AM / FM Radio Receiver

AM / FM Radio Receiver
Scientech2661A

Product Description

Scientech TechBooks are compact and user friendly learning platforms to provide a modern, portable, comprehensive and practical way to learn Technology. Each TechBook is provided with detailed Multimedia Product Tutorial which covers basic theory, step by step procedure to conduct the experiment and other useful information.

Scientech 2661A AM / FM Radio Receiver is a comprehensive learning solution specifically designed to study and understand the working principle and basic operation of both types of superheterodyne radio receivers; AM Radio Receiver and FM Radio Receiver. The TechBook provides the conceptual and step by step understanding of a superheterodyne receiver system through measurement of voltages and observation of waveforms at various test points. Block wise modular

organization of circuit function with supporting technical information makes it easy to understand the process of AM / FM reception and demodulation. The exercises conceived to provide a practical approach to the subjects enable a deep analysis of the subjects and will guide the students to understand each function.

Scientech 2661A, AM / FM Radio Receiver is an ideal platform to enhance education, training, skills & development amongs our young minds.

Product Features

  • A self contained TechBook
  • Functional blocks with self explanatory waveforms and technical
  • details indicated on board
  • On board Tuner provided for tuning the AM/FM transmitting stations
  • Interconnections between different section using 2mm patch cords
  • More than 50 test points for waveform observation and analysis
  • 12 Switched faults for troubleshooting at different functional blocks
  • Telescopic antenna for reception of AM/FM signal
  • On board audio jack provided for Earphone connection
  • On board Speaker provided for audio communication
  • Product Tutorial

Scope of Learning

  • Double Sideband AM Reception and study of Diode Detector

  • Single Sideband AM Reception and study of Product Detector

  • Operation of the Automatic Gain Control Circuit (AGC)

  • To plot Selectivity curve for AM radio receiver

  • To plot Sensitivity curve for AM radio receiver

  • To plot Fidelity curve for AM radio receiver

  • FM Reception and study of Ratio Detector

  • AM / FM Radio Receiver

Technical Specification

Audio Output
Amplifier with speaker
Tuning
Variable capacitor (ganged) dial marking on board
Receiving media
Telescopic antenna / RF cable
Switched Faults
12 Nos
Test Points
50 Nos
Power Supply
110-220 V AC ±10%, 50/60Hz
Power Consumption
3VA (approximately)
Interconnections
12mm Banana sockets
Operating Conditions
0-40 C, 80% RH
Dimensions (mm)
W 326 × D 252 × H 52
Weight
3 Kg approximately
Product Tutorials
Online (on ScientechLearning.com)

AM Receiver

Construction
Superheterodyne
AM Frequency Band
530 KHz – 1650 KHz
Local Oscillator Freq. Range
980 KHz to 2.060 MHz
Intermediate Frequency (IF)
455 KHz
Input Circuits
1. RF amplifier
2. Mixer
3. Local oscillator
4. Beat frequency oscillator
5. IF amplifier 1
6. IF amplifier 2
7. Automatic Gain Control
AM Detectors
1. Diode detector (for DSB)
2. Product detector (for SSB)

FM Receiver

Construction
Superheterodyne
FM Frequency Band
88 MHz to 108 MHz
Tuning Range
96 MHz to 120 MHz
IF Frequency
10.7 MHz
Input Circuit
1. RF amplifier
2. Mixer
3. Local oscillator
4. IF amplifier 1
5. IF amplifier 2
6. FM Detector
7. Automatic Frequency Control

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