Item No.: CO4204-9N

Course AM transmission and receiving technology

Includes:

  • 1 Experiment card with AM modulator/demodulator, AM modulator switchable between AM/DSB, product demodulator and diode detector
  • 1 Experiment card with AM receiver and HF input stage
  • 1 Experiment card with AM IF (intermediate frequency-), LF (low-frequency) amplifier
  • 1 Experiment card with Colpitts-/Hartley-Oscillator
  • Storage case
  • Labsoft browser and course software

Course contents:

  • Introduction to the design and function of Hartley- and Colpitts oscillators
  • Tuning oscillators
  • Introduction to principles of capacitive and inductive feedback
  • Investigation of resonance conditions (self-excitation) by measurement
  • Design and investigation of an AM transmitter
  • Tuning an oscillator and measuring various degrees of modulation
  • Measuring the frequency response of the output voltage of an oscillator
  • Design and investigation of an AM receiver
  • Introduction to the principle of receiver design
  • Tuned radio frequency receivers
  • Superhet receivers
  • Automatic gain control AGC
  • Automatic frequency control AFC
  • Investigation of a phase discriminator (Foster-Seeley) by measurement
  • Introduction to the terms signal-to-image ratio (far-off selectivity) with and without pre-selector stage
  • Demonstration and determination of the image frequency in superhet receivers by measurement
  • Investigation of filter curves of high-frequency input stages IF amplifiers by measurement
  • Determination of adjacent-channel selectivity
  • Design of a medium-wave AM single stage superhet receiver with full-range tuning
  • Course duration 4.5 h approx.