The fourth science discussion meeting took place on 4th of April 2013 and was lead by Omair Taibah on the topic of Telecommunication from the field of Electric Engineering.

The discussion involved the basics of telecommunications, covering analog vs. digital, redundancy, randomness and coding, types of signals, basic format of telecom systems, bandwidth, power and time of transmission, channel noise and distortion, time Domain and frequency domain (Fourier series and transform intro), ideal filters (low pass, high pass and band pass), along with several case studies: Amplitude modulation (DSB-SC), how is it performed, basic problems, ideal situations, and applications. Angle Modulations: How to make frequency modulation and phase modulation. Analog to digital converters (sampling, quantisation and aliasing). Line coding: (on-off, polar, bipolar and manchester).