Communication Electronics N6 — Memo

August 2019 — N6 — Communication Electronics

N6 2019 Nated Engineering

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Q1— Section header —

1.1.2

1.2L = 4..f 43,142600510 9,548 26,522 nF (2\ m = 0,436 60,83

1.3Input

1.3pass filter (2

1.4Shunt C = m.C m = 0,6 ShuntC 3010 0,6 50 nF (2\ C = .Z.f

2.1No, the a ttenuator frequency is not sensitive because n attenuator only consists of resistive components which are not frequency sensitive. (3\

2.220 log N N = anti log anti log 3,981 (2\

2.4For 200 ohm N = 1,333 dB = 20 log N = 20 log 1,333 2,5 (2\

3.1(8\ ZN1 ZN1 &

3.2tune out reactive components. measure power along a transmission line. match an unbalanced device to balanced device. determine

3.3The stub is a short piece of wire which is short circuited across the transmission line (4\

3.4R/SVG 1,25

3.4.2SWR/SVG 1,5 (2 (2\ [18]18

4.1.110 log S/N S/N anti log antilog 31,623

4.1.210 log S/N S/N anti log antilog 7,5

4.24.K.T.F.R R = En 4.K.T.F 1810 41,38102983010 = 656,551 (3\

4.3.1The random motion of atoms and molecules in all types of material (2\

4.410 log F anti log anti log 2,755

4.4(F 297(1,886 10 (1\ [16]16

5.1(12\ $ 11

Q6— Section header —

6.1.1= Pd.A 1,21012 14,410 (1\

6.1.2A = .4 .G .4.A 310 12010 1243,142 2,5 24,131

6.2.1It is a device that will convert an electro magnetic quantity into a corresponding electrical current.

6.2.2It is a device that will convert electrical current into a corresponding electric magnetic quantity.

6.2.3

6.3Angle modulation is defined as a modulation whereby the instantaneous angle of the carrier wave is varied which leads to two forms of modulation known as frequency modulation and phase modulation. (2\

Topics Identified

Business Plan

Mark Allocation

Sections17 + 18 + 18 + 16 + 18 + 13 = 100 marks

Key Information

Contact Number0 12010 1243

Paper information

TitleMemo

SubjectCommunication Electronics

LevelN6

Document typeNated Engineering

Year2019

MonthAugust

Pages12

Downloads2

Examination context

Decade2010s

Years ago7y

SeasonWinter (SH)

Start dayThursday

Exam periodAugust 2019

Days since exam2,628

About Communication Electronics examination preparation

This TVET examination resource can be used as part of a structured revision programme. Past papers are most useful when learners attempt questions independently, work within a realistic time limit, and review their answers afterwards.

How to use this resource for revision

A TVET past examination paper is most useful when it is treated as an active revision exercise. Try the questions yourself before checking the corresponding memorandum. Where you make an error, identify the reason — was it a knowledge gap, a calculation mistake, an interpretation issue, or an examination technique problem?

For stronger examination practice, complete the paper without unnecessary interruptions and keep track of the questions that take the most time. Afterwards, review the memorandum and separate knowledge gaps from mistakes caused by interpretation, calculation, structure, or examination technique.

understanding question requirements

applying subject knowledge

working under time constraints

checking answers

identifying revision priorities

A practical revision approach

Start by completing the resource without looking at the memorandum. Review incorrect and incomplete answers afterwards and make a short revision list based on the areas that caused difficulty.

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