DSB/SSB AMPLITUDE MODULATION (AM) RECEIVER TRAINER

Product Description

DSB/SSBAMPLITUDE MODULATION (AM) RECEIVER TRAINER 

ReceiverPrinciple : Superheterodyne

Frequencyrange: 525KHz to 1625 KHz

OptionalFrequency : 400KHz to 1.5 M

IntermediateFrequency : 455 KHz

SALIENTFEATURES

On board variable capacitor tuning, LocalOscillator, BFO, RF amplifier, Mixer, If amplifier,

Detectors, AGC, Audio output amplifier

Onboard Test Points & Fault Switches

On board audio jacks provided for Microphone andEarphone connection

Onboard receiving antenna

TECHNICALSPECIFICATIONS

ReceiverPrinciple: Superheterodyne

Frequencyrange: 525 KHz to 1625 KHz

OptionalFrequency : 400KHz to 1.5 M

IntermediateFrequency: 455 KHz

Inputs:RF Signal

Output:IF frequency 455 KHz adjustable

RF Amplifier with variable gain

Mixer(Frequency converter): Input : Local Oscillator & RFOutput frequency: 455 KHz adjustable

LocalOscillator: Output signal: Sine wave for local Osc. Input.Frequency: From 900 KHz to 2.2 MHz gang tuned, Amplitude: Adjustable from 0 – 2V p-p , Output Impedance: 50 Ohms Ist IF & IInd IF Amplifier: Centralfrequency: 455 KHz, Load Impedance: Variable R-L-C

Gain:Automatic Gain Control, Gain 1-43 dB & Gain 2–47dB

DiodeEnvelope Detector: Detection of the positive and negativeenvelope with variable R-C filter DSB

ProductDetector: Operating frequency: Adjustable from 400 KHz to 500KHz

SSB Input Amplitude : 1 Volt p-p

Audio Output :Amplifier with Headphone, AudioAmplifier Gain: 20 dB

Fault Switches : 8 nos. through 8 way DIP switch fortroubleshooting at different blocks

Test Points : More than 30

Receiving Media :MV Coil antenna & via cable

Cabinet : Enclosed in ABS plastic cabinet withdetachable cover

Power : 220V AC ±10%, 50/60Hz mains operated

Accessories : Set of Patch Cords, User’s manual

LIST OF EXPERIMENTS

Study of DSB and SSB AM Reception & detection bydiode / product detectors

Study of AGC

Study of receiver tuned circuits

Study of sensitivity, selectivity & fidelity ofreceiver