ITM 301 Lecture Notes - Carrier Wave, Baseband, Demodulation

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 301
• Professor: Farid Shirazi

Document Summary

Physical: analog signal: is in form of a wave signal (frequency). Hz = 1 frequency per second: digital signal: converts analog signal into digital (bits), adc analog to digital converter (microphone), dac digital to analog converter (speaker). File = byte format, data transactions = bit format: baseband vs. broadband, baseband = one type of signal, broadband = sends/receive multiple different signals at a time. Tv cable (rg6): modulation: embedding data signal into a carrier signal. (e. g. power signal). De-modulation: is the process of separating data signal from the carrier signal. Cpu assigns time slots to apps (fixed). Generates a sense of multitasking: wave division multiplex(wdm) fiber optic, dense wave division multiplex (up to 120 diff. signals). Technology: types of cables: 10-10mb/s, base=baseband, utp = unshielded twisted pair (office), stp = Shielded twisted pair (industry), 10 base t = cat 3,5. 100 base t = cat 5, 1000 base t = cat 5e, Thinnet 10 base 2 (i eee) connections ws.