very-high frequency band

简明释义

甚高频频带

英英释义

例句

1.Ham radio operators frequently utilize the very-high frequency band (甚高频段) for amateur communications.

业余无线电操作员经常利用甚高频段（very-high frequency band）进行业余通信。

2.The very-high frequency band (甚高频段) is crucial for aviation communication.

对于航空通信来说，甚高频段（very-high frequency band）至关重要。

3.The radio station operates on the very-high frequency band (甚高频段), providing clear signals for listeners.

这家电台在甚高频段（very-high frequency band）上广播，为听众提供清晰的信号。

4.Emergency services often use the very-high frequency band (甚高频段) for reliable communication.

紧急服务通常使用甚高频段（very-high frequency band）进行可靠的通信。

5.Many television broadcasts are transmitted over the very-high frequency band (甚高频段).

许多电视广播是通过甚高频段（very-high frequency band）传输的。

作文

The world of communication has evolved dramatically with the advent of technology. One significant aspect of this evolution is the utilization of the very-high frequency band (VHF), which plays a crucial role in various forms of electronic communication. The very-high frequency band refers to the range of radio frequencies from 30 MHz to 300 MHz. This frequency range is essential for many applications, including television broadcasting, two-way radios, and marine communications.Understanding the importance of the very-high frequency band requires a look into its characteristics. VHF waves have longer wavelengths compared to ultra-high frequency (UHF) waves, which makes them suitable for transmitting signals over long distances. This characteristic is particularly beneficial for FM radio stations and television channels that aim to reach a broad audience. Additionally, the very-high frequency band is less susceptible to interference from buildings and other obstacles, allowing for clearer reception in urban areas.In practical terms, the very-high frequency band is utilized in various sectors. For instance, in aviation, VHF radios are standard equipment in aircraft, enabling pilots to communicate with air traffic control and other aircraft. This communication is vital for ensuring safety and coordination in busy airspace. Similarly, in maritime navigation, ships use VHF radios to stay in contact with coastal stations and other vessels, enhancing safety at sea.Moreover, the very-high frequency band is also employed in amateur radio, where hobbyists utilize these frequencies to connect with others around the globe. This aspect of VHF communication fosters a sense of community among enthusiasts who share a passion for radio technology and communication.The significance of the very-high frequency band extends beyond just communication; it also plays a role in scientific research. For example, meteorologists use VHF radar to study weather patterns and track storms. This data is crucial for issuing warnings and preparing communities for severe weather events. Similarly, environmental scientists may use VHF frequencies to study wildlife and their habitats, contributing to conservation efforts.As technology continues to advance, the applications of the very-high frequency band are likely to expand further. Innovations such as digital broadcasting and new communication protocols are paving the way for more efficient use of VHF frequencies. However, it is essential to manage this spectrum carefully to avoid congestion and interference, which could undermine the reliability of communication systems that rely on VHF.In conclusion, the very-high frequency band is a vital component of modern communication systems. Its unique properties enable effective transmission of signals across various platforms, from radio and television to aviation and maritime operations. As we move forward, understanding and optimizing the use of the very-high frequency band will be crucial in maintaining the integrity and efficiency of our communication networks. The future of communication relies on our ability to harness the potential of VHF frequencies while addressing the challenges that come with increased usage.

通信的世界随着技术的进步而发生了巨大的变化。这个演变中一个重要的方面是利用超高频段（VHF），它在各种电子通信形式中发挥着至关重要的作用。超高频段指的是从30 MHz到300 MHz的无线电频率范围。这个频率范围对于许多应用至关重要，包括电视广播、对讲机和海洋通信。理解超高频段的重要性需要了解其特性。与超高频（UHF）波相比，VHF波具有更长的波长，这使得它们适合于远距离传输信号。这一特性对于希望覆盖广泛受众的FM广播电台和电视频道尤为有益。此外，超高频段对建筑物和其他障碍物的干扰具有更强的抵抗力，从而在城市地区实现更清晰的接收。在实际应用中，超高频段被用于各个领域。例如，在航空领域，VHF无线电是飞机上的标准设备，使飞行员能够与空中交通管制和其他飞机进行通信。这种通信对于确保繁忙空域中的安全和协调至关重要。同样，在海洋导航中，船只使用VHF无线电与沿海站和其他船只保持联系，从而增强海上安全。此外，超高频段还被业余无线电爱好者使用，爱好者利用这些频率与全球其他人建立联系。VHF通信的这一方面促进了热衷于无线电技术和通信的爱好者之间的社区感。超高频段的重要性不仅限于通信；它在科学研究中也发挥着作用。例如，气象学家使用VHF雷达研究天气模式并追踪风暴。这些数据对于发出警报和准备社区应对严重天气事件至关重要。同样，环境科学家可能使用VHF频率研究野生动物及其栖息地，为保护工作做出贡献。随着技术的不断进步，超高频段的应用可能会进一步扩展。数字广播和新通信协议等创新正在为更有效地利用VHF频率铺平道路。然而，必须谨慎管理这一频谱，以避免拥挤和干扰，这可能会破坏依赖VHF的通信系统的可靠性。总之，超高频段是现代通信系统的重要组成部分。其独特的特性使得在各种平台上有效传输信号，从广播和电视到航空和海洋操作。随着我们向前发展，理解和优化超高频段的使用将对维护我们通信网络的完整性和效率至关重要。通信的未来依赖于我们利用VHF频率潜力的能力，同时应对随之而来的使用增加的挑战。