FM Transmitter & Receiver Trainer (VPL-CT-FMTR)

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. Detuned Resonant Detector.
  2. Ouadrature Detector.
  3. Foster – Seeley Detector.
  4. Ratio – Detector.
  5. 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