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General Lab Equipments Trainer Kits for
Microcontroller, Embedded Systems Lab
Robotics Lab
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Communication Engineering Lab
Industrial Electronics Lab
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Control of Electrical Machines Lab
Circuit Theory, DC bridge and AC bridges Lab
Analog and digital Electronics Lab
Electronic devices and circuits Lab
Electrical Workshop
ITI
General Lab Equipments Trainer Kits for
Electrician and wireman trade
Electronic Mechanic trade
Power Electronics Technician trade
Mechanic – Consumer
Arduino, Raspberry and IOT Based Project Boards
Arduino Project boards
IOT based project board
Raspberry PI Project boards
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Home
Products
Engineering Colleges and Polytechnic Colleges
General Lab Equipments Trainer Kits for
Microcontroller, Embedded Systems Lab
Robotics Lab
Power Electronics Lab
PLC Lab
Instrumentation and Control Lab
Communication Engineering Lab
Industrial Electronics Lab
Pneumatic and Hydraulics Lab
Control of Electrical Machines Lab
Circuit Theory, DC bridge and AC bridges Lab
Analog and digital Electronics Lab
Electronic devices and circuits Lab
Electrical Workshop
ITI
General Lab Equipments Trainer Kits for
Electrician and wireman trade
Electronic Mechanic trade
Power Electronics Technician trade
Mechanic – Consumer
Arduino, Raspberry and IOT Based Project Boards
Arduino Project boards
IOT based project board
Raspberry PI Project boards
Services
Courses
e Brochure
Contact Us
Communication Engineering Lab
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Communication Engineering Lab
Communication Engineering Lab
Communication Engineering Experiments
1. Construct and test Symmetrical T and Pi attenuators
Provision to wire and test Symmetrical T resistive network
To wire and test Symmetrical Pi resistive network
Variable frequency source with control
Legend printed on the PCB and wooden cabinet
2. Construct and test constant K passive Low pass filter and High pass filter
Provision to wire and test Symmetrical L and C T network circuit
To wire and test Symmetrical L and C Pi network circuit
Variable frequency source with control
Legend printed on the PCB and wooden cabinet
3. Amplitude Modulation and Demodulation Trainer Kit
Carrier generation - XR 2206 - 100 KHz to 1 MHz
Audio Signal generation – Wien Bridge Oscillator - 20 Hz to 20 KHz
XR 2206 based Amplitude Modulation at different modulation index
Diode Detector for demodulation
Legend printed on the PCB and wooden cabinet
4. AM Super Hetrodyne Radio Receiver Trainer Kit
RF stage and Mixer stages
IF amplifier, AGC and Diode detector
Complementary Symmetry Audio amplifier
Test points to check voltages and waveforms at different stages
Legend printed on the PCB and wooden cabinet
5. Study of PLL using 565
Center Frequency using R and C
VCO Operation
Tracking range and Capturing range experiment
Variable frequency source to test the PLL
Legend printed on the PCB and wooden cabinet
6. FM Modulator and Demodulator Kit
Audio signal Generator
Carrier wave generation and FM Modulation using XR 2206
FM Demodulation using NE 565 PLL
Low Pass Filter to reconstruct the signal
Legend printed on the PCB and wooden cabinet
7. PAM Generation and Detection Kit (Sampling and Reconstruction Kit)
Audio Oscillator 1 KHz and 2 KHz
Sampling Pulse generator 4KHz, 8Khz, 16KHz, 32Khz and 64Khz
Dual and Single Polarity sampling output
Reconstruction of signal using Low Pass Filter and AC Amplifier
Legend printed on the PCB and wooden cabinet
8. PWM Generation and Detection Kit
Audio Oscillator for generating modulating signal
Triangle wave generator for carrier signal
Comparator for Pulse width Modulation Generation
Reconstruction of signal using Low Pass Filter and AC Amplifier
Legend printed on the PCB and wooden cabinet
9. PPM Generation and Detection Kit
PWM Generation circuit
Pulse Position Modulation Generation
Reconstruction of PWM signal
Reconstruction of original signal using Low Pass Filter and AC Amplifier
Legend printed on the PCB and wooden cabinet
10. PCM Trainer Kit
Transmitter Section
Audio Signal 1 KHz
8 bit A/D Conversion
Latch and Parallel to Serial conversion, PCM Signal generation
Reception Section
Serial to Parallel conversion
Latch and D/A Conversion
Low pass filter and AC amplifier
Legend printed on the PCB and wooden cabinet
11. Equalizer and Cross-Over networks
Cross over network for Tweeter, Woofer and Mid range speakers
5 band Equalizer circuit, Audio frequency source – 20 Hz to 20 KHz
Separate Speakers box
Legend printed on the PCB and wooden cabinet
12. Line Coding Schemes Trainer – Encoding and Decoding
Encoders - Uni – NRZ, Bip – NRZ, Uni – RZ, Bip – RZ, Manchester encoder, AMI signal encoder,
Decoders - Uni – NRZ, Bip – NRZ, Uni –RZ, Bip – RZ, Manchester decoder, AMI signal decoder
Clock generator, 8 bit data generator
Legend printed on the PCB and wooden cabinet
13. Passive Filter Trainer Kit
First and Second Order Low Pass and High Pass Filter circuits
Band Pass Filter I and II types,
Audio frequency source – 20 Hz to 20 KHz with variable voltage and frequency
Legend printed on the PCB and wooden cabinet
14. Active Filter Trainer Kit using Op amp
Second Order Low Pass and High Pass Filter circuits
Second order Band Pass Filter circuits
Audio frequency source – 20 Hz to 20 KHz with variable voltage and frequency
Legend printed on the PCB and wooden cabinet
15. Frequency Division Multiplexing and Demultiplexing Trainer Kit
2 nos. of variable frequency sources as messages
2 nos. of AM Modulation with 2 different carrier frequencies
Frequency division multiplexing
2 nos. of filter and AM demodulating circuits to separate 2 message signals
16. Delta Modulation Trainer Kit
Sampling Clock input – variable frequency
Message input - variable frequency and amplitude
Delta Modulation output
Legend printed on the PCB and wooden cabinet
Advanced Communication Engineering Lab Trainer Kits
1. PSK (BPSK) Modulation / Demodulation Trainer Kit
Binary PSK Modulator circuit and Demodulator circuit
20 Hz to 1KHz sinusoidal Wien Bridge Oscillator as carrier frequency
Carrier divide by 2 or 4 (sync) Data Generator
BPSK Modulator circuit using inverting amplifier
PLL based Demodulator and low pass filter circuit
Legend printed on the PCB and wooden cabinet
2. ASK Transmitter / Receiver Trainer Kit
Modulating 1 KHz Square wave Signal Generator with amplitude control
Sine wave 100 KHz Carrier Frequency Generator with variable dc bias
ASK Modulator using XR 2206
Demodulator using Low Pass Filter
Legend printed on the PCB and wooden cabinet
3. FSK Transmitter / Receiver Trainer Kit
8 bit serial Data generator using DIP switch
2 sine wave frequencies 1100 Hz and 1300Hz FSK frequencies
FSK transmitter using IC 4052
FSK Receiver using PLL with centre frequency 1200Hz and low pass filter
Legend printed on the PCB and wooden cabinet
4. TDM Multiplexing and Demultiplexing Kit
Sine, Square, Triangle, Saw tooth signals for multiplexing
TDM Multiplexing circuit using 4 channel analog Multiplexer IC 4052
Multiplexing and De multiplexing channel control circuit using counter
Demultiplexing circuit using IC 4052
Legend printed on the PCB and wooden cabinet
5. LED and Photo Diode Characteristics
Provision to do LED VI Characteristics for different colour LEDS
To do Photo Diode VI Characteristics
Legend printed in the PCB and wooden casing
6. Setting up a Fiber Optic Link - Analog Link
Built in Audio Oscillator for generating analog input
Fiber Optic Link using LED Transmitter Photo Diode Receiver
One Meter Fiber Cable to connect transmitter and receiver
Provision to give external analog signal from function generator
Amplifier in the Receiver stage
7. Setting up a Fiber Optic Link – Digital Link
Digital data pattern input through DIP Switch
Parallel to serial conversion
Single LED at the digital input
Serial digital data transmission through fiber using LED Transmitter
Digital data reception from receiver using Photo Transistor
Single LED at the output
8. Measuring the bending loss and Propagation loss in fiber optics
Monochromatic Source
2 different length fiber optic cables
Bending arrangement in different pattern
Fiber Optics Receiver
Provision to measure input signal and output signals to calculate the loss
9. Manchester Encoder and Decoder Kit
Clock Generator
Serial data Generator
Manchester Encoder
Manchester Decoder
Test points to measure the signals at different stages
10. Measuring the Numerical aperture of Optical Fiber
Provision to measure the Numeric aperture of fiber optic cable
Monochromatic Source
One Meter Fiber Cable
Numerical aperture experiment arrangement
11. Video Amplifier Circuit
Transistor based circuits, Bandwidth 3 MHz
Provision to connect external signal
Legend printed in the PCB and wooden casing
12. Sample and Hold Circuit
Sine wave input signal generation
4KHz, 8KHz and 16KHz Sampling frequency generation
Sample and Hold Circuit using Analog Switch
Legend printed in the PCB and wooden casing
13. Setting up a Fiber Optic Link (Analog and Digital)
Audio input variable frequency
Fiber Optic Link using LED Transmitter and Photo Diode Receiver
Speaker output
Digital data pattern input through DIP Switch
Fiber Optic Link using LED Transmitter and Photo Transistor Receiver
Digital data output in single LED
14. Voice link Fiber optics trainer with 2 Telephone handset using PCM
2 telephone hand sets
Voice digitization using PCM encoding
Transmission using fiber cable
Reception using fiber optic sensor
PCM decoding at the receiver
Audio output to telephone handset
Logic diagram printed in the PCB
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