aggregate for passing the test. The application and licensing procedures are done online through the SaralSanchar portal, short for Simplified Application For Registration And Licenses, which is a web portal for license management under the Department of Telecommunications. Radio Theory and Practice The Radio theory and practice syllabus includes eight subtopics: The first subtopic is the elementary theory of electricity that covers topics on conductors, resistors, Ohm's Law, power, energy, electromagnets, inductance, capacitance, types of capacitors and inductors, series and parallel connections for radio circuits. The second topic is the elementary theory of alternating currents. Portions include sinusoidal alternating quantities such as peak values, instantaneous values, RMS average values, phase; electrical resonance, and quality factor for radio circuits. The syllabus then moves on to semiconductors, specifically the construction and operation of valves, also known as vacuum tubes. Included in this portion of the syllabus are thermionic emissions with their characteristic curves, diodes, triodes and multi-electrode valves; and the use of valves as rectifiers, oscillators, amplifiers, detectors and frequency changers, stabilisation and smoothing. Radio receivers is the fourth topic that covers the principles and operation of TRF receivers and Superheterodyne receivers, CW reception; with receiver characteristics such as sensitivity, selectivity and fidelity; Adjacent-channel interference and image interference; AGC and squelch; and signal-to-noise ratio (S/R). Similarly, the next topic on transmitters covers the principles and operation of low power transmitters; oscillators such as the Colpitts oscillator, Hartley oscillator, crystal oscillators, and stability of oscillators. The last three topics deal with radio propagation, aerials, and frequency measurement. Covered are topic such as wavelength, frequency, nature and propagation of radio waves; ground and sky waves; skip distance; and fading. Common types of transmitting and receiving aerials such as Yagi antennas, and radiation patterns, measurement of frequency and use of simple frequency meters conclude the topic. Radio Regulations Knowledge of the Indian Wireless Telegraph Rules and the Indian Wireless Telegraphs (Amateur Service) Rules are essential and always tested. The syllabus also includes international radio regulations related to the operation of amateur stations with emphasis on provisions of radio regulation nomenclature of the frequency and wavelength, frequency allocation to amateur radio service, measures to prevent harmful interference, standard frequency and time signals services across the world, identification of stations, distress and urgency transmissions, amateur stations, phonetic alphabets, and figure code are the other topics included in the portion. Also included in the syllabus are Q codes