Communication Electronics N6 — Document

April 2020 — N6 — Communication Electronics

N6 2020 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 5 pages 📝 21 items found 📚 1 topics

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Q1— Section header —

1.1Use the information in the given graph and design transmission line. Draw the completed network and insert all

1.3Design the terminating half sections for a low pass 3,75 kHz Draw the completed filter networks and insert all relevant component values. (7\ [19]19

2.1Draw and fully label each of the following balanced attenuator networks:

2.1.1[14]14

Q3— Section header —

3.1Calculate the standing wave ratio for each of the fol lowin loads connected to a 600 [17] QUESTION17

4.1The following information concerning a two stage amplifier is given: STAGE 1 STAGE 2 Gain Input resistance

4.2[16]16

Q5— Section header —

5.1Draw a neat, labelled circuit diagram of a Class C modulator using an NPN transistor. ndicate all relevant waveforms. (7\

5.2Explain the full operation of the Class C modulator in QUESTION

5.1(5\

5.3Explain sampling with reference to TDM. Use neat sketches to substantiate the explanation [18]18

Q6— Section header —

6.1ndicate whether the following statement is TRUE or FALSE by writing only 'True' or 'False' next to the question number (6.1\ in the ANSWER BOOK. The gain of an antenna effectively increases the effective aperture of the

6.2Define th term ndwidth of an antenna (2\

6.3Define each of the following terms with reference to antennae:

6.3.1Polarisation

6.3.2

6.4A radar installation is used to detect a 9 m target at a distance of 100 km. The frequency of operation is 3 GHz and both the transmitter and receiver antennas have a gain of 20 each. o detect the target successfully, a

Topics Identified

Business Plan

Mark Allocation

Total100 marks

Sections19 + 14 + 17 + 16 + 18 + 16 = 100 marks

Paper information

TitleDocument

SubjectCommunication Electronics

LevelN6

Document typeQuestion paper

Year2020

MonthApril

Pages10

Downloads5

Examination context

Decade2020s

Years ago6y

SeasonAutumn (SH)

Start dayWednesday

Exam periodApril 2020

Days since exam2,384

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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File size402.8 KB

Pages10

Archived on8 September 2026

File age46d

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