What is the only oscillator capable of meeting the precision and stability demanded by the FCC?(a) Armstrong Oscillator(b) Crystal Oscillator(c) Hartley oscillator(d) RC Phase Shift OscillatorThis question was posed to me during an interview.My question is taken from Radio Transmitters in chapter Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics

What is the only oscillator capable of meeting the precision and stabi

1.	What is the only oscillator capable of meeting the precision and stability demanded by the FCC?(a) Armstrong Oscillator(b) Crystal Oscillator(c) Hartley oscillator(d) RC Phase Shift OscillatorThis question was posed to me during an interview.My question is taken from Radio Transmitters in chapter Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics
Answer» Right option is (b) Crystal OSCILLATOR To elaborate: The transmitter MUST remain on the assigned frequency. It must not drift off or wander from its assigned VALUE despite the many operating CONDITIONS, such as wide temperature variations and CHANGES in power supply voltage, that affect frequency. The only oscillator capable of meeting the precision and stability demanded by the FCC is a crystal oscillator.

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