UNIT 4 PREPARATION SHORTS

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 TRANSMITTERS AND RECEIVERS

  1. Specifications of AM transmitters ?
  2. Specifications of FM transmitters ?
  3. Differences between AM low level & AM high level transmitters ?
  4. Block diagram of AM low level transmitter ?
  5. Block diagram of AM high level transmitter ?
  6. Block diagram of Arm strong FM transmitter *(indirect method) ?
  7. Define sensitivity, selectivity, fidelity ?
  8. Block diagram of TRF receiver?
  9. Define Heterodyning , Super Heterodyning ?
  10. Block diagram of Super heterodyne AM receiver?
  11. Need of AVC/AGC ?
  12. Draw circuit diagram of demodulation in AM receiver ?
  13. Draw circuit diagram of Foster Seely Discriminator ?

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