Kencraft India Private Limited
Mumbai, Maharashtra
22663

DIGITAL COMMUNICATION

TELECOMMUNICATIONS

Fiber Optic Trainer TLB010A

  • 660nm & 950nm Transmitter

  • Two Nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board FM Modulation & Demodulation

  • On - board PWM Modulation & Demodulation

  • On - board PPM Modulation & Demodulation

  • On - board 4th Order Low Pass Filter

  • On - board Fault Switch

  • Fiber Optic Analog & Digital Link

  • Intensity mod. using Analog & Digital Input Signal

  • Propagation Loss, Bending Loss in Optical Fiber

  • Measurement of Numerical Aperture

  • Characteristics of F - O Converter using OPM

  • Measurement of Power & Propagation Loss using OPM

  • E - O Converter using Power Meter

  • Setting up of Fiber Voice Link using Intensity Mode

  • Study of FM, PWM & PWM modulation & demodulation

  • Study of PC to PC Communication using FO Digital Link

  • 660nm & 950nm Transmitter

  • Two Nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board FM Modulation & Demodulation

  • On - board PWM

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Advance Fiber Optics Communication Trainer TLB010B

  • 660nm & 850 / 950nm Transmitter

  • Two nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board Manchester Coding / Decoding

  • On - board Noise Generator & PRBS Generator

  • On - board Bit Error Rate Measurement

  • On - board PC to PC Communication

  • On - board 4th Order Low Pass Filter

  • On - board Fault Switch

 

  • 660nm & 850 / 950nm Transmitter

  • Two nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board Manchester Coding / Decoding

  • On - board Noise

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Fiber Optic Trainer TLB010A

  • 660nm & 950nm Transmitter

  • Two Nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board FM Modulation & Demodulation

  • On - board PWM Modulation & Demodulation

  • On - board PPM Modulation & Demodulation

  • On - board 4th Order Low Pass Filter

  • On - board Fault Switch

  • Fiber Optic Analog & Digital Link

  • Intensity mod. using Analog & Digital Input Signal

  • Propagation Loss, Bending Loss in Optical Fiber

  • Measurement of Numerical Aperture

  • Characteristics of F - O Converter using OPM

  • Measurement of Power & Propagation Loss using OPM

  • E - O Converter using Power Meter

  • Setting up of Fiber Voice Link using Intensity Mode

  • Study of FM, PWM & PWM modulation & demodulation

  • Study of PC to PC Communication using FO Digital Link

  • 660nm & 950nm Transmitter

  • Two Nos. of Photo Detector

  • On - board Sine & Square wave generator

  • On - board FM Modulation & Demodulation

  • On - board PWM

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Frequency Division Mux / Demux Trainer TLB011

  • Carrier Frequency Generation

  • DSBAM Generation & Demodulation Circuit

  • Generation of Frequency Division Multiplexer signal

  • Generation of Frequency Division Demultiplexer signal

  • Carrier Frequency Generation

  • DSBAM Generation & Demodulation Circuit

  • Generation of Frequency Division Multiplexer signal

  • Generation of Frequency Division Demultiplexer signal

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TDM Pulse Amplitude Mod / Demod Trainer TLB002

  • On - board Sinewave generator

  • 4 Analog Input Channels for Mux / Demux

  • Clock regeneration at receiver using PLL

  • Study Time Division Multiplexing & De multiplexing :

    • Using Pulse Amplitude Modulation & Demodulation with channel identification information

    • Using PLL method

  • On - board Sinewave generator

  • 4 Analog Input Channels for Mux / Demux

  • Clock regeneration at receiver using PLL

  • Study Time Division Multiplexing & De multiplexing :

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Laser Diode Trainer TLB010C

  • 660nm Laser Diode Transmitter

  • Photo Detector

  • On - board Sine wave & Square wave generator

  • On - board Power Meter

  • On - board 4th Order LPF

  • On - board PC to PC Communication

  • In - Built Power Supply

  • Characterization of a Laser Diode

  • Study of ACC & APC Mode of Operation

  • Design & Evaluation of an LD Analog Intensity Modulation (IM) system

  • Design & Evaluation of an LD Digital Transmission System

  • Transmission of Laser through an Optical Fiber

  • FO Numerical Aperture Measurement

  • Setting up Fiber Optic Digital Link

  • Forming PC to PC Communication Link using Optical PMMA & RS-232 Interface

  • 660nm Laser Diode Transmitter

  • Photo Detector

  • On - board Sine wave & Square wave generator

  • On - board Power Meter

  • On - board 4th Order LPF

  • On - board PC to PC

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PAM / PWM / PPM Mod / Demod Trainer TLB008

  • Digital Modulation & Demodulation techniques using Natural & Flat-top sampling

  • On - board 250Hz, 500Hz, 1KHz, 2KHz Sinewave generator

  • Sampling Clock of 4, 8,16, 32 KHz

  • On - board 4th order Butteworth LPF

  • Study of Pulse Amplitude Modulation & Demodulation

  • Study of Pulse Width Modulation & Demodulation

  • Study of Pulse Position Modulation & Demodulation

  • Digital Modulation & Demodulation techniques using Natural & Flat-top sampling

  • On - board 250Hz, 500Hz, 1KHz, 2KHz Sinewave generator

  • Sampling Clock of 4, 8,16, 32 KHz

  • On -

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Delta & Adaptive Delta Mod / Demod Trainer TLB005

  • On - board 250Hz, 500Hz,1KHz, 2KHz Sinewave generator

  • Sampling rate of 8KHz, 16KHz, 32KHz, 64KHz

  • On - board Compander & Expander

  • On - board Gain integration setting

  • On - board 4th order Butter-worth LPF

  • Study of Delta Modulation & Delta Demodulation

  • Study of Slope Overload & Increased Integration Gain in Delta Modulation

  • Study of Adaptive Delta modulation and CVSD

  • On - board 250Hz, 500Hz,1KHz, 2KHz Sinewave generator

  • Sampling rate of 8KHz, 16KHz, 32KHz, 64KHz

  • On - board Compander & Expander

  • On - board Gain integration setting

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Signal Sampling & Reconstruction Trainer TLB001

  • On - board synchronized Sinewave generator

  • Sampling frequency 2,4,8,16,32 KHz

  • Sampling Duty cycle of 0 - 90 % in steps

  • On - board separate Sample and Sample & Hold circuit

  • On - board 2nd & 4th Order Butterworth Filters

  • Aliasing & effect on Reconstructed Signal

  • Effect on Amplitude of Reconstructed Signal

  • Switch Faults

  • On - board synchronized Sinewave generator

  • Sampling frequency 2,4,8,16,32 KHz

  • Sampling Duty cycle of 0 - 90 % in steps

  • On - board separate Sample and Sample & Hold circuit

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TDM Pulse Code Modulation Transmitter Trainer TLB003

  • Internal 500Hz & 1KHz Sinewave generator

  • Variable Amplitude DC Level

  • 2 Nos. of Analog Input Channels

  • Error Check code option (None, Even, Odd, Hamming) None, Even, Odd, Hamming Parity selections

  • Pseudo random sync. code generation

  • 2 modes of operation Fast (240 KHz / Channel approx) & Slow (1Hz / Channel approx)

  • Internal 500Hz & 1KHz Sinewave generator

  • Variable Amplitude DC Level

  • 2 Nos. of Analog Input Channels

  • Error Check code option (None, Even, Odd, Hamming) None, Even, Odd, Hamming

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TDM Pulse Code Demodulation Receiver Trainer TLB004

  • Two Channel TDM PCM Receiver

  • On - board 4th order Butteworth LPF

  • On - board PLL Technique for regeneration

  • Error Check code (None, Even, Odd, Hamming)

  • None, Even, Odd, Hamming Parity selections

  • Pseudo random sync code generation

  • Two Channel TDM PCM Receiver

  • On - board 4th order Butteworth LPF

  • On - board PLL Technique for regeneration

  • Error Check code (None, Even, Odd, Hamming)

  • None, Even,

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Data Conditioning & Modulation Transmitter Trainer TLB006

  • On - board 1MHz (0°), 1MHz (180°), 2MHz (0°) Carrier Generator

  • On - board Clock and Coding data

  • Data formats : NRZ-L, NRZ-M, NRZ-S, Biphase (Manchester), Biphase-M, Biphase-S, URZ, AMI

  • Study of ASK, PSK, FSK Modulator

  • On - board Unipolar to Bipolar & Bipolar to Unipolar conversion

  • Study of Data Coding & Decoding Techniques for Non-return to Zero

  • Study of Data Coding & Decoding Techniques for Phase Encoded Format

  • Study of Data Coding & Decoding Techniques for Return to Zero Format & Multilevel binary format

  • On - board 1MHz (0°), 1MHz (180°), 2MHz (0°) Carrier Generator

  • On - board Clock and Coding data

  • Data formats : NRZ-L, NRZ-M, NRZ-S, Biphase (Manchester), Biphase-M, Biphase-S, URZ, AMI

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Data Reconditioning & Carrier Demodulation Trainer TLB007

  • Data formats : NRZ-L, NRZ-M, NRZ-S, Biphase (Manchester), Biphase-M, Biphase-S, URZ, AMI

  • Receiver Clock generated by PLL

  • Study of ASK, PSK, FSK Demodulator

  • Study of different Data formats to NRZ-L Format

  • Data formats : NRZ-L, NRZ-M, NRZ-S, Biphase (Manchester), Biphase-M, Biphase-S, URZ, AMI

  • Receiver Clock generated by PLL

  • Study of ASK, PSK, FSK Demodulator

  • Study of different

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Audio Input / Output Trainer TLB009

  • Converts audio input signal from Mic / Tape to AF electrical signals

  • Converts AF electrical signals to audible output

  • Voice Communication using dynamic Mic & Speaker

  • Variable gain audio amplifier & LPF

  • Converts audio input signal from Mic / Tape to AF electrical signals

  • Converts AF electrical signals to audible output

  • Voice Communication using dynamic Mic & Speaker

  • Variable

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QPSK / DQPSK Demodulation Trainer TLB025

  • Dibit Pair, Differential Encoding type data format for decoding

  • Receiver Clock generated by PLL method

  • Switch faults

  • Observation of constellation diagram

  • Quadrature Phase Shift Keying Modulation & Demodulation technique

  • Differential Quadrature Phase Shift Keying Modulation & Demodulation technique

  • Dibit Pair, Differential Encoding type data format for decoding

  • Receiver Clock generated by PLL method

  • Switch faults

  • Observation of constellation diagram

  • Quadrature

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DPCM / ADPCM Modulation / Demodulation Trainer TLB029

  • On - board DPCM modulation using sampler, quantizer & linear predictor

  • On - board Buffer is provided using LF353

  • On - board DPCM demodulation using linear predictor, Integrator & Low pass Filter

  • Study DPCM modulation & Demodulation

  • Study ADPCM modulation & Demodulation

  • Study Quantization Error

  • Effect of Switch faults

  • On - board DPCM modulation using sampler, quantizer & linear predictor

  • On - board Buffer is provided using LF353

  • On - board DPCM demodulation using linear predictor, Integrator & Low pass

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Paras Dagli ( Manager ) Kencraft India Private Limited No. 112, New Apollo Industrial Estate, Mogra Lane, Nagardas Road Andheri East, Mumbai - 400069, Maharashtra, India

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