short wave transmitter

简明释义

短波发射机

英英释义

例句

1.Hams often use a short wave transmitter to connect with other enthusiasts around the world.

业余无线电爱好者常常使用短波发射器与世界各地的其他爱好者联系。

2.The short wave transmitter allows us to communicate over long distances without relying on satellites.

这个短波发射器使我们能够在不依赖卫星的情况下进行远距离通信。

3.The radio station operates a powerful short wave transmitter to reach international audiences.

这家广播电台运营着一个强大的短波发射器，以覆盖国际听众。

4.You need a license to operate a short wave transmitter legally.

合法操作短波发射器需要许可证。

5.During the emergency, the short wave transmitter was crucial for sending out distress signals.

在紧急情况下，短波发射器对发送求救信号至关重要。

作文

In the realm of communication technology, the term short wave transmitter refers to a device that emits radio waves in the shortwave frequency range, typically from 3 to 30 MHz. These transmitters play a crucial role in long-distance communication, allowing signals to travel thousands of miles by bouncing off the ionosphere. The importance of short wave transmitter cannot be overstated, as they have been instrumental in various applications, including broadcasting, amateur radio, and emergency communications.Historically, short wave transmitters emerged in the early 20th century when radio technology was still in its infancy. They quickly gained popularity due to their ability to transmit over vast distances without the need for extensive infrastructure. For instance, during World War II, short wave transmitters were used to communicate between military units spread across different continents, proving their reliability and effectiveness.One of the most significant advantages of using a short wave transmitter is its capability to reach remote areas where other forms of communication may not be feasible. This feature is particularly beneficial in regions with limited access to modern telecommunications infrastructure. In many developing countries, short wave transmitters serve as a lifeline for information dissemination, enabling communities to stay informed about critical news and events.Moreover, the flexibility of short wave transmitters allows for various broadcasting formats, including voice, music, and data transmission. Many international broadcasters utilize short wave transmitters to reach global audiences, providing diverse content that caters to different cultures and languages. This aspect of shortwave communication fosters a sense of connection among people worldwide, transcending geographical barriers.However, despite their numerous benefits, short wave transmitters also face challenges in the modern age. The advent of digital communication technologies, such as satellite and internet-based services, has led to a decline in the use of traditional shortwave broadcasting. Many listeners have shifted to more convenient and reliable forms of communication, prompting some broadcasters to reduce their shortwave operations.Nevertheless, short wave transmitters continue to hold relevance, especially in emergency situations. During natural disasters or political unrest, when conventional communication networks may fail, short wave transmitters can provide essential information and updates to affected populations. Their ability to operate independently of local infrastructure makes them invaluable in crisis management.In conclusion, the short wave transmitter remains a vital component of global communication, bridging gaps and connecting people across vast distances. While it faces competition from newer technologies, its unique advantages ensure that it will continue to serve important functions, particularly in areas where other communication methods are unavailable. Embracing the legacy of short wave transmitters while adapting to the evolving landscape of communication technology will be key to ensuring that this remarkable invention continues to thrive in the future.

在通信技术领域，短波发射器（short wave transmitter）是指一种在短波频率范围内发射无线电波的设备，通常为3到30 MHz。这些发射器在远程通信中发挥着至关重要的作用，使信号能够通过反射电离层传播数千英里。短波发射器的重要性不容小觑，因为它们在广播、业余无线电和紧急通信等各种应用中都发挥了重要作用。历史上，短波发射器在20世纪初出现，当时无线电技术仍处于起步阶段。由于其能够在没有广泛基础设施的情况下进行远距离传输，短波发射器迅速流行开来。例如，在第二次世界大战期间，短波发射器被用于不同大陆之间的军事单位之间的通信，证明了其可靠性和有效性。使用短波发射器的一个显著优势是其能够到达其他通信形式可能不可行的偏远地区。这一特点在现代电信基础设施有限的地区尤为有利。在许多发展中国家，短波发射器作为信息传播的生命线，使社区能够及时了解重要新闻和事件。此外，短波发射器的灵活性允许多种广播格式，包括语音、音乐和数据传输。许多国际广播公司利用短波发射器向全球受众传播内容，提供满足不同文化和语言需求的多样化内容。这种短波通信的特性促进了全球人民之间的联系，超越了地理障碍。然而，尽管有诸多好处，短波发射器在现代时代也面临挑战。数字通信技术的出现，如卫星和基于互联网的服务，导致传统短波广播的使用下降。许多听众已经转向更方便和可靠的通信形式，促使一些广播公司减少短波运营。尽管如此，短波发射器在紧急情况下仍然具有相关性。在自然灾害或政治动荡期间，当常规通信网络可能失效时，短波发射器可以向受影响的人群提供必要的信息和更新。它们能够独立于当地基础设施运行，使其在危机管理中极具价值。总之，短波发射器（short wave transmitter）仍然是全球通信的重要组成部分，弥合差距并连接跨越广阔距离的人们。虽然它面临来自新技术的竞争，但其独特的优势确保它将继续发挥重要作用，特别是在其他通信方法不可用的地区。拥抱短波发射器的遗产，同时适应不断变化的通信技术格局，将是确保这一杰出发明在未来继续蓬勃发展的关键。