Analog communications I (tuned circuits)

MCM20/EV

Board MCM20/EV studies the techniques used in analog transmissions. It is part of the Interactive Practical Electronics System IPES and works in both standard mode (using switches and consulting the handbook) or computerized mode. In this last case, the software version of the handbook inserts automatically circuit variations and faults, enabling the development of lessons even without teacher’s assistance. Pre-assembled electronic components divided into circuit blocks can be interconnected and modified by means of jumpers and connection cables. 

Training program

  • Resistive attenuators
  • Cascade attenuators
  • RLC circuits: impedance, resonant frequency, bandwidth
  • Series and parallel RLC circuits
  • Coupling of tuned circuits: by means of capacitance
  • Coupling of tuned circuits: by means of mutual inductance
  • Passive filters: constant-K and M-shunt; ”T” and “π” networks low-pass, high-pass, band-pass, band-rejection filters
  • Narrow-band ceramic filters: passband and impedance
  • Crystal filter
  • Impedance matching networks: LC networks with two and three impedances
  • Impedance matching networks: networks with autotransformer
  • Crystal oscillator: operation and frequency stability
  • Class-C modulator: analysis of the biasing network and of the wave forms
  • Impedance matching between transmitter and load; network calibrating
  • Modulation index
  • Measurement of modulator linearity
  • Ferrite antenna with adjustable-tuning sub-circuit
  • Calibration of matching between transmitter and antenna
  • Troubleshooting

Technical specifications
Required
Supply with
Optional
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