5EC3 TELECOMMUNICATION ENGINEERING |
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| Units | Contents of the subjects |
| TRANSMISSION LINE: -Types of transmission lines, general transmission line equation, line constant, equivalent circuits, infinite line, and reflection on a line, SWR of line with different type of terminations. Distortion less and dissipation less lines, Coaxial cables, Transmission lines at audio and radio frequencies, Losses in transmission line,. Characteristics of quarter wave, half wave and lines of other lengths, | |
TRANSMISSION LINE APPLICATIONS:- Smith chart and its application. Transmission line applications, Impedance matching Network. Single & double Stub matching. Measurement of parameters of transmission line, measurement of attenuation, insertion loss, reflection coefficient and standing wave ratio. |
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| ATTENUATORS & FILTERS: -Elements of telephone transmission networks, symmetrical and Asymmetrical two port networks. Different Attenuators, p-section & Tsection attenuators, stub matching, Transmission equalizers Filters, constant K-section, Ladder type, p-section, T-section filter, m-derived filter sections, Lattics filter section. | |
| TELEPHONE TRANSMISSION:-Telephone set, Touch tone dial types, two wire/ four wire transmission, Echo suppressors & cancellors, cross talk. Multi-channel systems: Frequency division & time division multiplexing. | |
| AUTOMATIC TELEPHONY & TELEGRAPHY:-Trunking concepts, Grade of service, Traffic definitions, Introduction to switching networks, classification of switching systems. Principle of Electronic Exchange, EPABX and SPC Digital telephone Exchange, Numberig Plan, Fascimile services. |
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