Motorboating

{
  "id": "MLC-T-MET-007420",
  "term": "Motorboating",
  "field": "Meteorology and atmospheric science",
  "definition": "A low-frequency, putt-putt oscillation of a few cycles per second that appears in an amplifier or receiver when unwanted feedback through a shared power supply makes a stage swing repeatedly between high and low gain. It is heard as a motorboat-like throb in audio output and shows as slow pulsing on a signal trace. Its repetition rate falls between roughly 1 and 20 hertz.",
  "url": "https://mlchart.com/terminology/meteorology/motorboating/"
}