long wave - Definition & Meaning

a radio wave with a frequency under 300 kHz and a wavelength of more than 1 kilometer that is used for broadcastinga radio wave with a frequency under 300 kHz and a wavelength of more than 1 kilometer that is used for broadcasting

Long wave refers to a type of radio signal with very low frequency and long wavelength, typically ranging from 30 kHz to 300 kHz. These signals can travel great distances, even around obstacles like mountains, by following the Earth's surface or reflecting off the atmosphere. Long wave is often used for applications like sea communication, navigation systems, and broadcasting in areas where signals need to cover large regions with minimal loss of strength. It is less commonly used today due to advancements in other communication technologies.Long wave refers to a type of radio signal with very low frequency and long wavelength, typically ranging from 30 kHz to 300 kHz. These signals can travel great distances, even around obstacles like mountains, by following the Earth's surface or reflecting off the atmosphere. Long wave is often used for applications like sea communication, navigation systems, and broadcasting in areas where signals need to cover large regions with minimal loss of strength. It is less commonly used today due to advancements in other communication technologies.

例句

The radio station broadcasts on a long wave frequency, allowing it to be heard over vast distances.
广播电台以长波频率广播，使其能够在很远的距离被听到。
Ships use long wave communication to stay in touch with coastal stations.
船舶使用长波通信与海岸站保持联系。
During storms, long wave signals are often less affected by weather conditions than other types of radio signals.
在暴风雨期间，长波信号通常比其他类型的无线电信号受天气条件的影响更小。