Pulse amplitude modulation and amplitude and demodulation (Model: DC-01)

Objectives:

To construct pulse amplitude modulation generator and to observe the Characteristics of single polarity pulse amplitude modulation.
To observe the demodulated waveform.

Specifications:

Built in fixed power supplies of +12V @250mA.
555 IC timer as a RF generator with 400 KHz fixed frequency.
The modulation is controlled with a CMOS sampling switch 4016 IC.BC 107 is used for demodulation in CE configuration.
The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.
All testing points are Provision with 2mm socket for proper connectivity.
Sets of 2mm patch cards and user manual is accompanied with this kit.

Optional Items required:

Dual trace CRO DC-30MHz.

Pulse width Modulation and Demodulation (Model: DC-02)

Objectives:

To construct a pulse width modulator. And to observe that the width of the pulses that altered although the amplitude of modulating frequency is varied.

Specifications:

Built in fixed power supplies of+5V, -5V, DC 0- 2V, -2V TL084 IC is used as AF generator with fixed frequency of 500Hz and variable amplitude.
TL084 IC used as modulator and Op-amp 555 IC , 4069 IC is used a demodulator.
The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines .
All testing points are Provision with 2mm socket for proper connectivity.
Two Set of 2mm patch cards and user manual is accompanied with this kit.

Optional Items required:

Dual trace CRO DC-30MHz.

Pulse position modulation & demodulation (Model: DC-03)

Objectives:

To construct a pulse position modulator.
To observe that the position of the pulses that altered although the amplitude of modulating frequency is varied.

Specifications:

Built in fixed power supplies of+5V, -5V, @250mA.
Control Signal Generated by TL084 IC fixed amplitude. TL084 IC is used as AF generator with fixed frequency of 500Hz and variable amplitude.
TL084 IC used as modulator and Op-amp 555 IC, 4069 IC is used for Conversion from PWM-PPM and Demodulation using filter circuit.
The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines .
All testing points are Provision with 2mm socket for proper connectivity.
Set of 2mm patch cards and user manual is accompanied with this kit.

Optional Items required:

Dual trace CRO DC-30MHz.

Verification of sampling theorem (Model: DC-04)

Objectives:

To construct and to verify the sampling for a signal.

Specifications:

Built in fixed power supplies of+12V, -12V @300mA.

Variable clock frequency 3-30 KHz (low) and 6-60 KHz (high) 4052 IC used for sampling and TL084 IC is used for reconstructing the signal.

Additional Op-amp and CMOS are provided for external use.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

Time division multiplexing and demultiplexing (Model: DC-05)

Objectives:

To construct time division multiplexing and demultiplexer.

Specifications:

This trainer consists two different modules namely Modulator and Demodulator with in two different frequency data signals are generated by using TL084IC.

Built in fixed power supply +5V, -5V @250mA.

Modulation technique using 4052 and TL084 control with local oscillator clock generator.

Demodulations are individually provided on board by using two no’s low pass filters.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

Pulse code Modulation and Demodulation (Model: DC-06)

Objectives:
To study pulse code modulation &demodulation.

Specifications:
This trainer consists two different modules namely Modulator and Demodulator with Built in fixed power supplies of +5V, -5V @500mA.

Variable AF generator 20Hz-150Hz.Clock generator with fixed frequency of 10 KHz, 64 KHz, 4 KHz etc.Data output with LED variations.

Variable DC Source -5V-+5V.sampled hold circuit using Op-amp TL084, A/D converter using 0808,shift register 74LS373 IC shift register to shift data using IC 74LS16674,74LS164IC,74LS374 IC(buffer),DAC 800 IC and an LPF are used in Demodulation.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Differential pulse code Modulation and Demodulation (Model: DC-07)

Objectives:
To study differential pulse code modulation &demodulation.

Specifications:
Modulation and demodulation separate kits with different clock pulse and filter circuits, built in supplies Voltages are +5V,-5V @300mA.

On board A/D and D/A converters IC 0808,for filter circuit TL084 IC, Local oscillator Variable AF generator 15Hz-30Hz, clock generator Variable DC voltage -5V to +5V.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Delta Modulation and Demodulation (Model: DC-08)

Objectives:
To observe the delta modulation and demodulation.

Specifications:
Built in fixed power supplies of +12V, -12v, -5V @500mA.

Modulation and Demodulation separate kits with different 555IC is clock generator.

TL084 IC is used as AF generator, Comparator 339 IC, Buffer and signal shaping using TL084 and gate, 74191 up down binary counters, D/A converter DAC 0808 IC are used in modulator circuit.

7400, 74193, DAC 0808 IC’s and a low pass filter circuit used in Demodulator.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Frequency shift keying Modulation &Demodulation (Model: DC-09)

Objectives:
To construct and observe Frequency Shift Keying modulation &demodulation.
Specifications:
Built in fixed power supplies of +12V, -12V, +5V, -5V. Logic source low and high input (0, 1). Data signal using IC LM 565, 4069 IC generator. Internal carrier signal and modulation using 2206 IC Demodulator and output filter circuit using LM 339,565 IC’s.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Phase shift keying Modulation & Demodulation (Model: DC-10)

Objectives:
To construct phase Shift Keying modulation &demodulation.

Specifications:
Built in fixed power supplies of +12V, -12V, +5V, -5V @500mA.TL084 IC is used as carrier generator and TL084, 4027, 4027 IC is used as data generator 1KHz, 2KHz,4KHz,, 4052 IC, TL084 IC are used in modulator circuit.

TL084, 4030, 4069 IC is used in demodulator circuit.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

Differential Phase shift Modulation and Demodulation (Model: DC-11)

Objectives:
To construct differential phase Shift Keying modulation &demodulation.

Specifications:
Built in fixed power supplies of +12V, -12V, +5V @500mA.

TL084 IC is used as carrier generator.7490 IC,4030 is used as data generator.4052 IC, TL084 IC are used in modulator .4070,4027 for encoding data signal shaping circuit, encoded data clock generator circuit is used in demodulator circuit, analog with synchronization clock with modulation Kit.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Amplitude shift keying Modulation & Demodulation (Model: DC-12)

Objectives:
To study amplitude Shift Keying modulation &demodulation.

Specifications:
Built in fixed power supplies of +12V, -12V, +5V @500mA. TL084 IC is used as carrier generator and LM565, 4069 IC is used as data generator.4052 IC, TL084 IC’s is used in modulator circuit.

TL084 IC and filter is used in demodulator circuit.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

Frequency Division Multiplexing &Demultiplexing (Model: DC-13)

Objectives:
To study frequency multiplexing and demultiplexing.

Specifications:
Built in DC power supplies of +15V, -15V, +5V, @500mA.

This trainer consist two AF generators at frequency range is 300Hz to 3.4 KHz with both amplitude and frequency variable.

Carrier generator frequency two different ranges at 16KHz,32KHz. This trainer consisting of two three modulator sections and three demodulator sections and RF Oscillator frequency range is 200KHz-500KHz.also three types of filter circuits i.e. LPF, BPF-1, BPF-2.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

PAM, PPM, PWM Modulation and Demodulation (Model: DC-14)

Objectives:
To study PAM ,PPM ,PWM Modulation and Demodulation.

Specifications:
Built in DC power supplies of +15V, -15V, +5V, @500mA.This trainer consist two AF generators at frequency range is 300Hz to 3.4 KHz with both amplitude and frequency variables, Carrier.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.

Optional items required:
Dual trace CRO DC-30MHz.

Quadrature Amplitude Modulation & Demodulation (QAM) (Model: DC-15)

Objectives:
To study Quadrature Amplitude Modulation & Demodulation.

Specifications:
Built in DC power supplies of +12V, -12V, @300mA.This trainer consist two In phase Quadrature phase carrier Sine wave generators at frequency range is 40KHz
Built in two AF generators at frequency range is 1.5khz and 3khz and amplitude @0-2V p-p
Circuit diagram for both Modulation andd demodulation are same pcb
The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines
All testing points are Provision with 2mm socket for proper connectivity
Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Digital Time division Multiplexing and Demultiplexing (DTDM -Model: DC-16)

Objectives:
To study Digital Time division Multiplexing and Demultiplexing technique .

Specifications:
Built in fixed power supplies of +5V, -5V @300mA.

Two Different data Sources with 200hz,400hz frequency.

Built in Variable Clock Generator.

Modulation and Demodulation separate kits with different clock generator.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.

Quadarature Phase shift keying modulation and Demodulation (Model: DC-17)

Objectives:
To study DQPSK Modulation and Demodulation Technique.

Specifications:
Built in fixed power supplies of +5V @300mA.

Built Carrier generator @100Khz at 0,90,180 ,270 degree phase and different bit data signal Generator.

Built in Variable Clock Generator.

Modulation and Demodulation circuits are on single PCb with Data ,clock ,phase generator Circuits.

The Circuit layout is designed on FR-4 type Glass Epoxy PCB with masked copper track lines.

All testing points are Provision with 2mm socket for proper connectivity.

Set of 2mm patch cards and user manual is accompanied with this kit.
Optional items required:
Dual trace CRO DC-30MHz.