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Bredhurst Receiving and Transmitting Society

ILC title

Written assessment


Revision style break down of question topics. It is understood that 27 right are needed (or looking at it another way 18 wrong and you still pass !!!).


Licence Conditions

Q1. Nature of Amateur Radio - be able to recognise all UK callsigns and which level there are foundation Intermediate Advanced.

Q2. Operators of your station - and you operating a station of an Advanced licence holder - Messages what can be said and not said including User service's messages

Q3. Location and identification - use the callsign on the Validation Document in CQ calls and start and finish of Qso's and every 15min if long over - use of voice / CW every 30 min in other modes - meaning of main station address /P and /M

Q4. Use of location to identify when /P - use of secondary locators - not to operate from aircraft or vessel except on inland waters - that an Intermediate licence does not give and permission to operate outside UK

Q5. Unattended operation and required notice - Log all the details as to how it is to be kept and what is required of entries and backed etc and keeping the log for 6 months after last entry

Q6. Apparatus - not to cause interference - when told to must reduce transmissions power -carry out test "from time to time"

Q7. Licence - the role of Ofcom - possession of a current validation document - renewal date - revocation -

Q8 & Q9. These are based upon the schedule to the licence document which will be in the exam room for you to look at.


Technical Basics

Q10. Units and abbreviations multiples and sub-multiples - what is current - difference between conductor and insulator - materials for conductors and insulators and where water fits in - P = V x I - V = I x R - Series and parallel resistors and numeric values of 2 or 3 resistors in series or parallel ( parallel equal values only).

Q11. Cells and batteries - primary and secondary - what is a cell and what is a battery

Q12. Capacitors - what they are - how they store a charge - effect with DC and AC - proper connection of some capacitors

Inductors - what it is - what happens when a current passes through it - ability to store magnetic field - the effect of different size of inductor

Q13. Tuned circuits - What it is - how it works in relation to resonant frequency -accept of current and rejection of current

Q14. Simple transformer - the need for AC and does not work with DC - Step down and step up

Q15. Diodes and Transistors - diode conduction - Diode used to produce DC from AC - recognise wave forms AC and rectified pulsed DC - What is an LED and how it works - What is a varicap and how it works -

Q16. Transistor - used as an amplifier and a switch and oscillator - controlled by the base current - be able to recognize the crystal oscillator and the variable frequency oscillator circuit diagrams

Q17. Circuit symbols - Measurements - use of multimeter and important of polarity with analogue meter - how to measure volts - how to measure current - how to work out the power in a circuit - the RF power out is less than DC input due to inefficiency.


Transmitters and receivers

Q18. Transmitters and Receivers

Q19. Modulation and sidebands

Q20. Transmitter interference

Q21. Filters and their use - CW wave shape bandwidth etc

Q22. Block diagram of receivers

Q23. Intermediate frequency

Q24. Detectors


Feeder and antenna

Q25. coaxial and twin feeders - simple dB calculations losses and power to antenna - feeder characteristics impedances

Q26. Antenna impedance - Standing waves - ATU

Q27. Antenna polar diagrams - gain / ERP simple calculation dB - electrical and magnetic field - Yagi construction - Antenna polarisation of VHF and UHF and also for HF - Dummy load use and construction


Propagation

Q28. Layer structure - ionisation levels and time changes - sun spots

Q29. use of "F" layer - meaning of ground wave , skip distance and skip zone - ducting - sporadic E

Q30. VHF & UHF normally pass through Ionosphere but can propagate through the troposphere - effect of snow ice and rain on UHF - manipulate the formula v = f x


EMC

Q31. An understanding of transmission and absorption of RF - domestic environment - New equipment to meet immunity standards.

Q32. Good radio housekeeping -

Q33. Interference sources and simple remedies.

Q34. Mast head pre-amps and TV down lead problems - use of ferrite rings -use of dummy load in tests

Q35. Social issues of interference


Operating practices and procedures

Q36. Q codes - abbreviations - RST

Q37. Relative operational advantages of CW SSB & FM - digital modes - use of personal computer

Q38. Good operating practice - location of callsigns and prefixes - qsl cards common country callsign prefixes - contests

Q39 Satellites operation


Safety

Q40. Soldering

Q41. Use of hand tools

Q42. Working at heights - ladder ratio and safety - tool belt

Q43. Electricity - shock - fuse calculation - RCD use - working on equipment with large capacity capacitors - RF and body tissue guidance level reference - wave guides and high gain antennas.


Construction

Q44. Component recognition - soldering basics

Q45. Resistor colour code identification 1 ohm to 9meg ohm



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