Radio transmitter AM/SSB/FM/Remote control

MCM24/EV

Board MCM24/EV studies an AM, DSB, SSB (LSB and USB) FM transmitter and a 4-channel radio control transmitter. 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

Low frequency processor (low pass filter, level matcher, tone generator for testing)
Modulation techniques for the following transmissions:
- AM
- DSB (Double Side Band, with balanced modulator)
- SSB (LSB and USB, using quartz filter)
- FM (VCO using varicap diode)
- Logic states (coder for 4-channel radiocontrol)
Local oscillator
Conversion mixer
RF amplifier
Radio (antenna)/cable transmission
Calibration and measurement of all stages and the whole module
Troubleshooting
System test and measurement