Radioteorie N3 — Document

April 2021 — N3 — Radioteorie

N3 2021 Nated Engineering

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🎯 100 marks ⏱️ 3h 📄 4 pages 📝 30 items found

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Q1— Section header —

1.10\ in die ANTWOORDBOEK neer.

1.1'n Spanningsvolger operasionele versterker produseer 'n versterking van (infiniteit/eenheid\.

1.2Die uitgang van 'n RF sender word met 'n (watt/impedansie\ meter gemeet.

1.3Omdat party elektrone en ione verbind, (vermeerder/verminder\ ionisering in die nag.

1.4'n (Dipool/log periodieke\ antenna is die hoofsendelement van 'n Yagi antenna.

1.5Amateurradio operateurs gebruik dikwels (ESB/DSB\.

1.6'n (Vliegwiel/Knypwiel\ word aan die spil vasgesit om 'n verandering in die bandspoed uit te skakel.

1.7(IF/RF\ stadiums lewer die meeste van die versterking in 'n ontvanger op.

1.8As FM oorgesend word, is dit noodsaaklik dat die (spits/middel\ frekwensie waar die afwyking voorkom, konstant bly.

1.9'n RF versterker isoleer die (IF versterker/plaaslike ossillator\ sein van die antenna.

1.1010

Q2— Section header —

Q3— Section header —

Q4— Section header —

4.1Teken 'n baandiagram van 'n Colpitts ossillator in 'n radiosender. (12\

4.2Teken 'n frekwensiespektrumgrafiek van 'n gemoduleerde sein in 'n stelsel waarin 'n drafrekwensie van 10 kHz deur 'n stemfrekwensiesein gemoduleer word wat die frekwensiespektrum 300 Hz tot 3 000 Hz beset.

Q5— Section header —

5.1Noem SES stadiums van 'n enkelsybandsender wat in 'n blokdiagram voorgestel word, en gee 'n kort beskrywing van elke stadium. (12\

5.2Noem SES soorte modulasies wat in transmissiestelsels gebruik word (moenie afkortings gebruik nie\. (6\

5.3Verduidelik kortliks wat FVS ('FSK' in Engels\ beteken. (2\ [20]20

Q6— Section header —

Q7— Section header —

7.1Troposferiese kanalisering 5\

7.2Troposferiese strooiing 5\

7.3Maksimum bruikbare frekwensie (4\ [14]14

Q8— Section header —

8.1Noem VIER moontlike foute wat 'n wisselende spoed en die gepaardgaande klankvervorming daarvan in 'n bandopnemer tot gevolg het. (4\

8.2Beskryf kortliks die whiaau en die gefladder wat voorkom as die bandspoed nie konstant bly nie. (2\

8.3Noem die verband tussen die opnamespoed en die frekwensieresponsie by bandopnemers. (4\ [10] TOTAAL:10

Mark Allocation

Total100 marks

Sections10 + 10 + 10 + 20 + 20 + 6 + 14 + 10 = 100 marks

Paper information

TitleDocument

SubjectRadioteorie

LevelN3

Document typeQuestion paper

Year2021

MonthApril

Pages5

Downloads4

Examination context

Decade2020s

Years ago5y

SeasonAutumn (SH)

Start dayThursday

Exam periodApril 2021

Days since exam2,019

About Radioteorie 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.

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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.

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A practical revision approach

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