terrestrial channel

简明释义

陆上信道

英英释义

例句

1.Many people still prefer watching local news on a terrestrial channel rather than online streaming services.

许多人仍然更喜欢在地面频道上观看地方新闻，而不是在线流媒体服务。

2.The terrestrial channel broadcasts a variety of educational programs for children.

该地面频道播放各种儿童教育节目。

3.The documentary aired on a popular terrestrial channel last night.

这部纪录片昨晚在一个受欢迎的地面频道播出。

4.The television signal was transmitted through a terrestrial channel, ensuring clear reception in urban areas.

电视信号通过地面频道传输，确保在城市地区接收清晰。

5.During the storm, we lost reception on our satellite dish but could still access a terrestrial channel.

在暴风雨期间，我们的卫星天线失去了信号，但仍然可以访问一个地面频道。

作文

In today's world, communication plays a crucial role in our daily lives. The way we transmit information has evolved significantly over the years, leading to various channels of communication. One such channel that has gained prominence is the terrestrial channel, which refers to the means of transmitting signals through the Earth's atmosphere rather than through satellites or underwater cables. This method of communication has its unique advantages and challenges, making it an essential topic of discussion in the field of telecommunications.The terrestrial channel is primarily used in broadcasting television and radio signals. It relies on ground-based transmitters that send signals directly to receivers, such as televisions and radios, within a certain range. This technology allows for real-time transmission and can reach audiences in remote areas where satellite signals may be weak or unavailable. As a result, the terrestrial channel plays a vital role in ensuring that communities have access to important information, news, and entertainment.One of the significant advantages of using the terrestrial channel is its cost-effectiveness. Setting up ground-based transmission towers is generally less expensive than launching satellites into orbit. Moreover, the maintenance costs associated with terrestrial systems are often lower, making it an attractive option for broadcasters, especially in developing regions. This affordability enables local stations to operate and provide valuable content to their audiences without incurring substantial financial burdens.However, the terrestrial channel is not without its limitations. One of the primary challenges is the geographical constraints associated with ground-based transmission. The range of a terrestrial signal is limited, meaning that areas far from the transmitter may experience weak reception or no signal at all. This limitation can create disparities in access to information, particularly in rural or mountainous regions where building additional towers may not be feasible.Furthermore, the terrestrial channel is susceptible to interference from various environmental factors. Buildings, mountains, and even weather conditions can disrupt the quality of the transmitted signal, leading to poor reception for the end-user. This vulnerability to interference highlights the need for ongoing advancements in technology to enhance the reliability of terrestrial communications.Despite these challenges, the terrestrial channel continues to be a vital component of the global communication landscape. As technology advances, efforts are being made to improve the efficiency and reach of terrestrial transmissions. Innovations such as digital broadcasting and high-definition television have transformed the way we experience media through terrestrial channels, providing clearer and more reliable signals.In conclusion, the terrestrial channel represents a fundamental aspect of modern communication, offering both benefits and challenges. Its ability to provide immediate access to information makes it an invaluable resource for communities worldwide. While there are limitations related to range and susceptibility to interference, ongoing technological advancements promise to enhance the effectiveness of terrestrial communications. As we continue to navigate the ever-evolving landscape of communication, understanding the role of the terrestrial channel will be essential for harnessing its full potential in connecting people and sharing information across the globe.

在当今世界，沟通在我们的日常生活中发挥着至关重要的作用。我们传递信息的方式经历了显著的演变，导致了各种沟通渠道的出现。其中一个逐渐受到重视的渠道是地面频道，它指的是通过地球大气而不是通过卫星或水下电缆来传输信号的方法。这种通信方式有其独特的优势和挑战，使其成为电信领域讨论的重要主题。地面频道主要用于广播电视和无线电信号。它依赖于地面发射机，将信号直接发送到接收器，如电视和收音机，覆盖一定范围。这项技术允许实时传输，并可以在偏远地区提供服务，在这些地区，卫星信号可能较弱或不可用。因此，地面频道在确保社区能够获取重要信息、新闻和娱乐方面发挥着至关重要的作用。使用地面频道的一个显著优势是其成本效益。建立基于地面的发射塔通常比将卫星发射到轨道中的费用低。此外，与地面系统相关的维护成本通常较低，这使其成为广播商的一个吸引选项，特别是在发展中地区。这种经济性使地方电台能够运营，并向其观众提供有价值的内容，而不会承担巨大的财务负担。然而，地面频道并非没有局限性。一个主要的挑战是与地面传输相关的地理限制。地面信号的覆盖范围有限，这意味着远离发射器的区域可能会体验到信号微弱或根本没有信号。这种局限性可能导致信息获取的不平衡，特别是在农村或山区，那里建立额外的发射塔可能不可行。此外，地面频道容易受到各种环境因素的干扰。建筑物、山脉甚至天气条件都可能干扰传输信号的质量，导致最终用户的接收效果不佳。这种对干扰的脆弱性强调了技术持续进步的必要性，以提高地面通信的可靠性。尽管面临这些挑战，地面频道仍然是全球通信格局中的一个重要组成部分。随着技术的发展，人们正努力提高地面传输的效率和覆盖范围。数字广播和高清电视等创新改变了我们通过地面频道体验媒体的方式，提供了更清晰和更可靠的信号。总之，地面频道代表了现代通信的一个基本方面，提供了好处和挑战。它能够即时提供信息访问，使其成为全球社区不可或缺的资源。虽然存在与范围和易受干扰相关的限制，但持续的技术进步有望增强地面通信的有效性。在我们继续驾驭不断发展的通信格局时，理解地面频道的角色对于充分利用其在连接人们和共享信息方面的潜力将是至关重要的。