Technical Specifications
 

• The board consist of a stereo FM receiver of up-to-date design, operating in the VHF wave range, carried out with dedicated integrated circuits. 
• This panel contain a complete stereophonic FM receiver in the VHF range (88 ÷ 108MHz). 
• The circuit correspond to a classic FM receiver that will use commercial integrated circuits and allow the pupil to examine carefully the fundamental points of view of the reception processing of the frequency modulated signals; besides, it is allow to initiate the pupil into the search technique of some typical failures that can be artificially inserted in the receiver itself. 

Technical features: 
 

• The receiver of the super heterodyne type shall  include: the antenna circuit with varicap tuning, the frequency converter, the intermediate frequency amplifier, the quadrature detector with automatic frequency control. 
• Complete with PLL stereo decoder, two audio amplifiers and two loudspeakers. 
• A micro switch system, hidden behind a door, shall allow to introduce 8 faults in the receiver circuits. 
• Frequency range: from 88 to 108 MHz, 
• Intermediate frequency: 10.7 MHz, 
• Oscillator: 76 kHz (VCO), 
• Output power: 2 x 1 W at 8 N, 
• Power supply: + 15 Vdc, 500 mA. 
• Theoretical recalls: frequency modulation, FM receiver, radio stereophony, stereo decoder
• With this module it is possible to perform the following experiments: 
• FM receiver, receiver input stage, detector stage, AFC circuit, muting circuit, stereo demodulator, audio amplifiers, loudspeaker, trouble shooting