Basic Communication Lab

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Adaptive Delta Modulation & Demodulation

Adaptive Delta Modulation & Demodulation

Adaptive Delta Modulation & Demodulation SALIENT FEATURES Both Transmitter & Receiver on same board Clock generation from crystal 4 switch selectable sampling rates On – Board Generators at 4 different frequencies (Synchronized) Separate Adjustable DC Level Selectable integrator gain setting (by switch or control circuit) On – Board 4th order butter worth L.P. Filter Unipoar … Continue reading “Adaptive Delta Modulation & Demodulation”





Amplitude Modulation & Demodulation

Amplitude Modulation & Demodulation

Amplitude Modulation & Demodulation DMM Measurement of AC & DC Current EMM Measurement of AC & DC Voltage EMM Measurement of Ac & Dc Current Signal Conditioner & I/P Circuit Time base with Crystal Control Gate & Reset Control Unit % Digital Display Unit Decoder Latch & Decade Pulse Counter        Feature:    … Continue reading “Amplitude Modulation & Demodulation”





Amplitude Shift Keying (ASK) Modulation & Demodulation

Amplitude Shift Keying (ASK) Modulation & Demodulation

Amplitude Shift Keying (ASK) Modulation & Demodulation Experimental training board has been designed specifically for the study of amplitude shift key modulation and demodulation. The board is absolutely self contained and requires only CRO. Practical experience on this board carries great educative value for science and engineering students. Features: The board consists of the following built-in … Continue reading “Amplitude Shift Keying (ASK) Modulation & Demodulation”





Analog Signal Sampling & Reconstruction

Analog Signal Sampling & Reconstruction

Analog Signal Sampling & Reconstruction On-board signals Sine wave Frequency: 1 KHz, 2 KHz Amplitude: 0 ~ 5Vpp Sampling Clock  Internal frequency : 2 KHz, 4 KHz, 8 KHz, 16 KHz, 32 KHz, and 64 KHz Duty cycle : 10 ~ 90% selectable in steps of 10%  Sampling Method Natural sampling circuit Sample and hold … Continue reading “Analog Signal Sampling & Reconstruction”





Bread Board Trainer

Bread Board Trainer

Bread Board Trainer Specifications:  Output D.C. Voltage : Fixed 5V ±1%.  Output Current : 2 Amp.  Output D.C. Voltage : Fixed 15V ±1%.  Output Current : 500 mA.  Load Regulation : ±1% of the highest specified output voltage.  Ripple And Noise : less than 5 mV.  Clock Pulses : 1 Hz and 1 KHz by manual pulser.  Logic Inputs : 8 switches for High/Low.  Bread Board : 3 mains strips … Continue reading “Bread Board Trainer”





Delta Modulation & Demodulation

Delta Modulation & Demodulation

Delta Modulation & Demodulation FEATURES: DELTA MODULATION: The modulation circuit consists of IC’s LM741 and CD4013. IC-LM741 functions as a comparative circuit and IC-CD4013 is an D-Flip-flop, functions to hold the quantized error signal during sampling signal. DEMODULATION:  The Demodulation circuit consists of IC’s CD4016. The IC CD4016 is an quad bilateral switch. The bilateral … Continue reading “Delta Modulation & Demodulation”





Double Side Band (DSB-SC) Modulation & Demodulation

Double Side Band (DSB-SC) Modulation & Demodulation

Double Side Band (DSB-SC) Modulation & Demodulation DSB-SC is used to study DSB-SC amplitude modulation and demodulation. Everything is available on board and no external Function generator is required. This kit has been designed keeping students in mind so its very easy to understand and use. Specification:- On board modulating audio signal generator On board … Continue reading “Double Side Band (DSB-SC) Modulation & Demodulation”





Fiber Optic Trainer (Analog and Digital Link With Inbuilt Oscillator)

Fiber Optic Trainer (Analog and Digital Link With Inbuilt Oscillator)

Fiber Optic Trainer (Analog and Digital Link With Inbuilt Oscillator) Objective:  To construct a Optical Transmitter and Transmission of Signal through Fiber Optics Cable. To construct a Optical Receiver  &  study the Attenuation of Signal when transmitted from Transmitter to Receiver end. Analog & Digital Link can also be studied as this unit is complete … Continue reading “Fiber Optic Trainer (Analog and Digital Link With Inbuilt Oscillator)”





Frequency Division Multiplexer & Demultiplexer

Frequency Division Multiplexer & Demultiplexer

Frequency Division Multiplexer & Demultiplexer Frequency Division Multiplexer/Demultiplexer Trainer Salicon  demonstrates FDM technique. It basically fulfills the need for communication of two different inputs through a single channel by Frequency Division Multiplexing method. It has the provision for on board modulating signal For reducing the complexity same carriers are used for demodulation also. In actual … Continue reading “Frequency Division Multiplexer & Demultiplexer”





Frequency Modulation & Demodulation

Frequency Modulation & Demodulation

Frequency Modulation & Demodulation Experimental Training Board has been designed specifically for the study of Frequency Modulation and Demodulation. Practical experience on this board carries great educative value for Science and Engineering Students. Features: The board consists of the following built in parts: ± 12V D.C. at 100 mA, IC Regulated Power Supply Carrier generator circuit which … Continue reading “Frequency Modulation & Demodulation”





Frequency Shift Keying (FSK) Modulation & Demodulation

Frequency Shift Keying (FSK) Modulation & Demodulation

Frequency Shift Keying (FSK) Modulation & Demodulation Panel lay out diagram with components mounted on PCB/ panel covered with plastic sheet, Built in DC. Power supply, On Board Carrier generator, On Board data generator, FSK Demodulator circuit, set of patch cords , user manual & test sockets should be provided.  Carrier Generation 40 KHz Power … Continue reading “Frequency Shift Keying (FSK) Modulation & Demodulation”





PAM/PPM/PWM Modulation & Demodulation

PAM/PPM/PWM Modulation & Demodulation

PAM/PPM/PWM Modulation & Demodulation 1. Built in IC supported Regulated Power Supply ± 12V, +5V. 2. Inbuilt with a Pulse Generator Frequency compass : 8KHz, 16KHz, 32KHz, 64KHz Amplitude : 5Vpp approx. 3. Integrated with Sine Wave Audio Frequency functional generator. Frequency ambit : 1KHz & 2KHz Amplitude : 0-10Vpp & 0-4vpp approx. 4. Circuit … Continue reading “PAM/PPM/PWM Modulation & Demodulation”





Phase Shift Keying (PSK) Modulation & Demodulation

Phase Shift Keying (PSK) Modulation & Demodulation

Phase Shift Keying (PSK) Modulation & Demodulation Experimental Training Board has been designed specifically for the study of the Phase shift keying modulation and demodulation. The board is absolutely self contained and requires only CRO. Practical experience on this board carries great educative value for Science and Engineering Students. FEATURES The board consists of the following … Continue reading “Phase Shift Keying (PSK) Modulation & Demodulation”





Pulse Amplitude Modulation & Demodulation

Pulse Amplitude Modulation & Demodulation

Pulse Amplitude Modulation & Demodulation Technical Specification: 1. Built in IC based DC Regulated Power Supply ± 12VDC, +5VDC/250mA. 2. Built in Carrier Pulse Output Frequency Range : 8 KHz, 16KHz, 32KHz, 64KHZ Amplitude : 5Vpp approx. 3. Built in Sine Wave Audio Frequency Function Generator Frequency Range : 1KHz & 2KHz Amplitude : 0-10Vpp … Continue reading “Pulse Amplitude Modulation & Demodulation”





Pulse Code Modulation & Demodulation

Pulse Code Modulation & Demodulation

Pulse Code Modulation & Demodulation It has facility to generate the binary code of input signal, using analog to digital converter and time division multiplexing of two such PCM data stream. Input channels : 2 Nos. Time-division multiplexed, Pulse code modulated Onboard signals : 1KHz, 500 Hz variable amplitude synchronized sine-waves. Two variable amplitude DC levels Synchronization … Continue reading “Pulse Code Modulation & Demodulation”





Pulse Position Modulation & Demodulation

Pulse Position Modulation & Demodulation

Pulse Position Modulation & Demodulation TECHNICAL SPECIFICATION : Message Signal 1 : Frequency 500 Hz : Amplitude 0 to 5V Message Signal 2 : Frequency 1 KHz : Amplitude 0 to 5V Message Signal 3 : Frequency 2 KHz : Amplitude 0 to 5V Carrier Signal (Square): Frequency 8KHz, 16KHz, 32KHz, 64KHz : Amplitude 5V … Continue reading “Pulse Position Modulation & Demodulation”