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Electronic Communications Systems

Electronic Communications Systems. CTAB Major Strength Specify, design, construct, troubleshoot, and characterize communications systems. Electronic Communications Systems. Ian Benjamin – Instructor Telecom Intro – term 4 Telecom Apps – term 5 Wireless/Radio Fundamentals – term 5

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Electronic Communications Systems

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  1. Electronic Communications Systems CTAB Major Strength Specify, design, construct, troubleshoot, and characterize communications systems.

  2. Electronic Communications Systems Ian Benjamin – Instructor Telecom Intro – term 4 Telecom Apps – term 5 Wireless/Radio Fundamentals – term 5 Wireless/ Radio Systems – term 6

  3. Electronic Communications Systems Rejean Barriault - Instructor Fiber Optic Communications Term 5 Don Michaelsen - Instructor Data Communications Term 5 Advanced Datacomm Term 6

  4. Ian Benjamin RF / Wireless Experience: Nav Canada 23 yrs (Aircraft Radio Navigation / Communication / Telecom) Radio Amateur / Radio Repair 30+ yrs Maintained VHF-FM repeater 10 yrs

  5. Intro to Telecom – term 4 Course Outcome To apply the principles involved in configuring a communications system.

  6. Intro to Telecom (90 hr) Major Content Time / Frequency Domain Signals, FDM Fourier Transform, FFT, Spectrum Analysis High frequency properties & construction Linear Modulation – AM / SSB / FM /PM Modulator / Demod / Mixer / Amp. Transmitter / Receiver / Noise Oscillators and Synthesizers – PLL, DDS

  7. Intro to Telecom L ab Equipment Spectrum Analyzer, FFT scope Freq. Selective Voltmeter Agilent RF Generator Function Generator Modulation Lab Volt Telecom Modules

  8. Telecom Applications –term 5 Course Outcome Use basic test equipment to analyze the performance of telephony and CATV transmission systems, both analog and digital.

  9. Telecom Applications (45 hrs) Major Content Sampling, Aliasing, Quantization Digital Modulation – PCM, FSK, PSK, QAM Telephony – Local Loop, CO, Mux, ADSL Digital Signal Hierarchy, SONET Cable TV – Analog & Digital Video, Headend, Distribution, DOCSIS Modem, Return System Convergence of Services and Carriers.

  10. What is Radio/Wireless?

  11. What is Radio / Wireless? AM / FM / TV Broadcasting Land Mobile Cellular Phone / Data Satellite / Microwave / Radar Wireless LAN / MAN / WAN

  12. What is Radio Frequency (RF)? One definition is any frequency above 50kHz Systems listed on previous slide obvious applications Less obvious, much more prevalent Digital and Wired data – ADSL, LAN, USB Switch mode power supply radiation Starting to see RF behavior in Power Systems like motor drives – standing waves on “60Hz” wiring

  13. Wireless Fundamentals – term 5 Primary Course Outcome To solve fundamental theoretical problems and use test equipment to perform fundamental practical measurements of radio systems involving antennas, transmission lines, and EM waves. Secondary Outcome To enable students who work in non-radio related workplace to apply RF principles in their work.

  14. Wireless Fundamentals (135 hrs) Major Content areas Applied EM Physics Intro Transmission Lines Propagation Antennas Microwave Real World Radio

  15. WirelessFundamentals Transmission Lines Why does wire act as transmission line? Pulse and Sine response Standing wave Ratio Matching and Smith Charts Measurements – Wattmeter, Slotted Line, Time domain reflectometer (TDR) Line fault location using TDR (major non-radio application) New Content – Anritsu Site Master FDR test set.

  16. WirelessFundamentals Propagation Free space, line of sight, plane earth, ionospheric EIRP Received Signal Strength Prediction RF Channel Characteristics Multipath Fading and Bandwidth Effects

  17. WirelessFundamentals Antennas Basic definitions Characteristics Radiation patterns, pattern formation Adaptive Antennas Selection

  18. WirelessFundamentals Microwaves Waveguides Passive components Active Components Radar

  19. WirelessFundamentals Real World Radio Transmitter Spectral Purity Receiver Spurious Response Intermodulation , Desensitization Duplexers and Multicouplers EMI / EMC (useful in non-radio workplace)

  20. WirelessFundamentals QUESTIONS?

  21. Wireless / Radio Systems – term 6 Course Outcome Use fundamental system concepts, design tradeoffs, and block diagram architecture to plan, manage and troubleshoot wireless and radio systems at an entry level.

  22. Wireless/Radio Systems (45 Hours) Major Content Multiplexing/Multiple Access DSP overview 802.11 Wireless LAN / Bridge Terrestrial Microwave Satellites

  23. Wireless / Radio Systems Multiplexing / Multiple access TDMA – sync / async Channel Model – Delay Spread FDMA / OFDMA CDMA Spatial Multiple Access - MIMO, 802.11n Collisions, Hidden/Visible Nodes

  24. Wireless / Radio Systems Digital Signal Processing (DSP) Functional Concepts, no Math or Programming Enabling technology Signal Generation / Detection Adaptive Filter / Equalization Voice Compression – Vocoder ADSL, OFDMA examples

  25. Wireless / Radio Systems Terrestrial Microwave Applications Digital vs Analog Repeaters Modulation

  26. Wireless / Radio Systems Satellites Orbits – low, medium, geostationary System characteristics Examples – Bent Pipe Transponder, Direct Broadcast TV, VSAT GPS Architecture, Signals, Applications Differential GPS, WAAS

  27. Wireless / Radio Systems 802.11 Wireless LAN / Bridge System Architecture / Protocols Technologist level actions: Antenna application and selection RF channel / Coverage zones overlap and self interference RTS/CTS, fragmentation thresholds and performance tuning

  28. Wireless / Radio Systems QUESTIONS?

  29. EQUIPMENT DONATIONS Defective components, assemblies, Antennas Test Equipment

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