Experiments Included:

  • Main characteristics of an FM transmission system
  • Study of Modulator Types, Reactance and Varactor
  • Study of FM Transmitter Circuit

IT-4108 is designed to analyze the Techniques of Frequency Modulation using Analog signals. Trainer also contains an FM transmitter with power amplifier. Frequency modulators are also included to study the wired Frequency modulation techniques.


  • Power Supply Included
  • Required Circuits Tested
  • Each Section Clearly Marked for Input and Output
  • Each Section Works as an Independent Unit
  • Input Devices like microphone, Audio Generator Included
  • Output Devices like Speaker Included

Technical Features:

  • Audio Generator: Frequency and Amplitude adjustable.
  • Micro phone Input: Input through micro phone

FM Modulator Types:

  • Reactance Modulator
  • Varactor Modulator
  • Carrier Frequency: 455 Khz
  • FM Transmitter: Monolithic Based with ON/OFF Control
  • Frequency: 99 -105MHz
  • Power Amplifier: Built In
  • Antenna: FM Telescopic Type
  • Transmit Range: 10 feet
  • Audio Amplifier: Monolithic Type
  • Speaker: 8 Ohm with ON/OFF Control
  • Interconnections: 2 mm gold plated pins

Accessories: Power cord, Experiment Manual, Set of 2mm patch cords, Micro Phone