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Which components are used to correct tracking error?

  • A.Padder and trimmer capacitors
  • B.Neutralising capacitors
  • C.De-emphasis networks
  • D.Bypass capacitors on the supply

Answer: A

A series padder and a parallel trimmer, adjusted at the low and high ends of the band respectively, bring the oscillator onto the required curve at three points, leaving small errors in between. Neutralising capacitors cancel feedback in an amplifier. De-emphasis belongs to FM. And supply bypassing is a decoupling measure. Each small adjustable component in a receiver has one specific job, and the alignment procedure sets them in a defined order.

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