FM Transmitter and Receiver Trainer

SALIENT FEATURES

• On board Audio Oscillator FM Modulator, Demodulator, Low Pass Filter, Amplitude Limiter & Filter Sections.
• Onboard Test Points & Fault Switches.
• On board audio jacks provided for Microphone and Earphone connection.
• Onboard speaker provided for Audio.
• Onboard Transmitting antenna.

TECHNICAL SPECIFICATIONS

•  Audio Oscillator : With adjustable Amplitude and Frequency (300Hz – 3.4kHz).
•  FM Modulator :
  1. – a) Reactance Modulator (with carrier Frequency adjustment).
  2. – b) Varactor Modulator (with carrier Freq. Adjustment).
•  Mixer / Amplifier : 1 No. (With Gain adjustment) Allows FM input signal to be amplitude modulated by a noise input prior to demodulation).
•  Transmitter O/P Frequency : 455KHz.
•  FM Demodulator :
  1. – a) Detuned Resonant Detector.
  2. – b) Ouadrature Detector.
  3. – c) Foster – Seeley Detector.
  4. – d) Ratio – Detector.
  5. – e) Phase Locked Loop Detector.
•  Low Pass Filter : 3.4KHz. Cut off Freq. (with adjustable gain).
•  Amplitude Limiter : 1 No.
•  Fault Switches : 8 nos. through 8 way DIP switch for troubleshooting at different blocks.
•  Test Points : 74.
•  Interconnections : 2/4 mm banana socket.
•  Cabinet : Enclosed in ABS plastic cabinet with detachable cover.
•  Power : 220V AC ±10%, 50/60Hz mains operated.
•  Accessories : Set of Patch Cords, User’s manual.

LIST OF EXPERIMENTS

•  Study of FM modulation technique.
•  Effect of noise on FM transmission.
•  Study of Tuned Circuits.
•  Separate VCO circuit to demonstrate FM waveform.

OPTIONAL ACCESSORIES
♦ Multimedia interactive computer based training manual