Communication Trainers

Product Details:

Code - 40510
Transmission Line Trainer
Experimental Training Board has been designed specifically to study the various parameters in Transmission Line. Practical experience on this board carries great educative value for Science and Engineering Students.
Object:

To measure the following :

• Measuring the characteristics of a line
• Measuring the attenuation of a line
• Measuring the Input Impedance of the line
• Phase displacement between the current & voltage at input of line
• Frequency characteristic of the line
• Study of Stationary Waves
• Signal phase shift along the line
• Fault localization within the line
• Line under pulsed condition.

Features:

The board consists of the following built-in parts :

• 4 Nos. Coaxial Cables 25 meters each, total Transmission line 100 metres.
• Two potentiometers for impedance matching.
• Sine/Square wave Signal Generator having frequency 40KHz to 4MHz, in two bands 40KHz to 400KHz & 400KHz to 4MHz.
• A SPDT switch to select either sine or square wave.
• A SPDT switch to select frequency either high (400KHz to 4MHz) or low (40KHz to 400KHz).
• A potentiometer to vary frequency high (400KHz to 4MHz) or low (40KHz to 400KHz).
• A potentiometer to vary amplitude.
• BNC connector to connect input.
• Adequate no. of other electronic components

Additional Information:

• Item Code: 40510
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40619
BPSK / DEPSK / DPSK Modulation / Demodulation Trainer Order Code-40619 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

FEATURES:
Onboard synchronized 500 KHz Sine-wave generator.
Differential Encoding type Data Format.
On-board crystal controlled Pulse Generator.
On board 8 bit Data Simulator.
Block Description screen printed on PCB.
In-Built Power Supply

LIST OF EXPERIMENTS:
Principles of advance digital modulation techniques.
Differential Encoding of Data.
Binary Phase Shift Keying Modulation / Demodulation technique.
Differential Phase Shift Keying Modulation / Demodulation
technique.
Differentially Encoded Phase Shift Keying Modulation /
Demodulation technique.
Effect of Switch Faults.

Additional Information:

• Item Code: 40619
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40519
Frequency Modulation & Demodulation Trainer
FM Transmitter and Receiver Trainer has been designed with a view to provide practical and experimental knowledge of Frequency Modulation / Demodulation technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of size 300x400mm.
1. Object:
To Study Theory of Frequency Modulation & Demodulation:
01. Frequency Modulation via varactor / reactance Modulation.
02. Frequency Demodulation via Detuned Resonant / Ratio / Qudrature / Foster - Seeley / Phase locked loop detector.
03. Separate VCO circuit to demonstrate FM waveform.

2. Feature:
The board consists of the following built-in parts:
01. POWER SUPPLY : ± 12DC IC Regulated power supply.
02. FM Modulating signal generator : Sine wave
Frequency Range : 300 Hz to 3.4 Khz
Amplitude Range : 0 to 5 Vpp.
03. Modulator Type : Varactor modulator (With carrier frequency adjustment)
: Reactance Modulator (With carrier frequency adjustment)
04. Demodulator : Detuned resonant detector.
: Quadrature detector
: Foster - Seeley Detector
: Ratio Detector
: Phase locked loop DetectorOther

Apparatus Required:
Cathode Ray Oscilloscope 20MHz.
Patch Cords

Additional Information:

• Item Code: 40519
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40505  
Pulse Position Modulation & Demodulation (PPM)  
Experimental Training Board has been designed specifically for the study of Pulse Position Modulation and Demodulation. Using this training board one can know the specialized techniques of Pulse Position Modulation and Demodulation.Object:
01. To modulate a pulse train (carrier) with a sinusoidal signal and to obtain a Pulse Position Modulated signal
02. To demodulate a Pulse Position Modulated signal to recover the modulating signalFeatures:
The board consists of the following built in parts :
01. ± 6V D.C. at 100mA, IC regulated Power Supply internally connected
02. Pulse Train (Carrier) Generator based on timer IC
03. 50 Hz A.C. sinusoidal modulating signal obtained from stepped down transformer
04. Pulse Position Modulating circuit based on IC
05. Demodulating circuitry based on an IC and transistors
06. Adequate no. of other electronic components
07. Mains ON/OFF switch, Fuse and Jewel lightOther Apparatus Required:
* Cathode Ray Oscilloscope 20MHz

Additional Information:

• Item Code: 40505
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40501
Amplitude Modulation and Demodulation Experimental Training Board has been designed specifically for the study of Amplitude Modulation and Demodulation. This training board is based on latest solid state circuits for generating modulating signal, Amplitude Modulation and Demodulation.Object:
To study the process of Amplitude Modulation & Demodulation
Experiments:
01. To observe the carrier waveforms on C.R.O
02. To modulate carrier with audio signal and to observe waveforms on C.R.O
03. To measure percentage modulation of the amplitude modulated waveform
04. To demodulate amplitude modulated waveform and observe on C.R.O 
Features:
The board consists of the following built-in parts :
01. +9V D.C. At 100mA, IC Regulated Power Supply internally connected
02. Carrier generator circuit which generates carrier wave
03. Modulating circuit based on two transistors
04. Demodulating circuit
05. Adequate no. of other electronic components 
Other Apparatus Required:
Decade Audio Frequency Generator Order Code - 16902
Cathode Ray Oscilloscope 20MHz

Additional Information:

• Item Code: 40501
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40502
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.
Object:
01. To observe the effect of D.C. voltage on frequency of carrier waveform
02. To frequency modulate the carrier with Audio signal, observe F.M. waveform on C.R.O., and measure its modulation index
03. To demodulate the F.M. singal and observe the output on C.R.O.
04. To plot the characteristics curve of the slope detector demodulating circuit
Features:
The board consists of the following built in parts:
01. ± 12V D.C. at 100 mA, IC Regulated Power Supply
02. Carrier generator circuit which generates the carrier signal
03. Audio frequency modulating signal
04. Variable D.C. is provided to see the frequency deviation in carrier frequency
05. Frequency Modulation circuit with buffer stage at the output

Additional Information:

• Item Code: 40502
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

OrderCode - 40503
Pulse Amplitude Modulation and Demodulation (PAM)
Experimental Training Board has been designed specifically for the study of Pulse Amplitude Modulation & Demodulation. Using this training board one can know the specialized techniques of Pulse Amplitude Modulation and Demodulation.
Object:
01. To demonstrate sampling of a sine wave audio signal thereby converting it into Pulse Amplitude Modulated Signal (PAM).
02. To demonstrate demodulation of PAM signal thereby recovering the sine wave audio signal.
03. To demonstrate the effect of sampling-rate on the distortion in recovered sine wave audio signal.
Features:
The board consists of the following built-in parts:
01. ±9V D.C. at 100mA, IC regulated Power Supply internally connected
02. Variable frequency sampling pulse generator
03. Sine wave audio frequency modulating signal generator
04. PAM Modulator circuit based on an operational amplifier
05. PAM Demodulator circuit based on a point contact diode and an operational amplifier
Other Apparatus Required:
* Cathode Ray Oscilloscope 20MHz

Additional Information:

• Item Code: 40503
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40504  
Pulse Width Modulation & Demodulation (PWM)
Experimental Training Board has been designed to study on the modern techniques of Pulse Width Modulation / Demodulation. Using this training board one can know the specialized techniques of Pulse Width Modulation and Demodulation. 
Object:
01. To modulate a pulse carrier with sinusoidal signal to obtain a Pulse Width Modulated signal
02. To demodulate the Pulse Width Modulated signal to obtain the modulating signal 
Features:
The board consists of the following built-in parts:
01. ± 6V D.C. at 100mA, IC regulated Power Supply internally connected
02. Pulse Train (Carrier) Generator based on timer IC
03. 50 Hz A.C. sinusoidal modulating signal obtained from stepped down transformer
04. Pulse Width Modulator based on timer
05. Pulse Width Demodulator based on operational amplifier 
Other Apparatus Required:
* Cathode Ray Oscilloscope 20MHz

Additional Information:

• Item Code: 40504
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40507
Phase Shift Keying Modulation and Demodulation
Experimental Training Board has been designed specifically for the study the Phase shift keying modulation and Demodulation. The board is absolutely self contained and requires only CRO. 
Object:
To study the generation of the Phase Shift Keyed output and also to demodulate the PSK output. 
Features:
The board consists of the following built-in parts :
01. ± 5V D.C. at 100mA IC regulated power supply internally connected
02. Op-Amp IC.
03. Decade counter IC.
04. Quad Op-Amp. IC
05. Multiplexer IC.
06. Quad, 2-input EX-OR gate IC
07. Mains ON/OFF switch, fuse and jewel light.
Other Appartus Required:
* Cathode Ray Oscilloscope 20MHz.

Additional Information:

• Item Code: 40507
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40508  
Amplitude Shift Key Modulation And 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. 
Object:
To study the generation of the Amplitude Shift Key output and also to demodulate the ASK output.
Features:
The board consists of the following built-in parts :
01. ± 12V D.C. at 50mA, IC regulated power supply internally connected.
02. ± 5V D.C. at 50mA, IC regulated power supply internally connected.
03. Clock Generator 200Hz to 15KHz.
04. 8 Bit Word Generator.
05. Logic Selection switches for high / low (9Nos).
06. Binary Counter (Divided by 16 counter).
07. Carrier Signal Generator 4 to 10KHz.
08. Amplitude Shift Key (ASK) Modulator.
09. Amplitude Shift Key (ASK) Demodulator.
10. Mains ON/OFF switch, fuse and jewel light.Other Apparatus Required:
Cathode Ray Oscilloscope 20MHz.

Additional Information:

• Item Code: 40508
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40509
Delta Modulation and Demodulation
Experimental Training Board has been designed specifically for study of delta 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.
Object:
To study delta modulation and demodulation.
Features:
The board consists of the following built-in parts :
01. 5V D.C. at 100mA IC regulated power supply internally connected.
02. ±12V D.C. at 100mA IC regulated power supply internally connected.
03. Quad Op-Amp IC.
04. Two Up/Down counter IC.
05. Digital to Analog convertor DAC IC.

Additional Information:

• Item Code: 40509
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40512  
Pulse Code Modulation & Demodulation Trainer
Experimental Training Board has been designed specifically to study Pulse Code Modulation & Demodulation. In the basic PCM Modulator the base band analog signal is covered into 8 bit digital format using an ADC. The sampling rate is set at 2.5 KHz. The 8 bit parallel data from ADC is converted into serial bit stream at 33 kbps.The PCM Demodulator receives the serial data, converts it into 8 bit parallel format. The Analog to digital converter transforms the 8 bit parallel data into analog level. Thus the output of DAC is a stepped approximation of input signal. 
Object:
To study Pulse Code Modulation & Demodulation.
Features:
The board consists of the following built-in parts :
01. 5V D.C. at 100mA IC regulated power supply internally connected.
02. ± 15V D.C. at 100mA IC regulated power supply internally connected.
03. + 5V D.C. to -9V Variable D.C. output.
04. Built in TTL Clock Generator 33 KHz.
05. Modulating Signal Generator 15Hz to 300Hz.
06. PCM Encoder.
07. PCM Decoder.
08. Data display with LED’s
09. Adequate no. of other electronic components.
10. Mains ON/OFF switch, fuse and jewel light. 
Other Apparatus Required:
* Cathode Ray Oscilloscope 20MHz.

Additional Information:

• Item Code: 40512
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Code - 40514
Differential Pulse Code Modulation and Demodulation Trainer
Experimental Training Board has been designed specifically to study Differential Pulse Code Modulation & Demodulation. In the basic DPCM Modulator the base band analog signal is covered into 8 bit digital format using an ADC. The sampling rate is set at 2.5 Khz.
The DPCM Demodulator receives the serial data, converts it into 8 bit parallel format. The Digital to Analog converter transforms the 8 bit parallel data into analog level. Thus the output of DAC is a stepped approximation of input signal. A low pass filter is used to recover the analog signal.
Object:
To study Differential Pulse Code Modulation & Demodulation.
Features:
The board consists of the following built-in parts :
01. 5V D.C. at 100mA IC regulated power supply internally connected.
02. ± 12V D.C. at 100mA IC regulated power supply internally connected.
03. - 5V D.C. to + 5V D.C. Variable D.C. output.
04. Audio Frequency Oscillator 10Hz to 100Hz for modulation.
05. DPCM Modulator (DPCM ENCODER).

Additional Information:

• Item Code: 40514
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40516  
DSB / SSB-SC Amplitude Modulation & Demodulation Trainer  
DSB/SSB-SC Amplitude Modulation & Demodulation Trainer has been designed with a view to provide practical and experimental knowledge of Amplitude Modulation / Demodulation technique as practically implemented in Analog Communication system on a SINGLE P.C.B. of size 300x400mm.
Object:

To Study of

• Amplitude Modulation & Demodulation.
• Generate AM signal by modulation with audio signal generator
• Measure modulation index of A.M. signal
• Demodulate AM signal using diode detector(envelope detector)
• Generate voice signal AM modulation and demodulation using Mic.
• Observe the effect of DC signal input on AM output
• Demodulate AM signal by square law detection

Feature:
The board consists of the following built-in parts:
01. IC REGULATED POWER SUPPLY : ± 15 DC and +5V DC at 100mA.
02. AF Modulation signal generator : Sine wave
Frequency Range : 300 Hz to 3.4 KHz
Amplitude : 0 to 5 Vpp.
03. RF carrier signal oscillator.
Frequency Range : 100 KHz to 1 MHz.
Amplitude : 0 to 10 Vpp.
04. Local Oscillator : 400 KHz to 500 KHz.
05. Band Pass Filter : 452 KHz to 458 KHz.

Additional Information:

• Item Code: 40516
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

This trainer has been designed with a view to provide practical and experimental knowledge of DSB / SSB AM Transmitter technique as practically implemented in Analog Communication system on a signal P.C.B. of size 300x400mm.

Object:

• Study of carrier frequency generation.
• Study of DSB / SSB AM Generation & Transmission.
• Study of Transmitter tuned circuits.

Code - 40517

More Details In Attached PDF...

Additional Information:

• Item Code: 40517
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40518 
DSB / SSB AM Receiver Trainer

DSB / SSB AM Receiver Trainer this trainer has been designed with a view to provide practical and experimental knowledge of DSB / SSB AM Receiver technique as practically implemented in Analog Communication system on a signal P.C.B. of size 300x400mm
Object:

• Study of DSB & SSB AM reception & deletion by diode / product detectors.
• Study of AGC.
• Study of receiver tuned circuits.
• Study of Sensitivity, Selectivity & Fidelity of Receiver.

Experiments:

• Study of double sideband AM reception using envelope detector via cable.
• Study of double sideband AM reception using envelope detector via Antenna.
• Study of sensitivity, selectivity, of a radio receiver.
• Study of single sideband AM reception using product detector.
• Study of Image frequencies.
• Voice transmission with DSB AM transmission / reception.uency generation.

Additional Information:

• Item Code: 40518
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40520
AM Transmitter Trainer

Features :

• Audio Oscillator : With adjustable Amplitude & Frequency (300 Hz - 3.4 KHz)
• Audio Output : Amplifier with speaker
• Modulators : Balanced Modulator with Band pass Filter (1 MHz) - 2 Nos. Balanced Modulator (455 KHz) - 1 No. Ceramic Bandpass Filter - 1 No.

Additional Information:

• Item Code: 40520
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Model - 40521 

DSB/SSB AM Receiver Trainer 

Features :

• Construction : Superhetrodyne
• Freq. Range : 980 KHz to 2060 KHz
• Intermediate Frequency : 455 KHz

Code - 40521

Additional Information:

• Item Code: 40521
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40526
FDM Trainer

Features :
FDM trainer demonstrates FDM technique. Two different modulated inputs can be transmitted as a single communication line using FDM The trainer is self contained and all the inputs are on board.

Additional Information:

• Item Code: 40526
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40548

GSM Trainer

The GSM Trainer is a modem or mobile equipment for transmission of voice and data calls as well as SMS (Short Message Service) in GSM Network. To control the GSM modem there is an advanced set of AT commands according to GSM ETSI (European Telecommunications Standards Institute) 07.07 and 07.05 implemented. The GSM standard has established itself across continents. The trainer is well suited for studying AT commands by camping to real networks using SIM card.

Additional Information:

• Item Code: 40548
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40554

Data Communication Trainer

Data Communications and Networking are one of the fastest growing segments today. The major reason for this growth is the dramatic increase in Networked offices, PC based products and internet users. More Students are taking courses to learn about them.

Designed to assist students and practitioners to understand the various methods of exchange of data between two devices.

It is designed to be user friendly and it supports self learning through the flexibility of making the connections by the user itself. For proper understanding of various protocols in serial and parallel communication, various experiments can be performed. In depth knowledge of ports and its functional details can be studied with the use of the supporting software provided. Manuals and notes help the user to understand the major terminologies and theory related to Data Communication.

Additional Information:

• Item Code: 40554
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40555

Local Area Network (LAN) Trainer

Local Area Network (LAN) Trainer provides the understanding of all the fundamentals of networking. It helps the user to gain knowledge regarding all network layers, cable designing and building of complete network of computers. The user can understand and actually implement various topologies using different standards given by IEEE. Actual connections can be made in different topologies and data can be transferred. The user will understand the protocols, topologies used in networking, measurement of error rate, throughput and effect of errors on protocols. The versatile software provided with assist the user to observe the various effects and configurations on network along with the graphical representation.

Additional Information:

• Item Code: 40555
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40556

LAN Trainer

LAN trainer is a versatile desktop system that provides hands on experimentation & understanding of local area Networks. The field being diverse, this trainer has been designed with an aim to touch upon the various aspects of LAN's such as hardware & cabling, software configuration & protocols. The LAN trainer is supplemented by a set of 4 exhaustive manuals covering the various aspects of LAN's. The unique feature of this trainer is an onboard Hub & Cabling setup via jumpers so as to minimize the loss of expensive cable during training. OBJECT - Study of LAN (Local Area Network )

• Three sets of onboard cabling setup for Ethernet.
• On board parallel port direct cable connection setup.
• On board serial port direct cable connection setup.
• A 10 mbps hub is provided onboard with the circuitry exposed.
• The power supply circuit for Hub is provided onboard.
• A separate Hub is also provides so to train students for multi Hub Networking.
• A set of 4 exhaustive manuals covering LAN hardware & cabling, software configurations protocols, terms & definitions.
• The trainer comes with a cable fabrication kit to provide hands on experience on real cabling.

Additional Information:

• Item Code: 40556
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40515
Differential Phase Shift Keying Modulation and Demodulation
Experimental Training Board has been designed specifically to study Differential Phase Shift Keying (DPSK) Modulation and Demodulation.Practical experience on this board carries great educative value for Science and Engineering Students. The unit is absolutely self contained except CRO.
Object:To study Differential Phase Shift Keying Modulation and Demodulation.
Features:
The board consists of the following built-in parts :
01. ± 5V D.C. at 100mA IC regulated Power Supply internally connected.
02. IC-1 for generating DPSK (Differential Phase Shift Keying) signal.
03. IC-5 for generating Carrier signals.
04. IC-2A for generating Bit Clock.
05. IC-6 for generating different Datas.
06. IC-2 B & C, IC-3 C & D, IC-4 D-FF2 and Transistor 2, 3 & 4 are used as Demodulator.
07. Adequate no. of other electronic components.
08. Mains ON/OFF switch, fuse and jewel light.
Other Apparatus Required:
* Dual Trace Cathode Ray Oscilloscope 20MHz

Additional Information:

• Item Code: 40515
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40522
Frequency Modulation / Demodulation Trainer Technical Specifications Audio Oscillator : With adjustable Amplitude &
Frequency (300 Hz - 3.4 KHz)
FM Modulator : 2 Nos.
1) Reactance Modulator (with carrier Frequency adjustment)
2) Varactor Modulator (with carrier Frequency adjustment)
Mixer / Amplifier : 1 No. (With Gain adjustment) Allows
FM input signal to be amplitude
modulated by a noise input prior to
demodulation.
Transmitter output Freq : 455 KHz
FM Demodulator : 5 Nos.
1) Detuned Resonant Detector
2) Quadrature Detector
3) Foster -Seeley Detector
4) Ratio - Detector
5) Phase Locked Loop Detector

Additional Information:

• Item Code: 40522
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40524
Noise Audio - Amplifier Trainer
Technical Specifications
Noise Generator : Output Amplifier Adjustable from 100 mVpp
Signal Attenuation Network : Adjustable from 0 to the maximum of input value.
Signal : +Noise adder stage
Audio Amplifier with Loud speaker : 8W, 0.25 W
Dimensions (mm.) : W 255 × D 155 × H 80
Power Supply : +12 V (From AD-01)

Additional Information:

• Item Code: 40524
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40528
TDM Pulse Amplitude Modulation/ Demodulation Trainer
The trainer provides all necessary inputs and connections for students to study Pulse Amplitude Modulation/ Demodulation techniques. Time Division Multiplexing & Demultiplexing of Signals and Signal Reconstruction.
Technical Specifications
Crystal Frequency : 8 MHz
Analog Input Channels : 4
Multiplexing : Time Division Multiplexing
Modulation : Pulse Amplitude Modulation
On Board Analog Signal : 500 Hz, 1 KHz, 2 KHz and 4 KHz
(Sine wave synchronized to sampling pulse)
Adjustable amplitude and separate variable DC level)
Sampling Rate : Four sampling signals
4 KHz / 8 KHz / 10 KHz / 20 KHz per channel (switch selectable)
Sampling Pulse : With duty cycle variable from 0-90% in decade steps.
Clock Regeneration at Receiver : Using PLL
Test points : 50
Interconnections : 2 mm Sockets
Power Supply : 220 V ±10%, 50 Hz / 60 Hz on request
Power Consumption : 4 VA (approx.)
Dimensions (mm) : W 340 × D 240 × H 105
Weight : 1.3 Kg (approx.)

Additional Information:

• Item Code: 40528
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40529
TDM Pulse Code Modulation/ Transmitter Trainer
The trainer provides all necessary inputs and connection for students to study Pulse Code Modulation Transmission techniques. A communication link can be established by using PCM receiver.Technical SpecificationsCrystal Frequency : 16 MHz
On Board Analog Signal : 2 KHz, 4 KHz (sine wave synchronized to sampling pulse Adjustable amplitude and separate variable
DC level)
Input Channels : Two
Multiplexing : Time Division Multiplexing
Modulation : Pulse Code Modulation
Sync Signal : Pseudo random sync code generator
Error Check Code : Off - Odd - Even - Hamming
Operating Mode : Fast : 320 KHz / channel (approx.)
Slow : 1.9 Hz / channel (approx.)
PC -PC communication : Using 2 channels via RS232
Port : 9 Pin D type connector - 2Nos.
Baud Rate : Selectable from 300 to 2400
Test Points : 50
Interconnections : 2 mm Sockets
Power Supply : 220 V ±10%, 50 Hz / 60 Hz on request
Power Consumption : 4 VA (approx.)

Additional Information:

• Item Code: 40529
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40530
TDM Pulse Code Modulation Receiver TrainerThe trainer provides all necessary inputs and connection for students to study decoding and demultiplexing of data transmitted by PCM transmitter. On-Board PLL provides regeneration of Clock. Synchronization between transmitter and receiver is provided by Pseudo random code.Technical SpecificationsInput Channel : Time Division Multiplexed Serial Input
Demodulation : Pulse code Demodulation
Clock Regeneration : By phase Locked loop
Operating Speeds : Fast - 320 KHz/Channel, Slow 1.9 Hz / Channel
Error Detection (Single bit) : Off-Odd- Even parity & Hamming code
Error Correction : Hamming code
PC- PC communication : using 2 channels via RS232
Port : 9 pin D type connector - 2 Nos.
Baud rate : Selectable from 300 to 2400
Test Points : 50
Interconnections : 2 mm sockets
Power Supply : 220 V ±10%, 50Hz / 60 Hz on request
Power Consumption : 4 VA (approx.)

Additional Information:

• Item Code: 40530
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40531
Delta, Adaptive Delta and Delta Sigma
Modulation / Demodulation Trainer
In digital communication specially operating at low frequencies or speech communications a saving in Bandwidth can be resulted using Delta Modulation and its associated techniques because this requires single encoding of sample. This Trainer covers Delta, Adaptive Delta and Delta sigma Modulation and Demodulation.

Additional Information:

• Item Code: 40531
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40536
PAM-PPM-PWM Modulation And Demodulation Trainer PAM-PPM-PWM are the basic Pulse Modulation techniques.
The trainer provides complete set up to the students for performing experiments on these techniques. They can study
Sampling, Pulse Modulation, Demodulation & Signal
reconstruction process. Separate circuits are provided for each
technique. The Operating Manual provides technology details
and procedure to perform the experiments.

Additional Information:

• Item Code: 40536
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40539
Differential Pulse Code Modulation (DPCM) Trainer
DPCM Trainer is a manifestation of our increasing efforts to present the modern technology in a best way to the people who want to unfold the mysteries behind the ever increasing communication super highway. To present it in a best way the trainer incorporates the practical operating frequencies for sampling, audio processing and data processing which are commonly used in our public telephone networks.

Additional Information:

• Item Code: 40539
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40541
MSK Modulation / Demodulation Trainer
MSK Modulation / Demodulation Trainer is designed to assist students to understand the basic working principal of Minimum Shift keying technique. As the name suggests, MSK results in a modulation scheme which has smooth phase variations in contrast to other phase modulation schemes where the modulated signal contains abrupt phase changes. The immediate advantage of such a scheme is the reduction in modulated
signal bandwidth. MSK Modulation / Demodulation comprises of following major blocks :
- Digital data generator
- Sine and Cosine wave generator for wave shaping
- Sine and Cosine carrier generator
- Clock signal generator
- MSK modulator and Demodulator sections with complete signal flow.

Additional Information:

• Item Code: 40541
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40543
CDMA Trainer
CDMA trainer provides a basic understanding of the concepts behind CDMA and various concepts needed to be considered in case of CDMA system design such as pseudo random bit signal generation,the spreading and despreading of data sequence, Direct Sequence Spread Spectrum (DSSS) generation and decoding, digital modulation and demodulation for BPSK and PWM.

Additional Information:

• Item Code: 40543
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40630
ASK, FSK, BPSK, Dbpsk Modulator and Demodulator
Order Code - 40630 are compact and user friendly learning platforms to provide a modern, portable, comprehensive and practical way to learn Technology. Each 40630 provided with detailed Multimedia learning material which covers basic theory, step by step procedure to conduct the experiment and other useful information.

Additional Information:

• Item Code: 40630
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40612
TDM Pulse Amplitude Modulation/Demodulation Trainer
Order Code-40612 is a Digital Communication Trainer System to under stand various digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board for Teaching/Training. This Kits provides with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40612
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40614
TDM Pulse Code Demodulation Trainer
Order Code-40614 is a Digital Communication Trainer System to under stand various digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board for Teaching/Training. This Kits provides with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40614
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40615
Delta / Adaptive Delta Modulation / Demodulation Trainer
Order Code-40615 is a Digital Communication Trainer System to under stand various digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board for Teaching/Training. This Kits provides with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40615
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40616
Data Conditioning Trainer
Order Code- 40616 is a Digital Communication Trainer System to under stand various digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board for Teaching/Training. This Kits provides with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40616
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40617
Data Reconditioning Trainer Order Code- 40617 is a Digital Communication Trainer System to under stand various digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board for Teaching/Training. This Kits provides with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40617
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40618
FDM Trainer
SPECIFICATIONS:
l Sine Wave Generator
- Two Nos. of Sine Wave generators Provided.
- Independent Switch selection of 10Hz, 100 Hz, 1 KHz, &
10 KHz.
- Provision for Amplitude adjustments provided.
- Provision for Frequency adjustments provided
Carrier Generator
- Fixed Sine Wave Generators of 100 KHz and 200 Khz.
On-board features
- Two Nos. of DSB-SC Modulator.
- Summing Amplifier provided.
- Two Nos. of Balanced De-modulator.
- Audio input & output amplifier.
- Two 2nd order Butterworth Low pass filter with cut off
frequency of 10 Khz.
- Block Description Screen printed on glassy epoxy PCB

Additional Information:

• Item Code: 40618
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40620
QPSK / DQPSK Modulation Trainer  
Order Code-40620 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40620
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40621
QPSK / DQPSK Demodulation Trainer
Order Code-40621 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40621
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40622
Base Band Transmission/Reception Trainer
Order Code-40622 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40622
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40625
DPCM / ADPCM Modulation / Demodulation Trainer
Order Code-40625 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.

Additional Information:

• Item Code: 40625
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40626

MSK Modulation / Demodulation Trainer

SPECIFICATIONS:

l Carrier Generator

- On Board synchronized RF carrier signal generators with frequencies of 120 KHz, 200 Khz

Data Generator

- 8 bit Digital Data generator to generate any binary input word.

- Selection of Data using 8-way DIP Switch.

Display

- One LED indicator to indicate Power input.

On-board Circuits

- On board two Balanced Modulator Circuit.

- Demodulator PLL Detector Circuit.

- Squarer Circuit

Power Supply

- Fixed DC power supply : + 5 V/500mA

- Fixed DC power supply : +/-12 V/500mA

Additional Information:

• Item Code: 40626
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40627
CRC Code / Decode Trainer
SPECIFICATIONS:
l Pulse Generator
- One Switch to provide Low to High Pulse.
- One Switch to provide High to Low Pulse.
Data Generator
- 8 bit Digital Data generator to generate any binary input word.
- Selection of Data using 8-way DIP Switch.
Display
- One LED indicator to indicate Power input.
On-board Circuits
- CRC Encoder/ Transmitter Circuit for 16 bits CRC Polynomials
- CRC Decoder/ Receiver Circuit for 16 bits CRC Polynomials.
- Data Receiver Circuit for 8 Data bits.
Power Supply
- Fixed DC power supply : + 5 V/500mA

Additional Information:

• Item Code: 40627
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40623
QAM / DQAM Modulation Trainer Order Code-40623 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.FEATURES:
On-board Sine-wave generator.
On-board Four Carrier Sine waves of 500Khz.
On board three nos. of 8-bit NRZ-L. Data Simulator.
Clock frequency of 250 Hz.
Dat Format (Coding) is NRZ-L, Tribit encoded and
Differential Encoded I & Q bits.
In-Built Power Supply.

Additional Information:

• Item Code: 40623
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40624
QAM/DQAM Demodulation Trainer Order Code-40624 is an Advance Digital Communication Trainer System that helps one under stand various Digital Modulation and Demodulation Techniques. Various functional block diagrams are provided on-board as an aid for Teaching/Training. These Kits are provided with various Test Points to visualize the signals on Oscilloscopes.
FEATURES:
Receiver Clock generated by PLL method.
Demodulation is done using PLL and Envelop Detector Method.
Switch faults are provided to study its effects on circuits.
Block Description screen printed on PCB.
In-Built Power Supply.SPECIFICATIONS:
l Receiver Clock
- Receiver clock generated using PLL method
Data Format (Decoding)
- Non Return to Zero-Level (NRZ-L)
- Tribit Decoded data (I ,Q & C)
- Differential Decoded I & Q Bits.
Carrier Demodulation Techniques
- Quadrature Amplitude Demodulation
- Differentially Quadrature Amplitude Demodulation

Additional Information:

• Item Code: 40624
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40513 Analog Signal Sampling & Reconstruction Trainer  
Experimental Training Board has been designed specifically to study of Sampling Theorem using Pulse Amplitude Modulation and Demodulation. The training board is complete in all respect except C.R.O.Practical experience on this set up carries great educative value for Science and Engineering Students.
Object:

To study Sampling Theorem using Pulse Amplitude Modulation and Demodulation.

1. To generate PAM signal by modulating with audio signal by natural sampling.
2. To generate PAM signal by modulating with audio signal by Flat-Top sampling.
3. To generate PAM signal by modulating with audio signal by Sample / Hold circuit.
4. To demodulate using Low Pass Filter to reconstruct input(sine wave).

The board consists of following built in parts :

• +-15V D.C. at 100mA, IC Regulated Power Supply.
• +5V D.C. at 100mA, IC Regulated Power Supply.
• A.F. signal generator for modulating signal.
• Sampling clock generator to provide sampling clock and gate pulse.
• Modulator circuit for Flat-top natural and S/H circuit.
• Demodulator circuit to reconstruct input (sinewave).

Additional Information:

• Item Code: 40513
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40651
VLSI Based Digital Communication Training System
SPECIFICATIONS: Clock and signal generation section Sine wave
Fixed frequency : 250Hz, 500Hz, 1 KHz, 2 Khz
Variable frequency : 1Hz ~ 30Hz, 0 ~ 2 Vpp
Sampling clock
Frequency : 2 KHz, 4 KHz, 8 KHz, 16 KHz,32
KHz, 64 KHz, 128 Khz
Duty cycle : 10 ~ 90% Selectable in steps of
10%
DC signal : 0 ~ 5 V
Transmitter clock frequency :240 KHz fast modes
Transmitter frame frequency :8 Khz
Carrier sine waves : 500 KHz (00), 1MHz (00), 1MHz (1800)
Data pattern : 8-bit variable NRZ-L pattern

Additional Information:

• Item Code: 40651
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40523  
FM Communication Trainer  
Technical Specifications:
Generator :
Waveforms : Sine
Amplitude : Adjustable from 0 - 4 Vpp
Frequency : Adjustable from 0.1 to 1 KHz & 1 to 10 KHz
VC0 1:
Output signal : Sine
Frequency : 400 KHz to 1500 KHz
Amplitude : Adjustable from 0-2 VPP
Inputs : Modulating signal

Product Details:

Order Code - 40527
Sampling & Reconstruction Trainer The trainer provides all necessary inputs and connection for students to study signal Sampling and Reconstruction Techniques.
Technical Specifications Crystal Frequency : 8 MHz
Sampling Frequency : 2, 5, 8,10, 20 & 40 KHz (switch selectable)
On-board Generator : Synchronized 1 KHz sine wave (5 V ) pp
Duty cycle : 0 - 90% in Decade steps (Switch Selectable)
Low -Pass Filters : Butterworth 2nd & 4th order
Cut-off frequency - 3.4 KHz each
Test Point : 50
Interconnections : 2 mm sockets
Power Supply : 220 V ±10%, 50 / 60 Hz on request
Power Consumption : 3 VA (approx.)

Additional Information:

• Item Code: 40527
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Order Code - 40506  
Frequency Shift Keying Modulation And Demodulation
Experimental Training Board has been designed specifically for the study of frequency shift keying modulation and Demodulation. The board is absolutely self contained and requires only CRO. 
Object:
To study the generation of the Frequency Shift Keyed output and also to demodulate the FSK output.
Features: 
The board consists of the following built-in parts :
01. ± 12V D.C. at 20mA IC regulated power supply internally connected
02. 5V D.C. at 100mA IC regulated power supply internally connected
03. Quad Op-amp IC
04. Decade counter IC
05. Timer IC
06. 4-Bit Binary counter IC
07. Quad 2-input Nand gate IC
08. Two potentiometers for varying the FSK input and demodulator adjust 
Other Apparatus Required:
Cathode Ray Oscilloscope 20MHz.

Additional Information:

• Item Code: 40506
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box

Product Details:

Code - 40511
Digital Time Division Multiplexing & Demultiplexing
Experimental Training Board has been designed specifically to study Digital time division multiplexing & demultiplexing. 8 channel Digital Multiplexer and Demultiplexer are provided on the Trainer. A rolling Address Generator scans the 8 channels sequentially. Data Generator with 8 different outputs act as signal sources for the 8 channels.
Practical experience on this board carries great educative value for Science and Engineering Students.

Object:
To study Digital Time Division Multiplexing & Demultiplexing.

Features:
The board consists of the following built-in parts :

1. +- 5V D.C. at 100mA IC regulated power supply internally connected.
2. 8 : 1 Multiplexer.
3. 1 : 8 Demultiplexer.
4. 8 bit Data Generator.
5. Clock & Address Generator.

Additional Information:

• Item Code: 40511
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: Delhi
• Production Capacity: 100
• Delivery Time: 4-5 Week
• Packaging Details: Corrugated Box