C.W. transmitters and keying

Explanation of question 7

An HF transmitter has a power amplifier using a broadband transformer. The term ‘broadband’ means it

  1. can be used over a comparatively large frequency range
  2. can be used only at a specific frequency
  3. can be operated at HF, VHF., and UHF.
  4. automatically filters any harmonics

The answer is :- 1 A broadband transformer is one which can be used over a comparatively wide frequency range.

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