Wireless Communication

Introduction to Spread-Spectrum Systems: Direct-sequence Spread−Spectrum for BPSK, QPSK, MSK, and Frequency-Hop, Spread Spectrum: Coherent and Non-coherent, Hybrid Direct−Sequence/ Frequency−Hop Spread Spectrum, Register Sequences for Spread- Spectrum Systems: Definitions, Finite field Arithmetic, Sequence Generator fundamentals, State –Machine Representation of Shift Register Generators, Maximal length – Sequences, Gold codes, orthogonal codes, Walsh codes.

Mobile Phone Fundamentals

Basic Electricity, Fundamental of Electronics, Basic telephone contents, Introduction to Mobile communication, Future trends in communication, Nature of electricity, types of supply system, Ohm’s law, law of resistance, circuits, parallels, Magnet & magnetism, Principle of switching in telephone, Basic intercom block diagram & circuits, Telephone components, like crystal, IC`, Testing of components, Basic phone circuits & its fault finding, cause remedies, Cordless telephone system, Types of communication, Key player is GSM-cell & sector terminology.

Basic Electronics

Semiconductor Diodes and Applications, Bipolar Junction Transistors, Introduction to Operational Amplifiers, Digital Electronics, Flip-Flops, Communication Systems, Electronic Devices and Circuits, Bipolar junction transistors and its biasing, Special purpose diodes and transistors,  AC Analysis of BJT circuits and small signal amplifier, Field effect transistors (FET) and its biasing, Digital Circuits, Circuit Theory & Networks, Electrical & Electronic Measurement, Data Structure & Algorithms, Materials Science, Mathematics, Numerical Methods & Programming.

Mobile Phone Servicing

Cell Phone Repairs and Service, Software and Hardware Components, Diagnosing and Repairing Mobile Phone Faults, Potential risks associated with mobile phone repair, Knowledge on Mobile Based Apps and updating the mobile software’s, Can identify different types of mobile cell phones & their components, Rules of Mobile Communication. Tools and instruments used in mobile phone repairing, Basic Circuit Board/ Motherboard fault checking, Assembling & disassembling of different mobile phones, Soldering & DE soldering Components Using Different Soldering Tools.

Software Repair

Introduction to mobile phones, Generations of mobile phones, FHSS networks, GSM, Spread spectrum, CDMA, TDMA & Basic electronics components, Handset Specific operating systems, Handset features & applications, working principle of mobile handset & Components used in mobile handsets, Tools & equipment used for repairing & maintenance of mobile handsets, types of power supply & batteries, boosting a battery, Troubleshooting basics, Network problems, Power failure (dead), Mobile phone hardware troubleshooting (water damage, hanging, charging & keypad problems), Handsets assembly& disassembly, Soldering & disordering &SMD rework station.