oscillator keying meaning

• [Electronics]
  Keying by making and breaking the signal output, direct-current (dc) power, or dc bias of the oscillator stage of a radiotelegraph transmitter.
  
  
  oscillator synchronization The locking of an oscillator in step with another signal source, such as a frequency-standard generator.
  

• keying:    [Electronics]1. Th ...
• keying in:    [Architecture]The ...
• oscillator:    Noun: oscillator&n ...