5EC3-TELECOMMUNICATION ENGINEERING |
Units: I-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,
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Units: II-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. |
Units: III-ATTENUATORS & FILTERS: |
Elements of telephone transmission networks, symmetrical and
Asymmetrical two port networks. Different Attenuators, π-section & T-section attenuators, stub matching,
Transmission equalizers Filters, constant K-section, Ladder type, π-section, T-section filter, m-derived
filter sections, Lattics filter section.
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Units: IV-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.
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Units: V-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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