Amplitude Demodulation Receiver Kit - Order Code 40682

SPECIFICATION

Super heterodyne AM receiver

• Frequency    :    400 KHz ~ 1.5MHz
• Intermediate frequency    :    455 Khz
• Output IF frequency    :    455 Khz adjustable
• IF Filter    :    Dual tune LC
• RF ampli?er with variable gain

Mixer (frequency converter)

• Output frequency    :    455KHz adjustable
• Band pass Filter    :    455 KHz center frequency

Local oscillator

• Frequency    :    Sine wave
• Load impedance    :    900KHz ~ 2.1MHz
• Output impedance    :    Adjustable from 0 to 2Vp-p

1st IF and 2nd IF amplifier

• Central frequency    :    455 KHz
• Load impedance    :    Variable R-L-C
• Gain    :    40dB with automatic gain control

Diode envelope detector

• Detection of the positive and negative envelope with variable RC Filter DSB

Product detector

• Operating frequency    :    Adjustable from 400 KHz ~ 500 KHz SSB
• Input amplitude    :    1Vpp

Audio output

• Amplifier with speaker
• Audio amplifier gain    :    20dB
• Receiving media

Switch faults

• 4 switch faults are provided on board to study different effects on circuit

Experiments

• Study of DSB, SSB reception using envelope diode detector and product detector
• Study of image frequencies
• Study of adjustment of receiver tuned circuits
• Voice reception using DSB/ SSB AM receiver (super heterodyne receiver)

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