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Advanced Communications Lab


Code division multiple access (CDMA). GSM system, mobile station and base station interaction. GPS system. Spread spectrum technique, modulation and demodulation, direct sequence spread spectrum DSSS, frequency hopping spread spectrum FHSS. Concepts of satellite communication, satellite communication link, changing uplink and downlink frequency, audio- video satellite link between transmitter and receiver. Concepts of optical communication, optical power measurements, characteristics of LED and photodiodes, determination of the acceptance angle and numerical aperture of optical fibers, losses measurement, OTDR measurement of fiber length, attenuation and splice losses.