- 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]>
20 lines
501 B
Markdown
20 lines
501 B
Markdown
<left>
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[picture:470:a_lnb:Blockschema över en mottagargren med LNB]
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</left>
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<right>
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* *Low Noise Block Converter* (LNB) blandar ned höga frekvenser direkt efter antennen
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* Vanlig vid satellittrafik
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* Lägre kabelförluster tack vare lägre frekvens
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</right>
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---
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<left>
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[picture:470:a_lnb:Blockschema över en mottagargren med LNB]
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</left>
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<right>
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* Behöver matningsspänning
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* Bias-T används
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* Olika spänningar för olika polarisation
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* Vanligen $\qty{12}{\volt}$ och $\qty{18}{\volt}$
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</right>
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