携。这一特点对于依赖这些频率进行有效通信的手持设备如智能手机尤其重要。此外，超高频频谱越来越多地用于数字电视广播。从模拟转向数字的过程使得广播公司能够更有效地利用可用带宽。通过数字信号，可以在同一超高频频段内传输多个频道，为观众提供更广泛的节目选择，而无需额外的频率。除了在广播中的应用，超高频在公共安全通信中也发挥着至关重要的作用。警察、消防部门和医疗救援等应急服务通常在这一频率范围内运行，以确保在关键情况下可靠的通信。保持清晰和稳定的通信对于协调响应和确保公共安全至关重要。然而，超高频的使用并非没有挑战。一个重要的问题是不同用户之间的干扰潜力。随着越来越多的设备和服务竞争访问超高频频段，管理这种干扰变得越来越重要。像美国联邦通信委员会（FCC）这样的监管机构致力于分配频率并减少干扰，以确保所有用户都能有效运营。此外，对无线服务日益增长的需求引发了对超高频频谱的新技术的兴趣，例如5G网络。这些下一代移动网络承诺提供更快的数据速度和更低的延迟，这对于支持先进应用如自动驾驶汽车、智能城市和物联网（IoT）至关重要。为了满足这种需求，现有的超高频分配可能需要重新评估和重新分配，以确保满足现代通信技术的需求。总之，理解超高频的概念在当今技术驱动的社会中至关重要。它的应用跨越多个领域，包括电信、广播和公共安全。随着技术的不断发展，超高频的重要性只会增加，突显出对这一宝贵频谱的有效管理和监管的必要性。通过认识到超高频在我们日常生活中的作用，我们可以更好地理解现代通信系统的复杂性及其在不断变化的环境中面临的挑战。