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MODULATION SWITCH [3 records]

Record 1 1994-12-19

English

Subject field(s)
  • Signals (Military)
  • Air Communications (Air Forces)
  • Radar, Radio Guidance and Goniometry
CONT

These first transmissions were nothing more than Morse-coded blasts of energy-the transmitter was keyed on and off by a telegraph switch, a modulation technique known as interrupted continuous wave or ICW.

French

Domaine(s)
  • Transmissions de campagne (Militaire)
  • Communications aériennes (Forces aériennes)
  • Radar, radioguidage et radiogoniométrie
CONT

Ces premières émissions étaient de simples bouffées d'énergie électromagnétique codées en Morse, que l'on obtenait en ouvrant et en fermant le «robinet» constitué par un manipulateur de télégraphe.

Spanish

Save record 1

Record 2 1994-12-19

English

Subject field(s)
  • Signals (Military)
  • Air Communications (Air Forces)
  • Radar, Radio Guidance and Goniometry
CONT

These first transmissions were nothing more than Morse-coded blasts of energy-the transmitter was keyed on and off by a telegraph switch, a modulation technique known as interrupted continuous wave or ICW.

French

Domaine(s)
  • Transmissions de campagne (Militaire)
  • Communications aériennes (Forces aériennes)
  • Radar, radioguidage et radiogoniométrie
CONT

La radiotélégraphie par ondes modulées («ICW = interrupted continuous waves») était née.

Spanish

Save record 2

Record 3 1994-12-19

English

Subject field(s)
  • Signals (Military)
  • Air Communications (Air Forces)
  • Radar, Radio Guidance and Goniometry
CONT

These first transmissions were nothing more than Morse-coded blasts of energy-the transmitter was keyed on and off by a telegraph switch, a modulation technique known as interrupted continuous wave or ICW.

French

Domaine(s)
  • Transmissions de campagne (Militaire)
  • Communications aériennes (Forces aériennes)
  • Radar, radioguidage et radiogoniométrie
CONT

Ces premières émissions étaient de simples bouffées d'énergie électromagnétique codées en Morse, que l'on obtenait en ouvrant et en fermant le «robinet» constitué par un manipulateur de télégraphe.

Spanish

Save record 3

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