long wave

Thân thiện

A radio engineer adjusts the long wave transmitter at the broadcasting station.

Definition

Noun: A radio wave with a wavelength longer than 1000 meters (one kilometer), corresponding to a frequency below 300 kilohertz (kHz). This band of the radio spectrum is used for long-distance radio broadcasting and communication, especially in Europe.

Usage

"Long wave" refers specifically to a type of electromagnetic radiation used in radio transmission. It is used as a countable noun, often in the context of broadcasting bands or radio technology. - The station broadcasts on long wave. - Long wave signals can travel very long distances, especially over water or at night.

Advanced Usage

• "on long wave": Used to specify the broadcast band of a radio station.
  • You can listen to the national news on long wave.
• "long wave radio": A compound term describing radio sets capable of receiving these signals or the broadcasting system itself.
  • He still owns an old long wave radio.

Variants and Related Words

• Longwave (adj): An alternative spelling, often used attributively (e.g., longwave band, longwave transmission).
• Medium wave (MW) (n): The adjacent radio band with shorter wavelengths (typically 100-1000 meters).
• Short wave (SW) (n): The radio band with much shorter wavelengths (typically 10-100 meters).

Synonyms

• Low frequency (LF) radio wave: A more technical synonym, as the long wave band occupies the low-frequency part of the radio spectrum.

Related Phrases

• Long wave band: The specific range of frequencies allocated for long wave broadcasting.
  • Fewer stations operate in the long wave band now.

Học thuật

Noun

1. a radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz)