Communication Electronics N5 — Memo

August 2018 — N5 — Communication Electronics

N5 2018 Nated Engineering

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Q1— Section header —

1.1Z = +(X +(7 = 10 A (3\

1.260 V (2\

1.3

1.4Power 600 W (2\

1.5Power (2\ 390 )T

1.6

1.7Power (2\

1.8

1.9

1.10Power = 90 W (3\ [24] 390 )T24

Q2— Section header —

2.1nsertion loss i s the total loss of the mismatch losses combined with the attenuator losses when a network is inserted. (2\

2.2

Q3— Section header —

3.1onstant filter is a simple T or networks must be designed. (4\

3.2A filter i s a network designed to pass a certain band of frequencies without loss while attenuating all other frequencies (2\

3.3711,76 Hz (4\

3.4Prototype low pass [13]13

Q4— Section header —

4.1arrier frequency 390

4.2.3(2\

4.2.4(1\

4.2.5(1\

4.3(16\

4.4Radio detector (1\ [28] FF'DFCFFDFFF9FC,FDFFFF+" FFF28

Q5— Section header —

5.1Beam width i s the angular separation between the two half power points on the radiatio n pattern and applies to narrow beam antennas.

5.2An antenna is a metallic structure used to convert high frequency currents into electromagnetic waves.

5.3esonant antenna is an open transmission line of reso nant length which consists of multiple of half wavelengths.

5.4Aperture is the power received by an antenna and is directly proportional to the collecting area of the antenna.

5.515

Topics Identified

Business Plan

Mark Allocation

Sections24 + 20 + 13 + 28 + 15 = 100 marks

Paper information

TitleMemo

SubjectCommunication Electronics

LevelN5

Document typeNated Engineering

Year2018

MonthAugust

Pages8

Downloads5

Examination context

Decade2010s

Years ago8y

SeasonWinter (SH)

Start dayWednesday

Exam periodAugust 2018

Days since exam2,992

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.

File details

File size321.3 KB

Pages8

Archived on8 September 2026

File age46d

ContributorFreeMode

Fingerprint3ACF515CB858

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