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ASOC Examination Syllabus

Naveen

SYLLABUS FOR AMATEUR RADIO STATION OPERATOR CERTIFICATE (ASOC) LICENCE EXAMINATION IN INDIA



PART - 1: WRITTEN TEST



SECTION - A : RADIO THEORY AND PRACTICE.


ELEMENTARY ELECTRICITY AND MAGNETISM :
Elementary theory of electricity: Conductors and insulators, units. Ohm's Law, resistance, capacitance, inductance in series and parallel, conductance, power and energy, permanent magnets and electromagnets and their use in radio work, self and mutual inductance: types of inductors used in receiving and transmitting circuit.

ELEMENTARY THEORY OF ALTERNATING CURRENTS:
Sinusoidal alternating currents-peak, instantaneous, RMS, average values, phase, resistance, Impedance. Circuits containing resistance, inductance, capacitance-power factor resonance in series and parallel circuits, coupled circuits, transformers for audio and radio frequencies.

THERMIONIC VALVES:
Construction of valves thermionic emission, characteristic curves, diodes, triodes and multielectrode valves: use of valves as rectifier, oscillator, amplifier, detectors and frequency changers, Power packs, stabilisation and smoothing elementary theory and construction of semiconductor devices, diodes and transistors.

RADIO RECEIVERS:
Principles and operation of Tuned radio Frequency and superheterodyne receivers, CW reception: Receiver characteristics. Sensitivity, selectivity, fidelity: adjacent channel and image interference: AVC and squelch circuit Signal to noise ratio, TRANSMITTER:principles and operation of low power transmitter, crystal oscillator ,stability of oscillators. RADIO PROPAGATION: Wave Length, frequency, nature and propagation of radio waves: ground and sky waves, skip distance, fading. AERIALS: Common types of transmitting and receiving aerials.FREQUENCY MEASUREMENT: Measurement of frequency and use of simple frequency meters.

( NOTE : For Advanced Grade separate question paper will be given which includes topics on Satellite communication along with above said syllabus and all the 8 questions have to be answered.)

SECTION - B : RULES AND REGULATION.

(a) . Knowledge of (i) The indian wireless Telegraph Rules 1973 & (ii). The indian wireless Telegraph Rules 1978.
(b) . Knowledge of international Radio Regulations as relating to the operationa of amateur station with particular emphasis on the Following.
1. Designation of Emission
2. Nomenclature of the Frequency & Wavelength
3. Measurement against Interference
4. Frequency allocation to amateur Service
5. Interference and Tests
6. Identification of stations
7. Distress and Urgency transmissions
8. Amateur Staion
9. Phonetic Alphabet and figure code

(c) Standard frequency and time signals services in the world .
(d) The following Q codes:
QRA,QRG,QRH,QRI,QRK,QRL,QRM,QRN,QRQ,QRS,QRT, QRU,QRV,QRW,QRX,QRZ,QSA,QSB,QSLQSQ,QSU,QSV,
QSW,QSX,QSY,QSZ,QTC,QTH,QTR and QUM
(e) The following abbrevations:
AA,AB,AR,AC,C,CFM,CL,CQ,DE,L,NIL,OK,R,TU,VA,WA,WB

(All the above details of syllabus are common for both Grade I and Grade II)

Important:

  • For Grade II and Restricted Grades, candidates are required to answer three (3) out of eight (8) questions each from Section-A and Section-B respectively.
  • For Grade I, candidates are required to answer five (5) out of eight (8) questions each from Section-A and Section-B respectively.
  • For Advanced Grade, candidates are required to answer all the questions from Section-A and Section-B.
  • For all the grades the duration of examination is 3 Hours.

(Note: The above pattern may change, please read the instructions on the question paper in the examination.)

PS. If you are a B.E/B.Tech graduate in Electronics and Communication (E&C only) from any government approved institution, you are excempted from the Section A of the written examination.

PART - II MORSE CODE

 

FOR GRADE-II

(a) SECTION-1: Morse reception (Speed 5 Words Per Minute)
The test piece will be consist of plain language passage of 125 letters. Five letters counting as one word. Candidates are required to receive for 5 consecutive minutes at a speed of 5 words per minute international morse code signals from an audio oscillator keyed either manually or automatically. A short practice piece may be sent at the prescribed speed before the start of the actual test. The test may be written in ink or pencil but must be legible. Bad handwriting and over-wirting will render a candidate liable to disqualification. More than 5 errors will disqualify a candidate in a stretch of 60 characters.

(b) SECTION-2 : Morse Transmission (Speed 5 Words Per Minute)
The test piece will consists of a plain language passage of 125 letters, 5 letters counting as one word.
Candidates are required to send on an ordinary key for 6 consecutive minutes at the minimum speed of 5 words per minute. A short practice piece may be allowed before the actual test. Candidate will not be allowed more than one attempt in the test. Efforts should be made to correct all errors. However more than 5 errors will disqualify a candidate. The accuracy of signalling, correct formation of characters and the correctness of spacing shall be taken into account.
NOTE: A candidate is required to pass both in Part 1 and Part II. In the case of candidates qualifying in part I only the licence shall be restricted to radio telephone operations only (Restricted Grade).

FOR GRADE I AND ADVANCED GRADE

Morse sending and receiving speed is 12 WPM*. The test piece will consist of plain language passage of 300 characters which may comprise of alphabets, numbers, and punctuation (Full stop, comma, semi-colon, break sign, hyphen and question mark) marks. The average words shall contain 5 characters and each numbers and punctuation will be counted as 2 characters. Other conditions are same as in grade II. A candidate is require to pass in Part I(Written) and Part II (Morse) simultaneously in order to qualify for these grades.

* There is an amendment for reducing the speed of morse code for Grade I and advanced grades, I will update this information soon.

Reference Books:

The Syllabus is covered in the Books :

1. "ABC OF AMATEUR RADIO" , By Rajesh Verma-VU2RVM, EFY Publications
2. "HAM RADIO" , By A. Ponnuswamy & P Parthiban,
Available with : Karthik Publishers,
16, Pachaipatti Main Road, Salem Town, Salem-636 001
Tamil Nadu

 

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