Swedish adaptation: Instegscertifikat and HAREC content
- Sections and slides rewritten in Swedish; German law and institutions replaced by Swedish/CEPT/ITU equivalents (PTS, SSA, PTSFS 2025:1, SSMFS 2008:18), unverified statements marked "% TODO VERIFY" - New toc: INSTEG, HAREC, UPPGRADERING; section idents are Swedish (see ident-map.tsv) - Exam-question tags, BNetzA question pool, solutions and the German SWL course removed - Static pages, snippets, applets, READMEs and image alt-texts translated - TikZ labels translated; SVG drawings regenerated (drawing 689 still fails to build upstream: it references a missing photo) - Changed from the original: not endorsed by DARC e.V., SSA or PTS Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
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### TDMA
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<left>
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* Time Division Multiple Access – tidsmultiplex
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* De digitala nyttodata delas upp och skickas efter varandra på samma frekvens
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* I mottagaren sätts dataströmmen ihop igen
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</left>
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<right>
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[picture:844:e_vielfachzugriff_tdma:Tidsmultiplex med tre signaler]
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</right>
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---
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### CDMA
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<left>
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* Code Division Multiple Access – kodmultiplex
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* De digitala nyttodata kodas (blandas) med en digital kod
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* I mottagaren används samma digitala kod för avkodning
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</left>
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<right>
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[picture:846:e_vielfachzugriff_cdma:Kodmultiplex med tre signaler]
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</right>
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<note>
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* Flera signaler kan överföras på samma frekvens
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</note>
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---
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### FDMA
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<left>
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* Frequency Division Multiple Access – frekvensmultiplex
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* Den digitala signalen delas upp på flera frekvenser
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* Därmed kan mer bandbredd användas
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</left>
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<right>
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[picture:845:e_vielfachzugriff_cdma:Frekvensmultiplex med tre signaler]
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</right>
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