Modulator

{
  "id": "MLC-T-MET-007363",
  "term": "Modulator",
  "field": "Meteorology and atmospheric science",
  "definition": "A device that imposes a signal onto a carrier wave by varying one or more of its properties, such as amplitude, frequency, or phase. In remote sensing systems like weather radar, a modulator controls the timing and characteristics of the transmitted microwave pulses. The modulator's function is to switch the high-power amplifier that generates the radar pulse on and off with precise timing, shaping the outgoing signal.",
  "url": "https://mlchart.com/terminology/meteorology/modulator/"
}