1. welcome TO
A Company Selling Technology and not just a Product

2. Digital communication
A Company Selling Technology and not just a Product

3. What is Digital Communication?
Data transmission, digital transmission, or digital communications 
is the physical transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibers,wireless communication channels, 
storage media and computer buses. The data are represented as an electromagnetic signal, such as an electrical voltage, radio-wave, microwave, or infrared signal.
A Company Selling Technology and not just a Product

4. Products offered by Akademika
DCL-01 : Analog Signal Sampling And Reconstruction Kit
DCL-02 : PAM Time Division Multiplexing / Demultiplexing Kit
DCL-03 : Pulse Code Modulation Kit
DCL-04 : Pulse Code Demodulation Kit
DCL-05 : Data Conditioning And Reconditioning Kit
DCL-06 : ASK / PSK / FSK Modulation And Demodulation Kit
DCL-07 : Delta / Sigma Delta And Adaptive Delta Modulation Demodulation Kit
DCL-08 : Pulse Amplitude / Pulse Width / Pulse Position
Modulation / Demodulation Kit
A Company Selling Technology and not just a Product

5. DCL-01
“DCL-01: Analog Signal Sampling And Reconstruction Kit” is an introductory trainer kit to understand the principles of Analog Signal Sampling and Reconstruction.
This unit provides the user sine wave of two different frequencies (1 KHz and 2 KHz), whose amplitude can be
varied from 0V to 5V by using the pots P1 and P2 respectively.
All onboard signals are Phase-Locked, to enable the learner to observe a stationary signal on an oscilloscope.
A Company Selling Technology and not just a Product

6. DCL-01 : Analog Signal Sampling and Reconstruction Kit
A Company Selling Technology and not just a Product

7. DCL-02
“DCL-02: TDM Pulse Amplitude Modulation / Demodulation Kit” provides facilities for experimentation in the area of Time Division Multiplexing and Pulse Amplitude Modulation.
An onboard Function Generator provides four synchronized amplitude variable sine waves: 250Hz, 500Hz, 1 KHz, 2 KHz, and an amplitude variable DC level for generation of synchronization pulses. The 32 KHz-sampling clock and 8 KHz channel identification signal are also generated onboard.
On each Receiver channel, a 4th order Low Pass Butterworth Filter is provided with cut-off frequencies of 3.4 kHz, to obtain reconstructed signals from the de-multiplexed and demodulated signals.
A Company Selling Technology and not just a Product

8. DCL-02 : PAM Time Division Multiplexing / Demultiplexing Kit
A Company Selling Technology and not just a Product

9. DCL-03 and DCL-04
“DCL-03” and “DCL-04” initiates the user to understand the fundamentals of Pulse Code Modulation Techniques.
The various principles of Pulse Code Modulation, such as Sampling, Multiplexing, Quantizing and Encoding, can be studied with these trainer kits.
The trainer also illustrates the use of parity bit for single bit error detection and Hamming Code for single bit error detection and correction.
Frame Synchronization using a pseudo random bit sequence (PRBS) and bit Synchronization using phase locked loops are also illustrated in these kits.
A Company Selling Technology and not just a Product

10. DCL-03 : Pulse Code Modulation Kit
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11. DCL-04 : Pulse Code Demodulation Kit
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12. DCL-05
DCL-05 initiates the user to the various Data Conditioning and Reconditioning Techniques, normally adopted in practice.
The System illustrates the use of the following data formats:
a) Non Return to Zero - Level (NRZ-L)
b) Non Return to Zero - Mark (NRZ-M)
c) Non Return to Zero - Space (NRZ-S)
d) Unipolar Return to Zero (URZ)
e) Biphase - Level (Biphase-L)
f) Biphase - Mark (Biphase-M)
g) Biphase - Space (Biphase-S)
h) Alternate Mark Inversion (AMI)
i) Unipolar To Bipolar
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13. The trainer comes with an onboard data simulator, which
generates the NRZ-L pattern depending on positions of 8-bit
switch and the reference clock (266 KHz), which enables the
trainers to work in a stand-alone mode.
Interconnection facilities:
Sockets and patch chords are provided for on board connections.
Test Points :
All relevant test points are brought-out for observations.
Observations are carried out on an oscilloscope.
  Power Supply
-12V, +5V, GND.
A Company Selling Technology and not just a Product

14. DCL-05 : Data Conditioning And Reconditioning Kit
A Company Selling Technology and not just a Product

15. DCL-06
The trainer comes with an onboard data simulator, which generates the NRZ-L pattern depending on positions of 8-bit switch and the reference clock (256 KHz), which enables the trainers to work in a stand-alone mode.
Three carrier modulation options are available on the kit.
a) Amplitude Shift Keying (ASK)
b) Frequency Shift Keying (FSK)
c) Phase Shift Keying (PSK).
A Company Selling Technology and not just a Product

16. DCL-06 : ASK / PSK / FSK Modulation and Demodulation Kit
A Company Selling Technology and not just a Product

17. DCL-07
“DCL-07: Delta / Sigma / Adaptive Delta Modulation And Demodulation Kit” is a compact single board unit in wooden casing and it provides hands on experimentation in the area of Delta Modulation/Demodulation, Adaptive Delta Modulation/Demodulation, Sigma Delta Modulation/ Demodulation, CVSD, Compressor and Expander and also Voice Modulation an/Demodulation techniques.
This unit contains onboard function generator, which provides Synchronized amplitude variable sine waves of 250Hz, 500Hz, 1 KHz and 2KHz and DC signal with variable amplitude. The unit has provision to accept external sine wave. Selectable clock frequency for modulation makes this kit ideal for experimentation.
A Company Selling Technology and not just a Product

18. DCL-07 : ASK / PSK / FSK Modulation and Demodulation Kit
A Company Selling Technology and not just a Product

19. DCL-08
“DCL-08 : PAM / PWM / PPM Modulation trainer kit” provides experimentation in the area of Pulse Modulation/ Demodulation Techniques such as Pulse Amplitude Modulation (PAM), Pulse Width Modulation (PWM) and Pulse Position Modulation (PPM).
An onboard sine wave generator provides two synchronized amplitude variable sine waves of 500Hz and 1 KHz and one synchronized amplitude (0-2vpp) & Frequency (1-30Hz) variable sine wave. The unit has provision to accept external sine wave as input. An onboard clock generator circuit provides clock frequency of 8 KHz and 16 KHz for sampling circuit.
A Company Selling Technology and not just a Product

20. DCL-08
Pulse Amplitude / Pulse Width / Pulse Position Modulation / Demodulation Kit
A Company Selling Technology and not just a Product

21. AKADEMIKA LAB SOLUTIONS
EL-107, MIDC,T.T.C. Electronic Zone, Mahape, Navi Mumbai
Tel. : /82/83 Fax :
Website :
A Company Selling Technology and not just a Product