radiotelegraphy

/'reidiouti'legrəfi/

Thân thiện

A radio operator sends a message using radiotelegraphy.

Definition

1. Noun:
   • Wireless telegraphy: The technology or process of sending telegraphic messages using radio waves, typically employing Morse code, as opposed to using physical wires or cables for transmission.

Usage

• General use: Refers to the historical method of long-distance communication.
  • Early 20th-century ships relied on radiotelegraphy for distress calls.
  • The invention of radiotelegraphy revolutionized maritime communication.

Advanced Usage

• Technical context: Often discussed in the history of technology, telecommunications, or amateur radio (ham radio) operations.
  • The study of radiotelegraphy includes understanding modulation techniques for continuous-wave signals.
  • Many radio enthusiasts still practice radiotelegraphy as a skilled hobby.

Variants and Related Words

• Radiotelegraph (noun): A message sent by this method; also, the apparatus used.
  • The operator received a vital radiotelegraph.
• Radiotelegraphic (adjective): Pertaining to radiotelegraphy.
  • The ship was equipped with radiotelegraphic apparatus.
• Wireless telegraphy: A direct synonym for radiotelegraphy.

Synonyms

• Wireless telegraphy: The most common synonym, emphasizing the absence of wires.
• Radio telegraphy: A variant form with identical meaning.

Related Phrases

• Spark-gap telegraphy: An early, specific form of radiotelegraphy.
  • Spark-gap telegraphy was the precursor to more modern radio systems.

Học thuật

Noun

1. the use of radio to send telegraphic messages (usually by Morse code)
2. telegraphy that uses transmission by radio rather than by wire

Từ đồng nghĩa

• radiotelegraph
• wireless telegraph
• wireless telegraphy